Autonomous system
AS2687 ATGS-MMD-AS
Unclassified ARIN
Summary
AT&T Global Network Services
transit legacy
ATGS-MMD-AS is one of AT&T's managed-data networks, operated under AT&T Global Network Services (the former IBM Global Network / AGNS business, now part of AT&T).
What it's used for
- Global managed data and connectivity services for enterprise customers across many countries.
Notable
- Part of a major carrier's backbone, not a consumer ISP or web host. One of several sequential
ATGS-MMD-ASASNs; the block dates to a 1993 allocation.
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
Recorded at 18 exchanges in 8 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Equinix Internet Exchange Singapore | Singapore, Singapore | 27.111.228.29 |
| BroadBand Internet eXchange Tokyo | Tokyo, Japan | 101.203.88.156 |
| Hong Kong Internet Exchange | Hong Kong, China | 123.255.91.46 |
| JPIX Tokyo | Tokyo, Japan | 210.171.224.103 |
| DE-CIX Mumbai | Mumbai, India | 103.27.171.240 |
| Megaport IX Sydney | Sydney, Australia | 103.26.68.210 |
| IX Australia (Sydney NSW) | Sydney, Australia | 218.100.52.90 |
| Taipei Internet Exchange (TPIX) | Taipei, Taiwan | 203.163.222.239 |
Transit providers
20 upstream, 60 downstream and 94 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 229 prefixes · 727K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 231 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS2685- Registry name
- ATGS-MMD-AS
- Registrant
- AT&T Enterprises, LLC
- Abuse contact
- abuse@att.net
- Registered
- 1993-06-02
- Last changed
- 2024-12-05
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0.6% valid · 1 valid, 169 with no ROA 2 RPKI-invalid
- ROAs
- 2 authorising AS2687
- ASPA
- no ASPA record
- IRR
- 94% registered · 161 of 172 announcements
- Route objects
- 384 naming AS2687
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