subnet.im

AS63897vocom international telecom

TaiwanRegistryAPNIC

As of 26th September 2026, AS63897 (vocom international telecom), a network registered in Taiwan with APNIC, originates 12 IPv4 prefixes covering 3.1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 20,111th-largest of the 79,516 networks we see originating IPv4, and the 104th-largest of 234 in Taiwan. It is seen behind 5 upstream networks, most often AS9002 (RETN Limited) and AS45250 (Vocom International Telecommunications…), and in front of 3 downstream networks. 77% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

12

IPv6 prefixes

1

IPv4 addresses

3.1k

IPv6 /64s

4.3B

Upstream graph

The networks AS63897 is seen behind, one and two hops out, drawn from real AS paths.

AS63897Toward the internet core
Upstream graph for AS63897: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS63897vocom internation…This networkAS4780Digital United In…AS9002RETN LimitedAS10133Chief Telecom Inc.AS24482SG.GSAS45250Vocom Internation…AS3491PCCW Global (HK) …AS51907Kanton ZugAS6453TATA Communicatio…AS6939Hurricane Electri…AS15412Flag Telecom UK L…AS174Cogent Communicat…AS9304HGC Global Commun…

Networks observed one and two hops upstream of AS63897 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

17

adjacent networks

Upstreams
529%
Peers
953%
Downstreams
318%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS63897
NetworkCountryRelationshipPathsVantage pts
AS9002RETN LimitedGBPeer83381
AS45250Vocom International Telecommunications AP AreaUSPeer334130
AS4780Digital United Inc.TWPeer29469
AS10133Chief Telecom Inc.TWPeer75
AS24482SG.GSSGPeer51

Prefixes

The largest blocks AS63897 originates, widest first.

Largest prefixes originated by AS63897
PrefixAddressesVisibility
38.70.74.0/2425681/81
38.150.70.0/2425681/81
45.87.55.0/2425681/81
103.127.236.0/2425681/81
103.127.237.0/2425680/81
103.127.239.0/2425681/81
103.175.254.0/2425681/81
103.178.36.0/2425681/81
103.178.37.0/2425681/81
157.20.199.0/2425681/81

Routing health

How AS63897's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid76.9%10
  • Invalid0.0%0
  • No ROA23.1%3

Propagation

  • Globally propagated90% of full-feed peers or more100.0%13
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 12 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn103.135.23.0/2421st Sept 2026

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.