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AS11686

Zayo Bandwidth

ARIN US active Announced
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Organization
Zayo Bandwidth
ZAYO-ENA-11686
Registered
Nov 16, 1998
27 years ago
IPv4 Prefixes
262
734,976 addresses
IPv6 Prefixes
6
65,792 × /48
BGP Neighbours
42
15 upstream/peer · 13 downstream · 14 collector-only

Registration

AS Number AS11686 AS Name ZAYO-ENA-11686 Organization Zayo Bandwidth Organization ID ZAYOB Address 1401 Wynkoop St., #500, Denver, CO, 80202, United States Country United States (US) Registry ARIN Allocated Nov 16, 1998 Record Created Nov 16, 1998 Last Updated Oct 02, 2025 Status
active
WHOIS Server whois.arin.net AS Description ZAYO-ENA-11686 - Zayo Bandwidth, US Abuse Email [email protected] Abuse Phone +1-866-236-2824

IPv4 Prefixes

262 prefixes · 734,976 addresses · 16 top-level Routing data as of 2026-10-07 16:00 UTC

38.0.0.0/8 · 1 prefix · 256 addresses
PrefixRangeAddresses
38.29.170.0/2438.29.170.0 – 38.29.170.255256
72.0.0.0/8 · 1 prefix · 1,024 addresses
PrefixRangeAddresses
72.162.136.0/2272.162.136.0 – 72.162.139.2551,024
96.0.0.0/8 · 29 prefixes · 131,072 addresses
PrefixRangeAddresses
96.4.0.0/1596.4.0.0 – 96.5.255.255131,072
96.4.0.0/1896.4.0.0 – 96.4.63.25516,384
96.4.8.0/2196.4.8.0 – 96.4.15.2552,048
96.4.64.0/1896.4.64.0 – 96.4.127.25516,384
96.4.128.0/1896.4.128.0 – 96.4.191.25516,384
96.4.174.0/2396.4.174.0 – 96.4.175.255512
96.4.192.0/1896.4.192.0 – 96.4.255.25516,384
96.5.0.0/1896.5.0.0 – 96.5.63.25516,384
96.5.8.0/2396.5.8.0 – 96.5.9.255512
96.5.64.0/1996.5.64.0 – 96.5.95.2558,192
96.5.88.0/2196.5.88.0 – 96.5.95.2552,048
96.5.96.0/2196.5.96.0 – 96.5.103.2552,048
96.5.112.0/2196.5.112.0 – 96.5.119.2552,048
96.5.117.0/2496.5.117.0 – 96.5.117.255256
96.5.120.0/2196.5.120.0 – 96.5.127.2552,048
96.5.120.0/2396.5.120.0 – 96.5.121.255512
96.5.122.0/2496.5.122.0 – 96.5.122.255256
96.5.128.0/2096.5.128.0 – 96.5.143.2554,096
96.5.132.0/2496.5.132.0 – 96.5.132.255256
96.5.144.0/2296.5.144.0 – 96.5.147.2551,024
96.5.156.0/2296.5.156.0 – 96.5.159.2551,024
96.5.160.0/2196.5.160.0 – 96.5.167.2552,048
96.5.176.0/2196.5.176.0 – 96.5.183.2552,048
96.5.192.0/2096.5.192.0 – 96.5.207.2554,096
96.5.208.0/2196.5.208.0 – 96.5.215.2552,048
96.5.216.0/2196.5.216.0 – 96.5.223.2552,048
96.5.224.0/2196.5.224.0 – 96.5.231.2552,048
96.5.240.0/2096.5.240.0 – 96.5.255.2554,096
96.5.241.0/2496.5.241.0 – 96.5.241.255256
165.0.0.0/8 · 18 prefixes · 131,072 addresses
PrefixRangeAddresses
165.138.0.0/16165.138.0.0 – 165.138.255.25565,536
165.138.9.0/24165.138.9.0 – 165.138.9.255256
165.138.56.0/24165.138.56.0 – 165.138.56.255256
165.138.86.0/24165.138.86.0 – 165.138.86.255256
165.138.88.0/24165.138.88.0 – 165.138.88.255256
165.138.90.0/24165.138.90.0 – 165.138.90.255256
165.138.121.0/24165.138.121.0 – 165.138.121.255256
165.138.138.0/24165.138.138.0 – 165.138.138.255256
165.138.165.0/24165.138.165.0 – 165.138.165.255256
165.138.169.0/24165.138.169.0 – 165.138.169.255256
165.139.0.0/16165.139.0.0 – 165.139.255.25565,536
165.139.32.0/24165.139.32.0 – 165.139.32.255256
165.139.44.0/24165.139.44.0 – 165.139.44.255256
165.139.47.0/24165.139.47.0 – 165.139.47.255256
165.139.133.0/24165.139.133.0 – 165.139.133.255256
165.139.157.0/24165.139.157.0 – 165.139.157.255256
165.139.202.0/24165.139.202.0 – 165.139.202.255256
165.139.208.0/22165.139.208.0 – 165.139.211.2551,024
168.0.0.0/8 · 5 prefixes · 66,048 addresses
PrefixRangeAddresses
168.213.254.0/23168.213.254.0 – 168.213.255.255512
168.254.0.0/16168.254.0.0 – 168.254.255.25565,536
168.254.0.0/18168.254.0.0 – 168.254.63.25516,384
168.254.50.0/24168.254.50.0 – 168.254.50.255256
168.254.64.0/18168.254.64.0 – 168.254.127.25516,384
170.0.0.0/8 · 198 prefixes · 327,680 addresses
PrefixRangeAddresses
170.180.0.0/14170.180.0.0 – 170.183.255.255262,144
170.180.161.0/24170.180.161.0 – 170.180.161.255256
170.180.190.0/24170.180.190.0 – 170.180.190.255256
170.185.0.0/17170.185.0.0 – 170.185.127.25532,768
170.185.0.0/20170.185.0.0 – 170.185.15.2554,096
170.185.16.0/22170.185.16.0 – 170.185.19.2551,024
170.185.17.0/24170.185.17.0 – 170.185.17.255256
170.185.21.0/24170.185.21.0 – 170.185.21.255256
170.185.22.0/24170.185.22.0 – 170.185.22.255256
170.185.23.0/24170.185.23.0 – 170.185.23.255256
170.185.24.0/24170.185.24.0 – 170.185.24.255256
170.185.25.0/24170.185.25.0 – 170.185.25.255256
170.185.26.0/24170.185.26.0 – 170.185.26.255256
170.185.27.0/24170.185.27.0 – 170.185.27.255256
170.185.28.0/24170.185.28.0 – 170.185.28.255256
170.185.29.0/24170.185.29.0 – 170.185.29.255256
170.185.30.0/24170.185.30.0 – 170.185.30.255256
170.185.31.0/24170.185.31.0 – 170.185.31.255256
170.185.32.0/24170.185.32.0 – 170.185.32.255256
170.185.33.0/24170.185.33.0 – 170.185.33.255256
170.185.34.0/24170.185.34.0 – 170.185.34.255256
170.185.35.0/24170.185.35.0 – 170.185.35.255256
170.185.36.0/23170.185.36.0 – 170.185.37.255512
170.185.38.0/24170.185.38.0 – 170.185.38.255256
170.185.39.0/24170.185.39.0 – 170.185.39.255256
170.185.40.0/24170.185.40.0 – 170.185.40.255256
170.185.41.0/24170.185.41.0 – 170.185.41.255256
170.185.42.0/24170.185.42.0 – 170.185.42.255256
170.185.43.0/24170.185.43.0 – 170.185.43.255256
170.185.44.0/24170.185.44.0 – 170.185.44.255256
170.185.45.0/24170.185.45.0 – 170.185.45.255256
170.185.46.0/23170.185.46.0 – 170.185.47.255512
170.185.48.0/24170.185.48.0 – 170.185.48.255256
170.185.49.0/24170.185.49.0 – 170.185.49.255256
170.185.50.0/24170.185.50.0 – 170.185.50.255256
170.185.51.0/24170.185.51.0 – 170.185.51.255256
170.185.52.0/24170.185.52.0 – 170.185.52.255256
170.185.53.0/24170.185.53.0 – 170.185.53.255256
170.185.54.0/24170.185.54.0 – 170.185.54.255256
170.185.55.0/24170.185.55.0 – 170.185.55.255256
170.185.56.0/24170.185.56.0 – 170.185.56.255256
170.185.57.0/24170.185.57.0 – 170.185.57.255256
170.185.58.0/24170.185.58.0 – 170.185.58.255256
170.185.59.0/24170.185.59.0 – 170.185.59.255256
170.185.60.0/24170.185.60.0 – 170.185.60.255256
170.185.61.0/24170.185.61.0 – 170.185.61.255256
170.185.62.0/24170.185.62.0 – 170.185.62.255256
170.185.63.0/24170.185.63.0 – 170.185.63.255256
170.185.65.0/24170.185.65.0 – 170.185.65.255256
170.185.66.0/24170.185.66.0 – 170.185.66.255256
170.185.67.0/24170.185.67.0 – 170.185.67.255256
170.185.68.0/24170.185.68.0 – 170.185.68.255256
170.185.69.0/24170.185.69.0 – 170.185.69.255256
170.185.70.0/24170.185.70.0 – 170.185.70.255256
170.185.71.0/24170.185.71.0 – 170.185.71.255256
170.185.72.0/24170.185.72.0 – 170.185.72.255256
170.185.73.0/24170.185.73.0 – 170.185.73.255256
170.185.74.0/24170.185.74.0 – 170.185.74.255256
170.185.75.0/24170.185.75.0 – 170.185.75.255256
170.185.76.0/24170.185.76.0 – 170.185.76.255256
170.185.77.0/24170.185.77.0 – 170.185.77.255256
170.185.78.0/24170.185.78.0 – 170.185.78.255256
170.185.79.0/24170.185.79.0 – 170.185.79.255256
170.185.80.0/24170.185.80.0 – 170.185.80.255256
170.185.81.0/24170.185.81.0 – 170.185.81.255256
170.185.82.0/24170.185.82.0 – 170.185.82.255256
170.185.83.0/24170.185.83.0 – 170.185.83.255256
170.185.84.0/23170.185.84.0 – 170.185.85.255512
170.185.86.0/24170.185.86.0 – 170.185.86.255256
170.185.88.0/24170.185.88.0 – 170.185.88.255256
170.185.89.0/24170.185.89.0 – 170.185.89.255256
170.185.90.0/24170.185.90.0 – 170.185.90.255256
170.185.91.0/24170.185.91.0 – 170.185.91.255256
170.185.92.0/24170.185.92.0 – 170.185.92.255256
170.185.93.0/24170.185.93.0 – 170.185.93.255256
170.185.94.0/24170.185.94.0 – 170.185.94.255256
170.185.95.0/24170.185.95.0 – 170.185.95.255256
170.185.96.0/24170.185.96.0 – 170.185.96.255256
170.185.97.0/24170.185.97.0 – 170.185.97.255256
170.185.98.0/24170.185.98.0 – 170.185.98.255256
170.185.99.0/24170.185.99.0 – 170.185.99.255256
170.185.100.0/24170.185.100.0 – 170.185.100.255256
170.185.101.0/24170.185.101.0 – 170.185.101.255256
170.185.102.0/24170.185.102.0 – 170.185.102.255256
170.185.103.0/24170.185.103.0 – 170.185.103.255256
170.185.104.0/24170.185.104.0 – 170.185.104.255256
170.185.105.0/24170.185.105.0 – 170.185.105.255256
170.185.106.0/24170.185.106.0 – 170.185.106.255256
170.185.107.0/24170.185.107.0 – 170.185.107.255256
170.185.108.0/23170.185.108.0 – 170.185.109.255512
170.185.110.0/24170.185.110.0 – 170.185.110.255256
170.185.111.0/24170.185.111.0 – 170.185.111.255256
170.185.112.0/24170.185.112.0 – 170.185.112.255256
170.185.113.0/24170.185.113.0 – 170.185.113.255256
170.185.114.0/24170.185.114.0 – 170.185.114.255256
170.185.116.0/24170.185.116.0 – 170.185.116.255256
170.185.117.0/24170.185.117.0 – 170.185.117.255256
170.185.118.0/24170.185.118.0 – 170.185.118.255256
170.185.120.0/24170.185.120.0 – 170.185.120.255256
170.185.121.0/24170.185.121.0 – 170.185.121.255256
170.185.122.0/24170.185.122.0 – 170.185.122.255256
170.185.123.0/24170.185.123.0 – 170.185.123.255256
170.185.124.0/24170.185.124.0 – 170.185.124.255256
170.185.125.0/24170.185.125.0 – 170.185.125.255256
170.185.126.0/23170.185.126.0 – 170.185.127.255512
170.185.126.0/24170.185.126.0 – 170.185.126.255256
170.185.127.0/24170.185.127.0 – 170.185.127.255256
170.185.128.0/17170.185.128.0 – 170.185.255.25532,768
170.185.128.0/24170.185.128.0 – 170.185.128.255256
170.185.129.0/24170.185.129.0 – 170.185.129.255256
170.185.130.0/24170.185.130.0 – 170.185.130.255256
170.185.133.0/24170.185.133.0 – 170.185.133.255256
170.185.134.0/24170.185.134.0 – 170.185.134.255256
170.185.135.0/24170.185.135.0 – 170.185.135.255256
170.185.136.0/24170.185.136.0 – 170.185.136.255256
170.185.137.0/24170.185.137.0 – 170.185.137.255256
170.185.138.0/24170.185.138.0 – 170.185.138.255256
170.185.139.0/24170.185.139.0 – 170.185.139.255256
170.185.141.0/24170.185.141.0 – 170.185.141.255256
170.185.142.0/24170.185.142.0 – 170.185.142.255256
170.185.143.0/24170.185.143.0 – 170.185.143.255256
170.185.144.0/24170.185.144.0 – 170.185.144.255256
170.185.145.0/24170.185.145.0 – 170.185.145.255256
170.185.146.0/24170.185.146.0 – 170.185.146.255256
170.185.147.0/24170.185.147.0 – 170.185.147.255256
170.185.149.0/24170.185.149.0 – 170.185.149.255256
170.185.150.0/24170.185.150.0 – 170.185.150.255256
170.185.151.0/24170.185.151.0 – 170.185.151.255256
170.185.152.0/24170.185.152.0 – 170.185.152.255256
170.185.153.0/24170.185.153.0 – 170.185.153.255256
170.185.155.0/24170.185.155.0 – 170.185.155.255256
170.185.156.0/24170.185.156.0 – 170.185.156.255256
170.185.157.0/24170.185.157.0 – 170.185.157.255256
170.185.158.0/24170.185.158.0 – 170.185.158.255256
170.185.159.0/24170.185.159.0 – 170.185.159.255256
170.185.160.0/24170.185.160.0 – 170.185.160.255256
170.185.161.0/24170.185.161.0 – 170.185.161.255256
170.185.162.0/24170.185.162.0 – 170.185.162.255256
170.185.163.0/24170.185.163.0 – 170.185.163.255256
170.185.164.0/24170.185.164.0 – 170.185.164.255256
170.185.165.0/24170.185.165.0 – 170.185.165.255256
170.185.167.0/24170.185.167.0 – 170.185.167.255256
170.185.168.0/24170.185.168.0 – 170.185.168.255256
170.185.169.0/24170.185.169.0 – 170.185.169.255256
170.185.170.0/24170.185.170.0 – 170.185.170.255256
170.185.171.0/24170.185.171.0 – 170.185.171.255256
170.185.172.0/24170.185.172.0 – 170.185.172.255256
170.185.173.0/24170.185.173.0 – 170.185.173.255256
170.185.174.0/23170.185.174.0 – 170.185.175.255512
170.185.176.0/24170.185.176.0 – 170.185.176.255256
170.185.177.0/24170.185.177.0 – 170.185.177.255256
170.185.178.0/24170.185.178.0 – 170.185.178.255256
170.185.179.0/24170.185.179.0 – 170.185.179.255256
170.185.180.0/24170.185.180.0 – 170.185.180.255256
170.185.181.0/24170.185.181.0 – 170.185.181.255256
170.185.182.0/24170.185.182.0 – 170.185.182.255256
170.185.183.0/24170.185.183.0 – 170.185.183.255256
170.185.184.0/24170.185.184.0 – 170.185.184.255256
170.185.187.0/24170.185.187.0 – 170.185.187.255256
170.185.188.0/24170.185.188.0 – 170.185.188.255256
170.185.189.0/24170.185.189.0 – 170.185.189.255256
170.185.190.0/24170.185.190.0 – 170.185.190.255256
170.185.191.0/24170.185.191.0 – 170.185.191.255256
170.185.192.0/24170.185.192.0 – 170.185.192.255256
170.185.194.0/24170.185.194.0 – 170.185.194.255256
170.185.195.0/24170.185.195.0 – 170.185.195.255256
170.185.196.0/24170.185.196.0 – 170.185.196.255256
170.185.197.0/24170.185.197.0 – 170.185.197.255256
170.185.198.0/24170.185.198.0 – 170.185.198.255256
170.185.199.0/24170.185.199.0 – 170.185.199.255256
170.185.200.0/24170.185.200.0 – 170.185.200.255256
170.185.201.0/24170.185.201.0 – 170.185.201.255256
170.185.202.0/24170.185.202.0 – 170.185.202.255256
170.185.204.0/24170.185.204.0 – 170.185.204.255256
170.185.205.0/24170.185.205.0 – 170.185.205.255256
170.185.206.0/24170.185.206.0 – 170.185.206.255256
170.185.207.0/24170.185.207.0 – 170.185.207.255256
170.185.208.0/24170.185.208.0 – 170.185.208.255256
170.185.209.0/24170.185.209.0 – 170.185.209.255256
170.185.210.0/24170.185.210.0 – 170.185.210.255256
170.185.211.0/24170.185.211.0 – 170.185.211.255256
170.185.212.0/24170.185.212.0 – 170.185.212.255256
170.185.213.0/24170.185.213.0 – 170.185.213.255256
170.185.214.0/23170.185.214.0 – 170.185.215.255512
170.185.216.0/24170.185.216.0 – 170.185.216.255256
170.185.217.0/24170.185.217.0 – 170.185.217.255256
170.185.218.0/24170.185.218.0 – 170.185.218.255256
170.185.219.0/24170.185.219.0 – 170.185.219.255256
170.185.220.0/24170.185.220.0 – 170.185.220.255256
170.185.221.0/24170.185.221.0 – 170.185.221.255256
170.185.222.0/24170.185.222.0 – 170.185.222.255256
170.185.223.0/24170.185.223.0 – 170.185.223.255256
170.185.224.0/24170.185.224.0 – 170.185.224.255256
170.185.231.0/24170.185.231.0 – 170.185.231.255256
170.185.232.0/21170.185.232.0 – 170.185.239.2552,048
170.185.240.0/21170.185.240.0 – 170.185.247.2552,048
170.185.248.0/23170.185.248.0 – 170.185.249.255512
170.185.250.0/24170.185.250.0 – 170.185.250.255256
204.0.0.0/8 · 5 prefixes · 8,192 addresses
PrefixRangeAddresses
204.63.176.0/21204.63.176.0 – 204.63.183.2552,048
204.63.240.0/21204.63.240.0 – 204.63.247.2552,048
204.86.168.0/21204.86.168.0 – 204.86.175.2552,048
204.86.168.0/24204.86.168.0 – 204.86.168.255256
204.86.176.0/21204.86.176.0 – 204.86.183.2552,048
207.0.0.0/8 · 4 prefixes · 4,096 addresses
PrefixRangeAddresses
207.191.176.0/20207.191.176.0 – 207.191.191.2554,096
207.191.176.0/21207.191.176.0 – 207.191.183.2552,048
207.191.184.0/22207.191.184.0 – 207.191.187.2551,024
207.191.188.0/22207.191.188.0 – 207.191.191.2551,024
208.0.0.0/8 · 1 prefix · 65,536 addresses
PrefixRangeAddresses
208.119.0.0/16208.119.0.0 – 208.119.255.25565,536

IPv6 Prefixes

6 prefixes · 65,792 × /48 · 2 top-level Routing data as of 2026-10-07 16:00 UTC

PrefixAddresses
2602:297::/40288
2610:128::/32296
2610:128:1200::/40288
2610:128:9000::/40288
2610:128:9100::/40288
2610:128:9500::/40288

BGP Neighbours

42 unique neighbours · 15 upstream/peer · 13 downstream · 14 collector-only. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries.

Upstream & peer side (15)

Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers.

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS6461ZAYO-6461 - Zayo Bandwidth2,48989,137793
AS174COGENT-174 - Cogent Communications, LLC1,4697,440451
AS6939HURRICANE - Hurricane Electric LLC5651,4781,182
AS14041AS-FRGP - University Corporation for Atmospheric Research435412
AS3450UTK - University of Tennessee6220
AS14048MEMPHIS-EDU - The University of Memphis6320
AS137409GSLNETWORKS-AS-AP - GSL Networks Pty LTD5440
AS4230AS4230 - CLARO S.A.2101
AS7195AS7195 - EDGEUNO S.A.S251
AS37468Angola Cables - Angola Cables220
AS1031PEER1-1031 - PEER 1031 LLC140
AS20326TERASWITCH - TeraSwitch Networks Inc.101
AS58453CMI-INT-HK - China Mobile International Limited140
AS61568AS61568 - ALOO TELECOM - FSF TECNOLOGIA SA150
AS64126AS64126 - DOMINICAN TELECOM PRIME, DTP, S.R.L.150

Downstream side (13)

Networks seen to the right of this AS in BGP paths — networks whose routes it carries, typically its customers (downstreams).

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS394209ECBOCES-VNETS - East Central BOCES367672333
AS25971MILWAUKEE-PS - Milwaukee Public Schools2711,3400
AS40252CLEVELAND-MUNICIPAL-SCHOOL-DISTRICT - Cleveland Municipal School District2711,8770
AS393393AISD-AS - Amarillo ISD2633,0150
AS400305MSDMTVERNON-IN - MSD of Mt. Vernon2593360
AS64248WCPS-ASN-01 - Worcester County Public Schools2583350
AS401912ASN-BVSD-01 - Boulder Valley School District (BVSD)2581,6750
AS393273ESC17-AS - Education Service Center, Region 172573360
AS46930ASN-DPSD - Denver Public Schools2563360
AS6092HARFORDCC-AS - Harford Community College2543310
AS46745GCSSK12NET - Gainesville City Schools51860
AS25964HCBE-17 - Henry County Board of Education451500
AS40109FORSYTH-K12-GA-US - Forsyth County Board of Education33530

Collector-only (14)

Networks seen to the left of this AS only when they peer directly with a RIPE RIS route collector, so the adjacency may be an artefact of that peering; many of them also appear on the downstream side.

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS1828UNITAS - Unitas Global13874
AS49544i3Dnet i3D.net B.V121626
AS14907WIKIMEDIA - Wikimedia Foundation Inc.3121
AS13786SEABORN - Seabras 1 USA, LLC151
AS19151BBO-1 - BroadbandONE, LLC1102
AS20080AMPATH - Florida International University151
AS24482SGGS-AS-AP - SG.GS151
AS36236NETACTUATE - NetActuate, Inc151
AS52320AS52320 - GlobeNet Cabos Submarinos Colombia, S.A.S.151
AS61573AS61573 - IP TELECOM151
AS199524GCORE G-Core Labs S.A.150
AS263152AS263152 - MIGO TELECOM150
AS263237AS263237 - PowerHost Telecom SPA150
AS271253AS271253 - LINK BRASIL TELECOMUNICACOES LTDA150

Raw RDAP Response

{
  "endAutnum": 11686,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-09-09T12:53:47-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2013-07-18T03:08:18-04:00"
            }
          ],
          "handle": "ZIE-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/ZIE-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/11686"
            },
            {
              "href": "https://whois.arin.net/rest/poc/ZIE-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/11686"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "technical",
            "administrative",
            "noc"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "1805 29th Street, Suite 2050\nBoulder\nCO\n80301\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Zayo IP Engineering"
              ],
              [
                "org",
                {},
                "text",
                "Zayo Group"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-866-236-2824"
              ]
            ]
          ]
        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2023-12-19T08:48:34-05:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2016-10-06T09:17:28-04:00"
            }
          ],
          "handle": "ABUSE5675-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/ABUSE5675-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/11686"
            },
            {
              "href": "https://whois.arin.net/rest/poc/ABUSE5675-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/11686"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "remarks": [
            {
              "description": [
                "Please direct all abuse issues to this contact."
              ],
              "title": "Registration Comments"
            },
            {
              "description": [
                "ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2024-12-18"
              ],
              "title": "Unvalidated POC"
            }
          ],
          "roles": [
            "abuse"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "1805 29th Street, Suite 2050\nBoulder\nCO\n80301\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Abuse"
              ],
              [
                "org",
                {},
                "text",
                "Zayo Group - Abuse"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-866-236-2824"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2024-11-25T11:09:46-05:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2007-10-12T10:16:00-04:00"
        }
      ],
      "handle": "ZAYOB",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/ZAYOB",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/11686"
        },
        {
          "href": "https://whois.arin.net/rest/org/ZAYOB",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/11686"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Zayo Bandwidth"
          ],
          [
            "adr",
            {
              "label": "1401 Wynkoop St.\n#500\nDenver\nCO\n80202\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2025-10-02T07:38:16-04:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "1998-11-16T00:00:00-05:00"
    }
  ],
  "handle": "AS11686",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/11686",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/11686"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS11686",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/11686"
    }
  ],
  "name": "ZAYO-ENA-11686",
  "notices": [
    {
      "description": [
        "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
      ],
      "links": [
        {
          "href": "https://www.arin.net/resources/registry/whois/tou/",
          "rel": "terms-of-service",
          "type": "text/html",
          "value": "https://rdap.arin.net/registry/autnum/11686"
        }
      ],
      "title": "Terms of Service"
    },
    {
      "description": [
        "If you see inaccuracies in the results, please visit: "
      ],
      "links": [
        {
          "href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
          "rel": "inaccuracy-report",
          "type": "text/html",
          "value": "https://rdap.arin.net/registry/autnum/11686"
        }
      ],
      "title": "Whois Inaccuracy Reporting"
    },
    {
      "description": [
        "Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
      ],
      "title": "Copyright Notice"
    }
  ],
  "objectClassName": "autnum",
  "port43": "whois.arin.net",
  "rdapConformance": [
    "nro_rdap_profile_0",
    "rdap_level_0",
    "nro_rdap_profile_asn_flat_0"
  ],
  "startAutnum": 11686,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.