AS2686 — ATGS-MMD-AS - AT&T Enterprises, LLC

AS2686 announces 94 IPv4 prefixes covering 1,370,368 addresses and 1 IPv6 prefixes.

About this network

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-AS ASNs; the block dates to a 1993 allocation. This ASN announces a large IPv4 footprint.

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

Announced prefixes

• 15.24.76.0/23
• 15.24.86.0/24
• 15.24.96.0/23
• 15.24.137.0/24
• 15.24.138.0/24
• 32.42.0.0/18
• 32.42.64.0/19
• 32.42.100.0/22
• 32.42.104.0/21
• 32.42.112.0/20
• 32.58.0.0/16
• 32.64.160.0/22
• 32.105.0.0/16
• 32.106.0.0/16
• 32.107.0.0/18
• 32.112.0.0/15
• 32.116.0.0/16
• 32.139.235.0/24
• 32.139.237.0/24
• 32.239.0.0/16
• 62.200.0.0/17
• 62.200.128.0/18
• 62.200.192.0/21
• 62.200.200.0/22
• 62.200.206.0/23
• 62.200.208.0/20
• 62.200.224.0/19
• 91.212.78.0/24
• 129.36.0.0/16
• 139.92.0.0/16
• 149.235.22.0/24
• 152.158.0.0/16
• 185.136.0.0/24
• 185.136.3.0/24
• 192.48.5.0/24
• 192.48.22.0/24
• 192.56.148.0/23
• 192.56.168.0/23
• 192.56.172.0/24
• 192.56.175.0/24
• 192.56.184.0/23
• 192.56.190.0/24
• 192.56.192.0/23
• 192.56.200.0/21
• 192.56.224.0/23
• 192.56.226.0/24
• 192.56.228.0/23
• 192.56.230.0/24
• 192.56.233.0/24
• 192.56.235.0/24
• 192.56.236.0/24
• 192.56.238.0/23
• 192.56.240.0/24
• 192.76.195.0/24
• 192.76.220.0/22
• 192.158.34.0/23
• 192.158.54.0/23
• 194.10.0.0/16
• 194.105.112.0/23
• 194.161.200.0/23
• 194.194.0.0/16
• 194.196.0.0/19
• 194.196.32.0/22
• 194.196.36.0/23
• 194.196.40.0/21
• 194.196.48.0/20
• 194.196.64.0/18
• 194.196.128.0/17
• 194.242.64.0/19
• 195.33.0.0/19
• 195.33.32.0/22
• 195.33.48.0/20
• 195.33.64.0/18
• 195.33.128.0/18
• 195.75.0.0/19
• 195.75.32.0/22
• 195.75.38.0/23
• 195.75.40.0/21
• 195.75.48.0/20
• 195.75.64.0/18
• 195.75.128.0/17
• 195.79.0.0/16
• 195.183.0.0/16
• 195.212.0.0/16
• 206.193.170.0/24
• 206.193.172.0/24
• 212.1.160.0/19
• 213.62.0.0/20
• 213.62.16.0/21
• 213.62.26.0/23
• 213.62.28.0/22
• 213.62.32.0/19
• 213.62.64.0/18
• 213.62.128.0/17
• 2001:1be0::/32

Upstream networks

• AS6939 Hurricane Electric LLC
• AS1299 Arelion Sweden AB
• AS2914 NTT America, Inc.
• AS174 Cogent Communications, LLC
• AS9002 RETN Limited
• AS7018 AT&T Enterprises, LLC
• AS3257 GTT Communications Inc.
• AS3356 Level 3 Parent, LLC
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions
• AS1836 green.ch AG
• AS34019 Hivane Association
• AS3303 Swisscom (Schweiz) AG
• AS8551 Bezeq International Ltd.
• AS38001 NewMedia Express Pte Ltd
• AS17639 Converge ICT Solutions Inc.
• AS42708 Glesys Sweden AB
• AS12552 GlobalConnect AB
• AS37100 SEACOM Limited
• AS12389 PJSC Rostelecom
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS50628 Leonix Telecom SAS
• AS34927 iFog GmbH
• AS8280 SYNAPSECOM S.A. Provider of Telecommunications and Internet Services
• AS6830 Liberty Global Europe Holding B.V.

Downstream networks

• AS4249 Eli Lilly and Company
• AS3917 Shell Information Technology International B.V.
• AS1341 Rockwell Collins, Inc.
• AS2687 AT&T Enterprises, LLC
• AS2154 HP Inc.
• AS11857 Money Services, Inc.
• AS2155 HP Inc.
• AS14381 Caterpillar, Inc.
• AS21272 Danone SA
• AS40934 Fortinet Inc.
• AS13778 Johnson & Johnson
• AS36180 Cisco IoT
• AS59453 Electrolux Italia SpA
• AS397074 Marshalls
• AS4468 AT&T Enterprises, LLC
• AS8116 Guidant Corporation
• AS12422 Evonik Industries AG
• AS134536 ATT NBE Equinix London
• AS12213 Centersquare
• AS395516 Teradata Operations, Inc.
• AS16466 Avaya LLC
• AS4583 West Publishing Corporation
• AS26379 Agilent Technologies, Inc.
• AS26485 Six Continents Hotels, Inc.
• AS6072 Unisys Corporation

Adjacent networks

• AS6939 Hurricane Electric LLC
• AS1299 Arelion Sweden AB
• AS4249 Eli Lilly and Company
• AS174 Cogent Communications, LLC
• AS2914 NTT America, Inc.
• AS7018 AT&T Enterprises, LLC
• AS3917 Shell Information Technology International B.V.
• AS3257 GTT Communications Inc.
• AS9002 RETN Limited
• AS3356 Level 3 Parent, LLC
• AS2687 AT&T Enterprises, LLC
• AS2154 HP Inc.
• AS2155 HP Inc.
• AS1341 Rockwell Collins, Inc.
• AS37721 Virtual Technologies & Solutions
• AS50628 Leonix Telecom SAS
• AS1836 green.ch AG
• AS8280 SYNAPSECOM S.A. Provider of Telecommunications and Internet Services
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS42708 Glesys Sweden AB
• AS37100 SEACOM Limited
• AS12552 GlobalConnect AB
• AS24482 SG.GS
• AS38001 NewMedia Express Pte Ltd
• AS34019 Hivane Association

Routing security

• RPKI: 2 valid, 0 invalid and 176 not-found announcements; 5 ROAs.
• ASPA: none published.
• IRR: 93% of announcements registered; 373 route objects.
• Listed in as-sets: AS-31576-PEERS, AS-47377-PEERS, AS-ACNAIX, AS-ATRATO:AS-PEERS, AS-BNIX, AS-BSVE:AS-LINX-PEERS-1, AS-BSVE:AS-LINX-PEERS-2, AS-BTTELESPANIX, AS-CYPIX, AS-DIGINETITCC-PEERS, AS-EWSK-SIX, AS-FRANCEIX-MRS-LIST, AS-FRANCEIX-PAR-LIST, AS-GRIX-ATH, AS-GRIX-ATH-RS, AS-HKTPEER, AS-IGNEMEA, AS-IIXPEERS, AS-IS-LOC, AS-IS-PEERS, AS-IXREGIO, AS-LIQUID-LINXPEERS, AS-MANDA-AMSIX-PEERS-V4, AS-MANDA-AMSIX-PEERS-V6, AS-MANDA-DECIX-PEERS-V4.

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• LINX LON1 — London, United Kingdom
• AMS-IX Amsterdam — Amsterdam, Netherlands
• NAPAfrica IX Johannesburg — Johannesburg, South Africa
• France-IX Paris — Paris, France
• TPIX - Internet Exchange — Warsaw, Poland
• Milan Internet Exchange — Milan, Italy
• SwissIX — Zurich, Switzerland
• NIX.CZ - Neutral Internet eXchange for the Czech Republic — Prague, Czech Republic
• Vienna Internet Exchange — Vienna, Austria
• ESpanix Madrid Lower LAN — Madrid, Spain
• France-IX Marseille — Marseille, France
• Budapest Internet Exchange — Budapest, Hungary
• Internet Neutral Exchange Association CLG - LAN1 — Dublin, Ireland
• Belgian National Internet Exchange — Brussels, Belgium
• Greek Internet Exchange - Athens — Athens, Greece
• Internet Neutral Exchange Association CLG - LAN2 — Dublin, Ireland
• DE-CIX Lisbon — Lisbon, Portugal
• Netnod Sundsvall- Gävle — Sundsvall, Sweden