asn.dev

Observed topology

AS4777 APNIC-COLO Asia Pacific Network Information Centre

Upstreams 7 carry this network
Downstreams 5 this network carries
Adjacent (IPv4) 15
Adjacent (IPv6) 12

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS4777: 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
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv689
AS2497Internet Initiative Japan Inc.UnclassifiedIPv4 IPv646
AS6939Hurricane Electric LLCTransitIPv4 IPv625
AS2516KDDI CORPORATIONMobileIPv415
AS2500WIDE ProjectUnclassifiedIPv4 IPv612
AS134148SingARENUnclassifiedIPv4 IPv66
AS24482SG.GSHostingIPv4 IPv62

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 AS4777 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS45192ASN for APNICTRAINING LAB DCUnclassifiedIPv4 IPv697
AS18368Asia Pacific Network Information CentreHostingIPv4 IPv684
AS18366Asia Pacific Network Information CentreUnclassifiedIPv4 IPv615
AS18369Asia Pacific Network Information CentreUnclassifiedIPv4 IPv614
AS18367Asia Pacific Network Information CentreUnclassifiedIPv48

Adjacency

Adjacent networks

27 shown

Every AS seen directly next to AS4777 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv6200
AS45192ASN for APNICTRAINING LAB DCUnclassifiedIPv4 IPv697
AS2497Internet Initiative Japan Inc.UnclassifiedIPv4 IPv686
AS18368Asia Pacific Network Information CentreHostingIPv4 IPv684
AS6939Hurricane Electric LLCTransitIPv4 IPv666
AS2516KDDI CORPORATIONMobileIPv424
AS18366Asia Pacific Network Information CentreUnclassifiedIPv4 IPv615
AS18369Asia Pacific Network Information CentreUnclassifiedIPv4 IPv614
AS2500WIDE ProjectUnclassifiedIPv4 IPv612
AS134148SingARENUnclassifiedIPv4 IPv611
AS18367Asia Pacific Network Information CentreUnclassifiedIPv48
AS38001NewMedia Express Pte LtdHostingIPv4 IPv65
AS24482SG.GSHostingIPv4 IPv64
AS57463NetIX Communications JSCUnclassifiedIPv43
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv62

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 AS4777, 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 2 countries and 1 region.

ExchangeLocationTheir addressMember ports
Equinix Internet Exchange SingaporeSingapore, Singapore27.111.230.172490
JPIX TokyoTokyo, Japan210.171.224.6259
BroadBand Internet eXchange SingaporeSingapore, Singapore103.231.153.10151
Network Service Provider IXP (Distributed IX in Edo)Tokyo, Japan202.249.2.2028

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.