asn.dev

Observed topology

AS11992 LIBERTY-MOB-

Unclassified ARIN

Upstreams 2 carry this network
Downstreams 19 this network carries
Adjacent (IPv4) 21
Adjacent (IPv6) 7
Upstream graph Who carries AS11992, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS11992 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS11992: 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
AS23520Columbus Networks USA, Inc.ResidentialIPv42,353
AS7018AT&T Enterprises, LLCResidentialIPv4 IPv660

Transit

Downstream networks

All 19

Networks for which AS11992 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS14638Liberty Communications of Puerto Rico LLCUnclassifiedIPv4 IPv61,001
AS11653Puerto Rico WebmastersUnclassifiedIPv4 IPv6177
AS32189SAGRADOUnclassifiedIPv4106
AS399599G&B Networks SolutionsUnclassifiedIPv4 IPv691
AS401007C&C Wireless Puerto RicoUnclassifiedIPv4 IPv690
AS14974Virtual Inc.UnclassifiedIPv476
AS35892DREYFOUS & ASSOCIATESUnclassifiedIPv4 IPv672
AS22888Sistema Universitario Ana G. MendezUnclassifiedIPv470
AS396082COSOTNET INCUnclassifiedIPv438
AS394963Multinational Life Insurance CompanyUnclassifiedIPv426

All 19 downstreams →

Adjacency

Adjacent networks

All 21

Every AS seen directly next to AS11992 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS23520Columbus Networks USA, Inc.ResidentialIPv43,799
AS14638Liberty Communications of Puerto Rico LLCUnclassifiedIPv4 IPv61,029
AS7018AT&T Enterprises, LLCResidentialIPv4 IPv6479
AS11653Puerto Rico WebmastersUnclassifiedIPv4 IPv6177
AS32189SAGRADOUnclassifiedIPv4106
AS399599G&B Networks SolutionsUnclassifiedIPv4 IPv691
AS401007C&C Wireless Puerto RicoUnclassifiedIPv4 IPv690
AS14974Virtual Inc.UnclassifiedIPv476
AS35892DREYFOUS & ASSOCIATESUnclassifiedIPv4 IPv672
AS22888Sistema Universitario Ana G. MendezUnclassifiedIPv470

All 21 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-12 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.21M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

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. 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.

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