asn.dev

Observed topology

AS10490 SOUTHERN-CROSSROADS-SOX

Upstreams 7 carry this network
Downstreams 31 this network carries
Adjacent (IPv4) 44
Adjacent (IPv6) 13

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS10490: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv641
AS6939Hurricane Electric LLCTransitIPv4 IPv624
AS11537Internet2UnclassifiedIPv4 IPv613
AS174Cogent Communications, LLCTransitIPv4 IPv613
AS3257GTT Communications Inc.TransitIPv4 IPv67
AS11164Internet2EducationIPv4 IPv64
AS293ESnetUnclassifiedIPv41

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you.

Transit

Downstream networks

inferred

Networks for which AS10490 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS2637Georgia Institute of TechnologyEducationIPv4 IPv6885
AS3479Board of Regents of the University System of GeorgiaEducationIPv4337
AS7212Vanderbilt UniversityEducationIPv4 IPv6231
AS3452University of Alabama at BirminghamEducationIPv4188
AS10364University of Alabama in HuntsvilleEducationIPv4184
AS26335Middle Tennessee State UniversityUnclassifiedIPv4177
AS3450University of TennesseeEducationIPv4176
AS40204Jacksonville State UniversityUnclassifiedIPv4142
AS21517Kennesaw State UniversityUnclassifiedIPv4136
AS29972Morehouse School of MedicineUnclassifiedIPv4124
AS3464Alabama Supercomputer AuthorityEducationIPv4 IPv6121
AS398034Clark Atlanta UniversityUnclassifiedIPv4120
AS12173The University of AlabamaUnclassifiedIPv4102
AS398940University of South AlabamaUnclassifiedIPv496
AS3512Emory UniversityEducationIPv477
AS18682Alabama A&M UniversityUnclassifiedIPv470
AS6112Auburn UniversityEducationIPv463
AS10631Georgia State UniversityEducationIPv462
AS36441University of GeorgiaUnclassifiedIPv457
AS2722CULR, LLCUnclassifiedIPv4 IPv655
AS26883Morehouse CollegeUnclassifiedIPv452
AS393529Vanderbilt University Medical CenterUnclassifiedIPv4 IPv647
AS27422Tennessee State UniversityUnclassifiedIPv439
AS14048The University of MemphisUnclassifiedIPv430
AS50Oak Ridge National LaboratoryUnclassifiedIPv412
AS401680Tuskegee UniversityUnclassifiedIPv48
AS12005University of South CarolinaUnclassifiedIPv47
AS33669Meharry Medical CollegeUnclassifiedIPv46
AS33600Tennessee Technological UniversityUnclassifiedIPv46
AS21784The Robert W. Woodruff Library of the Atlanta University Center, Inc.UnclassifiedIPv46
AS394570Alabama State UniversityUnclassifiedIPv4 IPv66

Adjacency

Adjacent networks

57 shown

Every AS seen directly next to AS10490 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv61,481
AS11537Internet2UnclassifiedIPv4 IPv61,239
AS2637Georgia Institute of TechnologyEducationIPv4 IPv6885
AS6939Hurricane Electric LLCTransitIPv4 IPv6666
AS3479Board of Regents of the University System of GeorgiaEducationIPv4578
AS3257GTT Communications Inc.TransitIPv4 IPv6460
AS174Cogent Communications, LLCTransitIPv4 IPv6428
AS11164Internet2EducationIPv4 IPv6338
AS40220Virginia Polytechnic Institute and State Univ.UnclassifiedIPv4294
AS3450University of TennesseeEducationIPv4 IPv6260
AS7212Vanderbilt UniversityEducationIPv4 IPv6231
AS14048The University of MemphisUnclassifiedIPv4213
AS2722CULR, LLCUnclassifiedIPv4 IPv6213
AS293ESnetUnclassifiedIPv4204
AS3452University of Alabama at BirminghamEducationIPv4188
AS10364University of Alabama in HuntsvilleEducationIPv4184
AS26335Middle Tennessee State UniversityUnclassifiedIPv4177
AS3464Alabama Supercomputer AuthorityEducationIPv4 IPv6151
AS40204Jacksonville State UniversityUnclassifiedIPv4142
AS21517Kennesaw State UniversityUnclassifiedIPv4136
AS29972Morehouse School of MedicineUnclassifiedIPv4124
AS398034Clark Atlanta UniversityUnclassifiedIPv4120
AS12173The University of AlabamaUnclassifiedIPv4102
AS398940University of South AlabamaUnclassifiedIPv496
AS3480Board of Regents of the University System of GeorgiaEducationIPv490
AS3512Emory UniversityEducationIPv477
AS18682Alabama A&M UniversityUnclassifiedIPv470
AS6112Auburn UniversityEducationIPv463
AS10631Georgia State UniversityEducationIPv462
AS36441University of GeorgiaUnclassifiedIPv457
AS26883Morehouse CollegeUnclassifiedIPv452
AS393529Vanderbilt University Medical CenterUnclassifiedIPv4 IPv647
AS27422Tennessee State UniversityUnclassifiedIPv439
AS15029U.S. Department of Health & Human ServicesUnclassifiedIPv414
AS50Oak Ridge National LaboratoryUnclassifiedIPv412
AS27355Spelman CollegeUnclassifiedIPv411
AS401680Tuskegee UniversityUnclassifiedIPv48
AS35280F5 Networks SARLHostingIPv47
AS40111Parker FiberNet, LLCUnclassifiedIPv47
AS12005University of South CarolinaUnclassifiedIPv47
AS21784The Robert W. Woodruff Library of the Atlanta University Center, Inc.UnclassifiedIPv46
AS33669Meharry Medical CollegeUnclassifiedIPv46
AS33600Tennessee Technological UniversityUnclassifiedIPv46
AS394570Alabama State UniversityUnclassifiedIPv4 IPv66

Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Interconnection

Exchange presence

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS10490, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider to carry traffic between them, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's own page, with its peering LANs and every other network recorded on it. Recorded at 1 exchange across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
Digital Realty Atlanta Internet ExchangeAtlanta, United States206.126.110.11175

Unlike the tables above, this is recorded rather than inferred. An address on a peering LAN is at that exchange by definition. Two carve-outs all the same. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. And an absent exchange means PCH has no record of it, not that the network is not there.

Provenance

Where this comes from

Derived from routing tables collected at 2026-08-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.02M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.

Exchange presence comes from a separate dataset: the directory collected 2026-08-08 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,137 recorded member ports, licensed CC BY-NC-SA 3.0.

PeeringDB is the better-known directory and is deliberately not the source here: its acceptable-use policy forbids the bulk storage this needs. The two answer different questions anyway. PeeringDB reports what an operator declares about itself; this reports what PCH has recorded.