AS8025 — BRIGHTOK-AS

Network type: residential

AS8025 announces 39 IPv4 prefixes covering 76,032 addresses and 0 IPv6 prefixes.

About this network

BRIGHTOK-AS — BrightNet Oklahoma, the internet arm of the Chickasaw Holding Company (Chickasaw Telephone / CTSI), based in Sulphur, Oklahoma. It sells broadband to homes and businesses across the telephone company's exchanges and, through affiliates, further across the state.

What it's used for

• Residential broadband — fibre-to-the-home in the newer builds, DSL almost everywhere else, with legacy dial-up still visible in the address space.
• Business connectivity for customers in the same rural Oklahoma footprint.

Notable

• Reverse DNS makes the kind unambiguous, and it names three eras of access technology at once: pppoe-216-137-20-9.prkn.ip.ctsiok.net, dsl-66-103-115-30.ip.ctsiok.net, davenport14p44.dial.brightok.net, and static assignments under static.ip.ctsiok.net. Those are subscribers.
• The inventory is a scatter of ~22 ARIN prefixes (roughly 80k addresses) accumulated over decades — 204.249.192.0/20, 67.206.96.0/19, 69.8.0.0/18, 205.240.128.0/20 and others. Small, contiguous-ish, and all registered to the operator: normal for a rural telco, unlike the scattered multi-RIR /24s that signal address brokering.
• An IP here is an Oklahoma end user. Do not read it as hosting.

Interesting

• ctsiok.net and brightok.net are the same operator under two brands: the incumbent telephone company and the broadband name it sells under. The reverse DNS never got unified, which is why both show up in the same AS.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 23.139.48.0/24
• 66.103.112.0/21
• 66.103.120.0/24
• 67.206.96.0/19
• 67.207.224.0/19
• 69.8.0.0/22
• 69.8.6.0/23
• 69.8.8.0/21
• 69.8.16.0/20
• 69.8.32.0/20
• 69.8.48.0/21
• 69.8.56.0/22
• 69.8.60.0/23
• 69.8.62.0/24
• 69.12.112.0/20
• 69.170.225.0/24
• 69.170.226.0/23
• 69.170.228.0/22
• 69.170.232.0/21
• 69.170.240.0/20
• 72.9.68.0/22
• 72.9.72.0/21
• 72.9.80.0/21
• 72.9.89.0/24
• 72.9.92.0/22
• 162.242.88.0/23
• 162.242.104.0/24
• 170.92.63.0/24
• 192.133.7.0/24
• 192.236.92.0/22
• 192.236.118.0/23
• 199.253.0.0/21
• 199.253.8.0/23
• 204.249.192.0/20
• 205.142.232.0/22
• 205.159.237.0/24
• 205.162.224.0/20
• 205.240.128.0/20
• 216.137.16.0/20

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC

Downstream networks

• AS27268 The Chickasaw Nation
• AS395795 Cherokee Telephone Company
• AS1086 Get LLC
• AS13467 Oklahoma Turnpike Authority

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS27268 The Chickasaw Nation
• AS395795 Cherokee Telephone Company
• AS1086 Get LLC
• AS13467 Oklahoma Turnpike Authority