AS21947
Blackfoot Telephone Cooperative, Inc.
Registration
IPv4 Prefixes
14 prefixes · 71,424 addresses Routing data as of 2026-10-08 16:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 64.25.128.0/20 | 64.25.128.0 – 64.25.143.255 | 4,096 |
| 66.109.128.0/19 | 66.109.128.0 – 66.109.159.255 | 8,192 |
| 69.51.64.0/18 | 69.51.64.0 – 69.51.127.255 | 16,384 |
| 69.165.112.0/20 | 69.165.112.0 – 69.165.127.255 | 4,096 |
| 192.150.152.0/21 | 192.150.152.0 – 192.150.159.255 | 2,048 |
| 192.225.176.0/20 | 192.225.176.0 – 192.225.191.255 | 4,096 |
| 198.60.195.0/24 | 198.60.195.0 – 198.60.195.255 | 256 |
| 199.195.120.0/21 | 199.195.120.0 – 199.195.127.255 | 2,048 |
| 204.11.244.0/22 | 204.11.244.0 – 204.11.247.255 | 1,024 |
| 205.167.162.0/23 | 205.167.162.0 – 205.167.163.255 | 512 |
| 209.137.224.0/19 | 209.137.224.0 – 209.137.255.255 | 8,192 |
| 209.200.192.0/19 | 209.200.192.0 – 209.200.223.255 | 8,192 |
| 216.14.224.0/19 | 216.14.224.0 – 216.14.255.255 | 8,192 |
| 216.47.48.0/20 | 216.47.48.0 – 216.47.63.255 | 4,096 |
IPv6 Prefixes
3 prefixes · 196,608 × /48 Routing data as of 2026-10-08 16:00 UTC
| Prefix | Addresses |
|---|---|
| 2001:1940:: | 296 |
| 2604:300:: | 296 |
| 2607:f8e0:: | 296 |
BGP Neighbours
31 unique neighbours · 9 upstream/peer · 15 downstream · 7 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. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Networks seen to the right of this AS in BGP paths — networks whose routes it carries, typically its customers (downstreams). 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. Upstream & peer side (9)
AS Name AS paths IPv4 sightings IPv6 sightings AS1299 TWELVE99 Arelion Sweden AB 1,551 4,961 234 AS6939 HURRICANE - Hurricane Electric LLC 1,302 481 2,488 AS2914 NTT-DATA-2914 - NTT America, Inc. 815 2,425 142 AS15305 SYRINGANETWORKS - Syringa Networks, LLC 240 716 24 AS9002 RETN-AS RETN Limited 45 129 9 AS32621 TCV-511 - Twin City VoIP, Inc. 15 45 0 AS394256 CLOUDSINGULARITY - Tech Futures Interactive Inc. 15 43 9 AS137409 GSLNETWORKS-AS-AP - GSL Networks Pty LTD 12 36 0 AS7575 AARNET-AS-AP - Australian Academic and Research Network (AARNet) 10 31 0 Downstream side (15)
AS Name AS paths IPv4 sightings IPv6 sightings AS46324 ADVANCED-STREAM-01 - Advanced Stream Inc. 490 699 292 AS15331 BCI-LAB - Blackfoot Telephone Cooperative, Inc. 469 332 361 AS402935 CITY-OF-BELGRADE-MT - City 462 332 360 AS33281 BRIGHAM-YOUNG-UNIVERSITY-IDAHO - BRIGHAM YOUNG UNIVERSITY - IDAHO 277 28 359 AS22785 GLACIER-BANCORP-INC - GLACIER BANCORP INC 267 555 0 AS33521 MISSOULA-COUNTY-PUBLIC-SCHOOLS - Missoula County Public Schools 262 332 0 AS54410 BDHS-AS - Bozeman Deaconess Health Services 260 332 0 AS395861 MIA - Medical Imaging Associates of Idaho Falls, Inc. 260 755 0 AS397162 SUMOFIBER-IDAHO - Sumofiber 256 269 503 AS20274 FVCC-AS - Flathead Valley Community College 172 212 0 AS13590 MDMH - Marcus Daly Memorial Hospital Corporation 134 169 0 AS27391 WASHCORP-AS1 - Washington Corporations 124 504 0 AS398437 HOT-SPRINGS-TEL-01 - Hot Springs Telephone Company 55 71 0 AS393630 AVANTGUARD - Avantguard Monitoring Centers 53 63 0 AS1378 IBEL - Interbel Telephone Cooperative, Inc. 22 185 0 Collector-only (7)
Raw RDAP Response
{
"endAutnum": 21947,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-21T13:38:34-05:00"
},
{
"eventAction": "registration",
"eventDate": "2010-11-01T12:00:22-04:00"
}
],
"handle": "FEENS-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/FEENS-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/21947"
},
{
"href": "https://whois.arin.net/rest/poc/FEENS-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/21947"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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"technical",
"noc"
],
"status": [
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],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-30T10:15:56-04:00"
},
{
"eventAction": "registration",
"eventDate": "2023-06-02T13:28:20-04:00"
}
],
"handle": "FLYNN168-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/FLYNN168-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/21947"
},
{
"href": "https://whois.arin.net/rest/poc/FLYNN168-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/21947"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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],
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],
"vcardArray": [
"vcard",
[
[
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{},
"text",
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],
[
"fn",
{},
"text",
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],
[
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]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-11-20T08:30:31-05:00"
},
{
"eventAction": "registration",
"eventDate": "2005-01-18T17:07:10-05:00"
}
],
"handle": "NAE2-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NAE2-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/21947"
},
{
"href": "https://whois.arin.net/rest/poc/NAE2-ARIN",
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"value": "https://rdap.arin.net/registry/autnum/21947"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
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"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "1221 North Russell St\nMissoula\nMT\n59808\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Network Abuse Email"
],
[
"org",
{},
"text",
"Blackfoot Telephone Cooperative Inc."
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-406-541-5000"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-11-19T10:56:55-05:00"
},
{
"eventAction": "registration",
"eventDate": "2021-11-18T17:55:52-05:00"
}
],
"handle": "GRAYS80-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/GRAYS80-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/21947"
},
{
"href": "https://whois.arin.net/rest/poc/GRAYS80-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/21947"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-06-02T16:54:55-04:00"
},
{
"eventAction": "registration",
"eventDate": "2015-05-01T20:02:26-04:00"
}
],
"handle": "DOMBR8-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/DOMBR8-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/21947"
},
{
"href": "https://whois.arin.net/rest/poc/DOMBR8-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/21947"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2024-06-01"
],
"title": "Unvalidated POC"
}
],
"roles": [
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
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]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-11-25T11:09:46-05:00"
},
{
"eventAction": "registration",
"eventDate": "1999-08-11T00:00:00-04:00"
}
],
"handle": "BTC-13",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/BTC-13",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/21947"
},
{
"href": "https://whois.arin.net/rest/org/BTC-13",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/21947"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
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{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Blackfoot Telephone Cooperative, Inc."
],
[
"adr",
{
"label": "1221 N. Russel St.\nMissoula\nMT\n59808\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2013-07-22T15:54:52-04:00"
},
{
"eventAction": "registration",
"eventDate": "2001-07-17T00:00:00-04:00"
}
],
"handle": "AS21947",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/21947",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/21947"
},
{
"href": "https://whois.arin.net/rest/asn/AS21947",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/21947"
}
],
"name": "BCI",
"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/21947"
}
],
"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/21947"
}
],
"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": 21947,
"status": [
"active"
]
} Contact details of private individuals are redacted.