asn.dev

Observed topology

AS11776 ATLANTICBB-JOHNSTOWN

Upstreams 4 carry this network
Downstreams 26 this network carries
Adjacent (IPv4) 30
Adjacent (IPv6) 5

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS11776: 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
AS174Cogent Communications, LLCTransitIPv4 IPv643,455
AS1299Arelion Sweden ABTransitIPv4 IPv636,238
AS2914NTT America, Inc.TransitIPv4 IPv620,957
AS6939Hurricane Electric LLCTransitIPv4 IPv611,070

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 AS11776 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS36240Communications Unlimited Inc.UnclassifiedIPv4180
AS62514Venus Telephone CorporationUnclassifiedIPv4150
AS397606Crowsnest BroadbandResidentialIPv4137
AS40593Cloud Compliance SolutionsUnclassifiedIPv4120
AS36857Freudenberg-NOK General ParternershipUnclassifiedIPv4120
AS401023Kwikbit Internet, Inc.UnclassifiedIPv4 IPv690
AS19357New Enterprise Stone & Lime CompanyUnclassifiedIPv476
AS35978GPB Communications IncUnclassifiedIPv466
AS397038Broward CollegeUnclassifiedIPv461
AS18751Basketball Properties LtdUnclassifiedIPv460
AS16993Cumberland Farms, Inc.UnclassifiedIPv460
AS19765IBM CorporationUnclassifiedIPv457
AS11370UltraWISP, LLCResidentialIPv457
AS399295Somerset Trust CompanyUnclassifiedIPv455
AS55118Value Drug Company Inc.UnclassifiedIPv452
AS395790SOUTHERN MARYLAND ELECTRIC COOPERATIVE INCUnclassifiedIPv451
AS40742UPMCUnclassifiedIPv444
AS398427Markley Network Services, LLCHostingIPv442
AS397488New Albany-Plain Local School DistrictUnclassifiedIPv441
AS398312Grandview Heights SchoolsUnclassifiedIPv433
AS19917Mohegan SunUnclassifiedIPv427
AS394109CFH CABLE INCResidentialIPv424
AS23041Pennsylvania Highlands Community CollegeUnclassifiedIPv423
AS53796Miami Children's HospitalUnclassifiedIPv422
AS30012Universal Music Group, INC.UnclassifiedIPv48
AS398320Talbot County Department of Emergency ServicesUnclassifiedIPv41

Adjacency

Adjacent networks

35 shown

Every AS seen directly next to AS11776 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv644,303
AS1299Arelion Sweden ABTransitIPv4 IPv636,612
AS2914NTT America, Inc.TransitIPv4 IPv621,518
AS6939Hurricane Electric LLCTransitIPv4 IPv611,191
AS398427Markley Network Services, LLCHostingIPv4289
AS36240Communications Unlimited Inc.UnclassifiedIPv4180
AS62514Venus Telephone CorporationUnclassifiedIPv4150
AS397606Crowsnest BroadbandResidentialIPv4137
AS36857Freudenberg-NOK General ParternershipUnclassifiedIPv4120
AS40593Cloud Compliance SolutionsUnclassifiedIPv4120
AS401023Kwikbit Internet, Inc.UnclassifiedIPv4 IPv690
AS19357New Enterprise Stone & Lime CompanyUnclassifiedIPv476
AS35978GPB Communications IncUnclassifiedIPv466
AS397038Broward CollegeUnclassifiedIPv461
AS16993Cumberland Farms, Inc.UnclassifiedIPv460
AS18751Basketball Properties LtdUnclassifiedIPv460
AS19765IBM CorporationUnclassifiedIPv457
AS11370UltraWISP, LLCResidentialIPv457
AS399295Somerset Trust CompanyUnclassifiedIPv455
AS55118Value Drug Company Inc.UnclassifiedIPv452
AS395790SOUTHERN MARYLAND ELECTRIC COOPERATIVE INCUnclassifiedIPv451
AS40742UPMCUnclassifiedIPv444
AS397488New Albany-Plain Local School DistrictUnclassifiedIPv441
AS398312Grandview Heights SchoolsUnclassifiedIPv433
AS19917Mohegan SunUnclassifiedIPv427
AS394109CFH CABLE INCResidentialIPv424
AS23041Pennsylvania Highlands Community CollegeUnclassifiedIPv423
AS53796Miami Children's HospitalUnclassifiedIPv422
AS30012Universal Music Group, INC.UnclassifiedIPv48
AS398320Talbot County Department of Emergency ServicesUnclassifiedIPv41

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 AS11776, 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
Pittsburgh Internet ExchangePittsburgh, United States206.71.141.1645

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.