subnet.im

AS63838Hengyang

ChinaRegistryAPNIC

As of 27th September 2026, AS63838 (Hengyang), a network registered in China with APNIC, originates 21 IPv4 prefixes covering 55k addresses and 7 IPv6 prefixes. By IPv4 address space that makes it the 4,257th-largest of the 79,525 networks we see originating IPv4, and the 173rd-largest of 607 in China. It is seen behind 1 upstream network, most often AS4134 (China Telecom Backbone). 96% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 96% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

21

IPv6 prefixes

7

IPv4 addresses

55k

IPv6 /64s

554M

Upstream graph

The networks AS63838 is seen behind, one and two hops out, drawn from real AS paths.

AS63838Toward the internet core
Upstream graph for AS63838: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS63838HengyangThis networkAS4134China Telecom Bac…AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS63838 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS63838
NetworkCountryRelationshipPathsVantage pts
AS4134China Telecom BackboneCNPeer2,068144

Prefixes

All 28

The largest blocks AS63838 originates, widest first.

Largest prefixes originated by AS63838
PrefixAddressesVisibility
113.219.128.0/1816.4k81/81
175.4.0.0/1816.4k81/81
175.6.224.0/198.2k81/81
175.6.192.0/204.1k81/81
175.6.208.0/212k81/81
175.4.24.0/221k81/81
175.6.216.0/221k81/81
218.77.32.0/221k81/81
113.219.166.0/2351281/81
113.219.170.0/2351281/81

Routing health

How AS63838'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

  • Valid96.4%27
  • Invalid3.6%1
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more96.4%27
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%3.6%1

Prefix sizes

IPv4 — 21 prefixes

IPv6 — 7 prefixes

  • /36268M × /6414.3%1
  • /37134M × /6428.6%2
  • /4016.8M × /6414.3%1
  • /4865.5k × /6442.9%3

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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