Autonomous system
AS2386 INS-AS
Unclassified ARIN
Summary
AT&T Data Communications Services
enterprise legacy
INS-AS is an AT&T network, registered to AT&T Data Communications Services and today held under AT&T Enterprises, LLC.
What it's used for
- Enterprise and data-communications networking within AT&T's US operations.
Notable
- A genuinely early allocation, registered with ARIN in 1993, so the low AS number does reflect an early-internet assignment rather than a modern reissue.
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.
Transit providers
6 upstream, 12 downstream and 21 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 310 prefixes · 279K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 311 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS2386- Registry name
- INS-AS
- Registrant
- AT&T Enterprises, LLC
- Abuse contact
- abuse@att.net
- Registered
- 1993-02-03
- Last changed
- 2025-03-18
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 52% valid · 215 valid, 197 with no ROA 4 RPKI-invalid
- ROAs
- 222 authorising AS2386
- ASPA
- no ASPA record
- IRR
- 57% registered · 237 of 416 announcements 21 other origin
- Route objects
- 243 naming AS2386
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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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