asn.dev

Upstream networks

AS577 BACOM

Mobile ARIN

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS577: 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
AS1403EBOXResidentialIPv4 IPv632,604
AS1299Arelion Sweden ABTransitIPv4 IPv624,932
AS6939Hurricane Electric LLCTransitIPv4 IPv613,530
AS3356Level 3 Parent, LLCTransitIPv4 IPv611,118
AS174Cogent Communications, LLCTransitIPv4 IPv69,198
AS2914NTT America, Inc.TransitIPv4 IPv67,784
AS3257GTT Communications Inc.TransitIPv4 IPv67,619
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv63,781
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv63,271
AS1273IDDQD-ASBusinessIPv4 IPv63,168
AS852TELUS Communications Inc.ResidentialIPv4 IPv61,641
AS3303Swisscom (Schweiz) AGResidentialIPv41,577
AS2497Internet Initiative Japan Inc.UnclassifiedIPv41,574
AS6830Liberty Global Europe Holding B.V.ResidentialIPv41,256
AS4637Telstra GlobalUnclassifiedIPv41,254
AS15296Cybera IncUnclassifiedIPv464
AS6461Zayo BandwidthTransitIPv4 IPv632
AS701Verizon BusinessResidentialIPv4 IPv68
AS33891Core-Backbone GmbHHostingIPv67
AS6327Shaw CommunicationsResidentialIPv43
AS7311Frontier Networks IncUnclassifiedIPv42
AS395127Sunwire Inc.ResidentialIPv41

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.

Derived from routing tables collected at 2026-10-14 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.25M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.