asn.dev

Observed topology

AS15108 ALLO-COMM

Upstreams 4 carry this network
Downstreams 28 this network carries
Adjacent (IPv4) 32
Adjacent (IPv6) 6

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS15108: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv63,278
AS174Cogent Communications, LLCTransitIPv4 IPv6687
AS1299Arelion Sweden ABTransitIPv4 IPv6441
AS53767iCastCenterHostingIPv411

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 AS15108 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS11714Network NebraskaEducationIPv4413
AS7896The Board of Regents of the University of NebraskaEducationIPv4282
AS13659INTERTECH CORPORATIONUnclassifiedIPv4256
AS54304Weld County School District SixUnclassifiedIPv4215
AS22768SYNERGY BROADBANDUnclassifiedIPv4 IPv6103
AS46966City of Grand IslandUnclassifiedIPv4 IPv698
AS11511Crete Carrier CorporationUnclassifiedIPv4 IPv687
AS17046Action Communications, Inc.UnclassifiedIPv467
AS400077Pueblo City-County Library DistrictUnclassifiedIPv467
AS54168CORNHUSKER BANKUnclassifiedIPv467
AS16615-Reserved AS-UnclassifiedIPv467
AS397405Lincoln Electric SystemUnclassifiedIPv467
AS53663ADAMS BANK & TRUSTUnclassifiedIPv467
AS397979AirmaxUnclassifiedIPv466
AS46190Kingman Regional Medical CenterUnclassifiedIPv465
AS394934Union Bank and Trust CompanyUnclassifiedIPv464
AS400621Yuma Union High School District #70UnclassifiedIPv463
AS397632Mohave County AZUnclassifiedIPv455
AS398555Concordia University NebraskaUnclassifiedIPv454
AS396372Great Plains HealthUnclassifiedIPv454
AS46802Gladiator Technologies, LLCUnclassifiedIPv451
AS20005SANDHILLS PUBLISHINGUnclassifiedIPv451
AS54821Alpine Connective LLCResidentialIPv439
AS30359Avid Communications, LLCUnclassifiedIPv432
AS53783Memorial Health Care SystemsUnclassifiedIPv427
AS397891Columbus Community Hospital, Inc.UnclassifiedIPv413
AS393761West Haymarket Joint Public AgencyUnclassifiedIPv41
AS2769State of Nebraska / Office of the CIOUnclassifiedIPv41

Adjacency

Adjacent networks

38 shown

Every AS seen directly next to AS15108 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv65,300
AS174Cogent Communications, LLCTransitIPv4 IPv61,127
AS1299Arelion Sweden ABTransitIPv4 IPv6682
AS11714Network NebraskaEducationIPv4567
AS7896The Board of Regents of the University of NebraskaEducationIPv4343
AS13659INTERTECH CORPORATIONUnclassifiedIPv4256
AS54304Weld County School District SixUnclassifiedIPv4215
AS22768SYNERGY BROADBANDUnclassifiedIPv4 IPv6103
AS46966City of Grand IslandUnclassifiedIPv4 IPv698
AS11511Crete Carrier CorporationUnclassifiedIPv4 IPv687
AS17046Action Communications, Inc.UnclassifiedIPv467
AS400077Pueblo City-County Library DistrictUnclassifiedIPv467
AS54168CORNHUSKER BANKUnclassifiedIPv467
AS53663ADAMS BANK & TRUSTUnclassifiedIPv467
AS397405Lincoln Electric SystemUnclassifiedIPv467
AS16615-Reserved AS-UnclassifiedIPv467
AS397979AirmaxUnclassifiedIPv466
AS46190Kingman Regional Medical CenterUnclassifiedIPv465
AS394934Union Bank and Trust CompanyUnclassifiedIPv464
AS400621Yuma Union High School District #70UnclassifiedIPv463
AS397632Mohave County AZUnclassifiedIPv455
AS396372Great Plains HealthUnclassifiedIPv454
AS398555Concordia University NebraskaUnclassifiedIPv454
AS46802Gladiator Technologies, LLCUnclassifiedIPv451
AS20005SANDHILLS PUBLISHINGUnclassifiedIPv451
AS54821Alpine Connective LLCResidentialIPv439
AS30359Avid Communications, LLCUnclassifiedIPv432
AS53783Memorial Health Care SystemsUnclassifiedIPv427
AS53767iCastCenterHostingIPv415
AS397891Columbus Community Hospital, Inc.UnclassifiedIPv413
AS393761West Haymarket Joint Public AgencyUnclassifiedIPv41
AS2769State of Nebraska / Office of the CIOUnclassifiedIPv41

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 AS15108, 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 2 exchanges across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
Interconnection eXchange DenverDenver, United States206.53.175.8692
Ninja-IX PhoenixPhoenix, United States206.41.105.7163

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.