asn.dev

Observed topology

AS16921 INTELIGLOBE-1

Upstreams 21 carry this network
Downstreams 3 this network carries
Adjacent (IPv4) 23
Adjacent (IPv6) 18

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS16921: 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 IPv6446
AS3356Level 3 Parent, LLCTransitIPv4 IPv6440
AS22927Telefonica de ArgentinaMobileIPv4 IPv6330
AS6939Hurricane Electric LLCTransitIPv4 IPv6219
AS14259Gtd Internet S.A.ResidentialIPv4 IPv6156
AS1299Arelion Sweden ABTransitIPv4 IPv6141
AS14840BR.Digital TelecomUnclassifiedIPv4 IPv6129
AS28188Pronto Net Ltda.UnclassifiedIPv4 IPv6129
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv6107
AS26615TIM S/AMobileIPv4 IPv6105
AS4230CLARO S.A.ResidentialIPv4 IPv694
AS10429TELEFONICA BRASIL S.AResidentialIPv4 IPv693
AS52468UFINET PANAMA S.A.UnclassifiedIPv4 IPv693
AS6327Shaw CommunicationsResidentialIPv4 IPv691
AS19332COORDINADORA DE CARRIER'S, S.A. DE C.V.UnclassifiedIPv4 IPv665
AS18678INTERNEXA S.A. E.S.PUnclassifiedIPv461
AS8220COLT Technology Services Group LimitedHostingIPv459
AS16814NSS S.A.UnclassifiedIPv418
AS24482SG.GSHostingIPv4 IPv611
AS57463NetIX Communications JSCUnclassifiedIPv46
AS37721Virtual Technologies & SolutionsResidentialIPv46

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 AS16921 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS270066ASOCIACION DE LOS TESTIGOS DE JEHOVAUnclassifiedIPv4 IPv687
AS36224HCL AMERICA INCUnclassifiedIPv41
AS273732TATA COMMUNICATIONS COMUNICACOES E MULTIMIDIA (BR)UnclassifiedIPv61

Adjacency

Adjacent networks

41 shown

Every AS seen directly next to AS16921 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv6446
AS3356Level 3 Parent, LLCTransitIPv4 IPv6441
AS22927Telefonica de ArgentinaMobileIPv4 IPv6408
AS6939Hurricane Electric LLCTransitIPv4 IPv6219
AS14259Gtd Internet S.A.ResidentialIPv4 IPv6156
AS1299Arelion Sweden ABTransitIPv4 IPv6141
AS14840BR.Digital TelecomUnclassifiedIPv4 IPv6129
AS28188Pronto Net Ltda.UnclassifiedIPv4 IPv6129
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv6107
AS26615TIM S/AMobileIPv4 IPv6105
AS10429TELEFONICA BRASIL S.AResidentialIPv4 IPv694
AS4230CLARO S.A.ResidentialIPv4 IPv694
AS52468UFINET PANAMA S.A.UnclassifiedIPv4 IPv693
AS6327Shaw CommunicationsResidentialIPv4 IPv691
AS270066ASOCIACION DE LOS TESTIGOS DE JEHOVAUnclassifiedIPv4 IPv687
AS19332COORDINADORA DE CARRIER'S, S.A. DE C.V.UnclassifiedIPv4 IPv665
AS18678INTERNEXA S.A. E.S.PUnclassifiedIPv461
AS8220COLT Technology Services Group LimitedHostingIPv459
AS16814NSS S.A.UnclassifiedIPv427
AS24482SG.GSHostingIPv4 IPv611
AS57463NetIX Communications JSCUnclassifiedIPv46
AS37721Virtual Technologies & SolutionsResidentialIPv46
AS273732TATA COMMUNICATIONS COMUNICACOES E MULTIMIDIA (BR)UnclassifiedIPv61
AS36224HCL AMERICA INCUnclassifiedIPv41

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 AS16921, 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 4 exchanges across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
IX.br (PTT.br) São PauloSão Paulo, Brazil187.16.223.1122,690
IX.br (PTT.br) FortalezaFortaleza, Brazil45.68.75.22920
IX.br (PTT.br) BelémBelém, Brazil187.16.195.6162
IX.br (PTT.br) CuiabáCuiabá, Brazil187.16.203.5459

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.