Autonomous system
AS36105 BBT-ISP
Unclassified ARIN
Summary
Big Bend Telephone Company
residential rural telecom access
The AS handle BBT-ISP is operated by Big Bend Telephone Company, Inc.
What it's used for
- The address space carries residential and business access traffic, evidenced by reverse DNS entries such as
65-65-132-0.dsl.bigbend.netand209-65-146-0.dsl.bigbend.net. - The network announces 25,600 IPv4 addresses across 14 prefixes while maintaining only 4 observed neighbours, a ratio that indicates an access or eyeball network rather than a transit provider.
Notable
- Registrants largely align with the announcer, including "Big Bend Telephone Company, Inc." and "BIG BEND," though some prefixes like
65.65.128.0/20list "AT&T Enterprises, LLC" and others use "SBCIS" netnames, reflecting historical acquisitions. - Big Bend Telephone Company was founded in 1960 and serves as a rural telecommunications provider in West Texas.
- The inventory consists of 14 IPv4 prefixes with no IPv6 announcements, including blocks inherited from SBC and AT&T.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 14 prefixes · 25.60K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 14 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS36105- Registry name
- BBT-ISP
- Registrant
- Big Bend Telephone Company, Inc.
- Abuse contact
- brian@bigbend.com
- Registered
- 2005-09-02
- Last changed
- 2012-02-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 34 valid, 0 with no ROA
- ROAs
- 10 authorising AS36105
- ASPA
- no ASPA record
- IRR
- 100% registered · 34 of 34 announcements
- Route objects
- 100 naming AS36105
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,783 prefixes, as published 2026-10-20. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere