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AS4835China Telecom Xi'an IDC Network

ChinaRegistryAPNIC

As of 26th September 2026, AS4835 (China Telecom Xi'an IDC Network), a network registered in China with APNIC, originates 71 IPv4 prefixes covering 245k addresses and 15 IPv6 prefixes. By IPv4 address space that makes it the 1,150th-largest of the 79,480 networks we see originating IPv4, and the 75th-largest of 607 in China. It is seen behind 1 upstream network, most often AS4134 (China Telecom Backbone). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 97% of its routes reach at least 90% of full-feed peers, and 4 prefixes are also originated by another network.

At a glance

IPv4 prefixes

71

IPv6 prefixes

15

IPv4 addresses

245k

IPv6 /64s

671M

Upstream graph

The networks AS4835 is seen behind, one and two hops out, drawn from real AS paths.

AS4835Toward the internet core
Upstream graph for AS4835: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS4835China Telecom Xi'…This networkAS4134China Telecom Bac…AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS4835 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 AS4835
NetworkCountryRelationshipPathsVantage pts
AS4134China Telecom BackboneCNPeer6,592144

Prefixes

All 86

The largest blocks AS4835 originates, widest first.

Largest prefixes originated by AS4835
PrefixAddressesVisibility
183.84.0.0/1665.5k81/81
183.85.0.0/1665.5k81/81
113.142.0.0/1732.8k81/81
117.34.0.0/1732.8k81/81
124.115.0.0/198.2k81/81
125.76.224.0/198.2k81/81
219.144.96.0/204.1k81/81
124.115.0.0/212k81/81
113.142.20.0/221k81/81
113.142.40.0/221k81/81

Routing health

How AS4835'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

  • Valid100.0%86
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more96.5%83
  • Partially propagated40% to 90%2.3%2
  • Seen by few peersUnder 40%1.2%1

Prefix sizes

IPv4 — 71 prefixes

IPv6 — 15 prefixes

  • /36268M × /646.7%1
  • /37134M × /6413.3%2
  • /4016.8M × /6446.7%7
  • /418.4M × /6413.3%2
  • /46262k × /646.7%1
  • /4865.5k × /6413.3%2

Recent changes

Announcements that started or stopped since 27th Aug 2026.

  • Withdrawn124.251.34.0/2425th Sept 2026
  • Announced124.251.34.0/2425th Sept 2026
  • Withdrawn120.133.52.0/2422nd Sept 2026
  • Announced120.133.52.0/2422nd Sept 2026
  • Withdrawn123.103.0.0/2321st Sept 2026
  • Withdrawn210.192.116.0/2221st Sept 2026

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