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AS16857

Central Texas Telecommunications

ARIN US active Announced
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Organization
Central Texas Telecommunications
CENTEX
Registered
Jun 20, 2000
26 years ago
IPv4 Prefixes
29
13,056 addresses
IPv6 Prefixes
0
BGP Neighbours
7
5 upstream/peer · 2 downstream

Registration

AS Number AS16857 AS Name CENTEX Organization Central Texas Telecommunications Organization ID CTTC-7 Address PO Box 627, Goldthwaite, TX, 76844, United States Country United States (US) Registry ARIN Allocated Jun 20, 2000 Record Created Jun 20, 2000 Last Updated Sep 04, 2019 Status
active
WHOIS Server whois.arin.net AS Description CENTEX - Central Texas Telecommunications, US Abuse Email [email protected] Abuse Phone +1-325-938-5611

IPv4 Prefixes

29 prefixes · 13,056 addresses · 22 top-level Routing data as of 2026-10-09 08:00 UTC

PrefixRangeAddresses
66.208.96.0/2466.208.96.0 – 66.208.96.255256
66.208.97.0/2466.208.97.0 – 66.208.97.255256
66.208.99.0/2466.208.99.0 – 66.208.99.255256
66.208.102.0/2366.208.102.0 – 66.208.103.255512
66.208.105.0/2466.208.105.0 – 66.208.105.255256
66.208.110.0/2466.208.110.0 – 66.208.110.255256
66.208.111.0/2466.208.111.0 – 66.208.111.255256
69.7.80.0/2469.7.80.0 – 69.7.80.255256
69.7.81.0/2469.7.81.0 – 69.7.81.255256
69.7.82.0/2469.7.82.0 – 69.7.82.255256
69.7.85.0/2469.7.85.0 – 69.7.85.255256
69.7.88.0/2269.7.88.0 – 69.7.91.2551,024
74.84.8.0/2474.84.8.0 – 74.84.8.255256
74.84.9.0/2474.84.9.0 – 74.84.9.255256
74.84.10.0/2474.84.10.0 – 74.84.10.255256
74.84.20.0/2374.84.20.0 – 74.84.21.255512
74.84.22.0/2374.84.22.0 – 74.84.23.255512
74.84.28.0/2374.84.28.0 – 74.84.29.255512
209.55.64.0/23209.55.64.0 – 209.55.65.255512
209.55.64.0/24209.55.64.0 – 209.55.64.255256
209.55.72.0/21209.55.72.0 – 209.55.79.2552,048
209.55.78.0/24209.55.78.0 – 209.55.78.255256
209.55.96.0/21209.55.96.0 – 209.55.103.2552,048
209.55.104.0/21209.55.104.0 – 209.55.111.2552,048
209.55.104.0/23209.55.104.0 – 209.55.105.255512
209.55.106.0/23209.55.106.0 – 209.55.107.255512
209.55.106.0/24209.55.106.0 – 209.55.106.255256
209.55.110.0/24209.55.110.0 – 209.55.110.255256
209.55.111.0/24209.55.111.0 – 209.55.111.255256

IPv6 Prefixes

This AS does not currently announce any IPv6 prefixes.

BGP Neighbours

7 unique neighbours · 5 upstream/peer · 2 downstream. 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 (5)

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
AS46849TLSN-TX - TEXAS LONE STAR NETWORK, LLC1,0076,1140
AS3356LEVEL3 - Level 3 Parent, LLC3163,9540
AS13876FIBER-64 - FiberLight, LLC2681,6600
AS1299TWELVE99 Arelion Sweden AB2675890
AS20058CCTC-LINK1 - Totelcom Communications, LLC455480

Downstream side (2)

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

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS36658ANGELOASPRIME - Angelo State University2891,6390
AS18618WCENTRALN - west central wireless2707080

Raw RDAP Response

{
  "endAutnum": 16857,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-03-04T09:30:46-05:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2011-01-25T16:40:46-05:00"
            }
          ],
          "handle": "MWG4-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/MWG4-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/16857"
            },
            {
              "href": "https://whois.arin.net/rest/poc/MWG4-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/16857"
            }
          ],
          "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": "2025-10-01T17:53:38-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2001-10-17T16:53:24-04:00"
            }
          ],
          "handle": "SC1235-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/SC1235-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/16857"
            },
            {
              "href": "https://whois.arin.net/rest/poc/SC1235-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/16857"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "noc",
            "administrative",
            "abuse",
            "technical"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "1012 Reilly Street\nGoldthwaite\nTX\n76844\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Shawn Calder"
              ],
              [
                "n",
                {},
                "text",
                [
                  "Calder",
                  "Shawn",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "kind",
                {},
                "text",
                "individual"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-325-938-5611"
              ]
            ]
          ]
        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2025-10-01T17:54:06-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2005-06-13T12:09:08-04:00"
            }
          ],
          "handle": "SYSTE112-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/SYSTE112-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/16857"
            },
            {
              "href": "https://whois.arin.net/rest/poc/SYSTE112-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/16857"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "technical",
            "noc",
            "abuse"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "1012 Reilly Street\nGoldthwaite\nTX\n76844\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "System Administrator"
              ],
              [
                "org",
                {},
                "text",
                "CENTRAL TEXAS COMMUNICATIONS"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-325-938-5611"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2026-01-27T15:55:47-05:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2019-08-12T10:21:09-04:00"
        }
      ],
      "handle": "CTTC-7",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/CTTC-7",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/16857"
        },
        {
          "href": "https://whois.arin.net/rest/org/CTTC-7",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/16857"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Central Texas Telecommunications"
          ],
          [
            "adr",
            {
              "label": "PO Box 627\nGoldthwaite\nTX\n76844\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2019-09-04T08:49:19-04:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "2000-06-20T00:00:00-04:00"
    }
  ],
  "handle": "AS16857",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/16857",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/16857"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS16857",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/16857"
    }
  ],
  "name": "CENTEX",
  "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/16857"
        }
      ],
      "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/16857"
        }
      ],
      "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": 16857,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.