asn.dev

Observed topology

AS22677 CHARTER-22677-MO-IL-C3

Upstreams 1 carry this network
Downstreams 48 this network carries
Adjacent (IPv4) 49
Adjacent (IPv6) 4

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS22677: 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
AS20115Charter Communications LLCResidentialIPv4 IPv6503

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 AS22677 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS25969St. Louis UniversityUnclassifiedIPv4352
AS5656accessU.S./BASENetUnclassifiedIPv4315
AS397019Rocket Connect LLCUnclassifiedIPv4 IPv6311
AS26305SSM Health CareUnclassifiedIPv4 IPv6309
AS32619Schnuck Markets, Inc.UnclassifiedIPv4288
AS396406Maryville University of St LouisUnclassifiedIPv4183
AS33168INLAND IMAGING L.L.C.UnclassifiedIPv4180
AS400734Link Technologies, Inc.HostingIPv4 IPv6125
AS26380MasterCard Technologies LLCUnclassifiedIPv4124
AS11999REJIS CommissionUnclassifiedIPv4123
AS17215Ameren Corp.UnclassifiedIPv4100
AS4917AMDOCS Inc.UnclassifiedIPv499
AS399520Lindenwood UniversityUnclassifiedIPv475
AS54855Interface Security Systems LLCUnclassifiedIPv474
AS19663CASS INFORMATION SYSTEMSUnclassifiedIPv472
AS6428CDMHostingIPv463
AS46194St Louis CITY SCUnclassifiedIPv463
AS397492LUATROMYE001UnclassifiedIPv463
AS33249Zurita Network Technologies LLCUnclassifiedIPv463
AS62999Fort Zumwalt School DistrictUnclassifiedIPv463
AS54223etrailer CorporationUnclassifiedIPv463
AS46338CPC Logistics, IncUnclassifiedIPv463
AS26477Vantage Credit UnionUnclassifiedIPv463
AS54445DierbergsUnclassifiedIPv463
AS396404Anderson HospitalUnclassifiedIPv463
AS63354Saint Louis ZooUnclassifiedIPv463
AS25863Hunter Engineering CompanyUnclassifiedIPv461
AS16489Webster UniversityUnclassifiedIPv460
AS22621UniGroup, INCUnclassifiedIPv460
AS401270TVH Parts Co.UnclassifiedIPv460
AS21811Build-A-Bear Workshop, Inc.UnclassifiedIPv440
AS46760Drury InnsUnclassifiedIPv440
AS400216Parkway School DistrictUnclassifiedIPv436
AS397767Weissman's Theatrical Supplies, Inc.UnclassifiedIPv436
AS22715Salem Internet, Inc.UnclassifiedIPv436
AS2705BJC HEALTH SYSTEMUnclassifiedIPv436
AS63050MiTek Inc.UnclassifiedIPv436
AS397489Matthews Book CompanyUnclassifiedIPv436
AS21607LAZERWARE INCUnclassifiedIPv436
AS46889Clearent LLCUnclassifiedIPv433
AS395041Saint Francis Medical CenterUnclassifiedIPv432
AS30150Exegy IncorporatedUnclassifiedIPv431
AS23401US Tool GroupUnclassifiedIPv419
AS208527Wieland-Werke AGUnclassifiedIPv419
AS400801Bi-State Development Agency of the Missouri-Illinois Metropolitan DistrictUnclassifiedIPv411
AS21749Alberici Group, Inc.UnclassifiedIPv46
AS53697MOHELAUnclassifiedIPv44
AS398926St. Charles Community CollegeUnclassifiedIPv44

Adjacency

Adjacent networks

53 shown

Every AS seen directly next to AS22677 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS20115Charter Communications LLCResidentialIPv4 IPv64,658
AS25969St. Louis UniversityUnclassifiedIPv4352
AS5656accessU.S./BASENetUnclassifiedIPv4315
AS397019Rocket Connect LLCUnclassifiedIPv4 IPv6311
AS26305SSM Health CareUnclassifiedIPv4 IPv6309
AS32619Schnuck Markets, Inc.UnclassifiedIPv4288
AS396406Maryville University of St LouisUnclassifiedIPv4183
AS33168INLAND IMAGING L.L.C.UnclassifiedIPv4180
AS400734Link Technologies, Inc.HostingIPv4 IPv6125
AS26380MasterCard Technologies LLCUnclassifiedIPv4124
AS11999REJIS CommissionUnclassifiedIPv4123
AS17215Ameren Corp.UnclassifiedIPv4100
AS4917AMDOCS Inc.UnclassifiedIPv499
AS399520Lindenwood UniversityUnclassifiedIPv475
AS54855Interface Security Systems LLCUnclassifiedIPv474
AS19663CASS INFORMATION SYSTEMSUnclassifiedIPv472
AS63354Saint Louis ZooUnclassifiedIPv463
AS46194St Louis CITY SCUnclassifiedIPv463
AS397492LUATROMYE001UnclassifiedIPv463
AS33249Zurita Network Technologies LLCUnclassifiedIPv463
AS62999Fort Zumwalt School DistrictUnclassifiedIPv463
AS46338CPC Logistics, IncUnclassifiedIPv463
AS26477Vantage Credit UnionUnclassifiedIPv463
AS54223etrailer CorporationUnclassifiedIPv463
AS54445DierbergsUnclassifiedIPv463
AS6428CDMHostingIPv463
AS396404Anderson HospitalUnclassifiedIPv463
AS25863Hunter Engineering CompanyUnclassifiedIPv461
AS16489Webster UniversityUnclassifiedIPv460
AS22621UniGroup, INCUnclassifiedIPv460
AS401270TVH Parts Co.UnclassifiedIPv460
AS21811Build-A-Bear Workshop, Inc.UnclassifiedIPv440
AS46760Drury InnsUnclassifiedIPv440
AS2705BJC HEALTH SYSTEMUnclassifiedIPv436
AS397767Weissman's Theatrical Supplies, Inc.UnclassifiedIPv436
AS397489Matthews Book CompanyUnclassifiedIPv436
AS400216Parkway School DistrictUnclassifiedIPv436
AS63050MiTek Inc.UnclassifiedIPv436
AS21607LAZERWARE INCUnclassifiedIPv436
AS22715Salem Internet, Inc.UnclassifiedIPv436
AS46889Clearent LLCUnclassifiedIPv433
AS395041Saint Francis Medical CenterUnclassifiedIPv432
AS30150Exegy IncorporatedUnclassifiedIPv431
AS208527Wieland-Werke AGUnclassifiedIPv419
AS23401US Tool GroupUnclassifiedIPv419
AS400801Bi-State Development Agency of the Missouri-Illinois Metropolitan DistrictUnclassifiedIPv411
AS21749Alberici Group, Inc.UnclassifiedIPv46
AS398926St. Charles Community CollegeUnclassifiedIPv44
AS53697MOHELAUnclassifiedIPv44

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 AS22677, 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.

No exchange membership on file. That is not the same as peering nowhere: the dataset records what PCH has collected, and many exchanges publish no participant list at all.

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 2026-08-09 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,164 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.