asn.dev

Observed topology

AS131429 MOBIFONE-AS-VN MOBIFONE Corporation

Upstreams 13 carry this network
Downstreams 15 this network carries
Adjacent (IPv4) 27
Adjacent (IPv6) 20

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS131429: 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
AS3356Level 3 Parent, LLCTransitIPv4 IPv612,136
AS1299Arelion Sweden ABTransitIPv4 IPv65,000
AS2914NTT America, Inc.TransitIPv4 IPv64,428
AS6939Hurricane Electric LLCTransitIPv4 IPv63,084
AS10099China Unicom GlobalUnclassifiedIPv4 IPv62,752
AS9304HGC Global Communications LimitedHostingIPv4 IPv62,302
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv61,440
AS18403FPT Telecom CompanyResidentialIPv4 IPv61,385
AS7552Viettel GroupMobileIPv41,163
AS45899VNPT CorpMobileIPv4 IPv61,114
AS4229Zenlayer IncHostingIPv4 IPv6610
AS24482SG.GSHostingIPv4 IPv6324
AS9002RETN LimitedUnclassifiedIPv4 IPv6190

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 AS131429 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS55309Minh Tu Telecom Limited CompanyUnclassifiedIPv4 IPv6699
AS56141Danang ICT Infrastructure Development CenterUnclassifiedIPv4 IPv6348
AS13335Cloudflare, Inc.HostingIPv4 IPv6285
AS151911VERICHAINS LIMITEDUnclassifiedIPv4 IPv6224
AS135964RVC Rong Viet Trade Service Telecom Company LimitedUnclassifiedIPv4195
AS131440ZINGPLAY VIETNAM COMPANY LIMITEDUnclassifiedIPv4120
AS56160VIETNIX Solution and Technology Joint Stock CompanyUnclassifiedIPv4118
AS152940TTC TELECOM SERVICE TRADING INVESTMENT COMPANY LIMITEDUnclassifiedIPv4 IPv6117
AS149111TEDEV TECHNOLOGICAL DEVELOPMENT COMPANY LIMITEDUnclassifiedIPv4 IPv697
AS131386Long Van System Solution JSCUnclassifiedIPv460
AS63736Nam A Commercial Joint Stock BankUnclassifiedIPv460
AS140764CSD Group Technology JSC.UnclassifiedIPv460
AS63731TIEN PHAT TECHNOLOGY CORPORATIONUnclassifiedIPv442
AS396986Bytedance Inc.HostingIPv633
AS153428TTP GROUP TECHNOLOGY TELECOMMUNICATION JOINT STOCK COMPANYUnclassifiedIPv418

Adjacency

Adjacent networks

47 shown

Every AS seen directly next to AS131429 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv612,585
AS1299Arelion Sweden ABTransitIPv4 IPv66,228
AS2914NTT America, Inc.TransitIPv4 IPv64,919
AS6939Hurricane Electric LLCTransitIPv4 IPv63,186
AS10099China Unicom GlobalUnclassifiedIPv4 IPv62,752
AS9304HGC Global Communications LimitedHostingIPv4 IPv62,407
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv61,853
AS18403FPT Telecom CompanyResidentialIPv4 IPv61,529
AS45899VNPT CorpMobileIPv4 IPv61,330
AS7552Viettel GroupMobileIPv41,167
AS55309Minh Tu Telecom Limited CompanyUnclassifiedIPv4 IPv61,162
AS4229Zenlayer IncHostingIPv4 IPv6610
AS56141Danang ICT Infrastructure Development CenterUnclassifiedIPv4 IPv6348
AS24482SG.GSHostingIPv4 IPv6339
AS13335Cloudflare, Inc.HostingIPv4 IPv6285
AS135964RVC Rong Viet Trade Service Telecom Company LimitedUnclassifiedIPv4264
AS131440ZINGPLAY VIETNAM COMPANY LIMITEDUnclassifiedIPv4238
AS151911VERICHAINS LIMITEDUnclassifiedIPv4 IPv6224
AS9002RETN LimitedUnclassifiedIPv4 IPv6190
AS152940TTC TELECOM SERVICE TRADING INVESTMENT COMPANY LIMITEDUnclassifiedIPv4 IPv6121
AS56160VIETNIX Solution and Technology Joint Stock CompanyUnclassifiedIPv4118
AS149111TEDEV TECHNOLOGICAL DEVELOPMENT COMPANY LIMITEDUnclassifiedIPv4 IPv697
AS63731TIEN PHAT TECHNOLOGY CORPORATIONUnclassifiedIPv4 IPv679
AS131386Long Van System Solution JSCUnclassifiedIPv460
AS63736Nam A Commercial Joint Stock BankUnclassifiedIPv460
AS140764CSD Group Technology JSC.UnclassifiedIPv460
AS396986Bytedance Inc.HostingIPv633
AS153428TTP GROUP TECHNOLOGY TELECOMMUNICATION JOINT STOCK COMPANYUnclassifiedIPv418

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 AS131429, 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 2 exchanges across 2 countries and 1 region.

ExchangeLocationTheir addressMember ports
BroadBand Internet eXchange TokyoTokyo, Japan101.203.90.212359
BroadBand Internet eXchange SingaporeSingapore, Singapore103.231.152.70151

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.