AS4134China Telecom Backbone

ChinaRegistryAPNICTypeCarrier

As of 10th November 2026, AS4134 (China Telecom Backbone), a transit carrier registered in China with APNIC, originates 2,254 IPv4 prefixes covering 112M addresses and 633 IPv6 prefixes. By IPv4 address space that makes it the 4th-largest of the 80,723 networks we see originating IPv4, and the largest of 617 in China. It is seen behind 48 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS3356 (Lumen (Level 3)), and in front of 203 downstream networks. 93% of its announcements have a valid RPKI ROA; 92 are RPKI-invalid. 46% of its routes reach at least 90% of full-feed peers, and 5 prefixes are also originated by another network.

At a glance

IPv4 prefixes

2,254

IPv6 prefixes

633

IPv4 addresses

112M

IPv6 /64s

25.2T

Upstream graph

The networks AS4134 is seen behind, one and two hops out, drawn from real AS paths.

AS4134Toward the internet core

Networks observed one and two hops upstream of AS4134 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

575

adjacent networks

Upstreams: 488%
Peers: 32456%
Downstreams: 20335%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 48.

Upstreams of AS4134
Network	Country	Relationship	Paths	Vantage pts
AS1299Arelion (fka. Telia Carrier)	SE	Peer	370,917	53
AS3356Lumen (Level 3)	US	Peer	249,939	109
AS2914NTT America, Inc.	US	Peer	188,344	56
AS6453TATA Communications (America) Inc	US	Peer	181,926	58
AS3491PCCW Global (HK) Ltd.	HK	Peer	118,909	26
AS3257GTT Communications Inc.	US	Peer	77,676	52
AS2497Internet Initiative Japan Inc.	JP	Peer	70,585	6
AS6939Hurricane Electric LLC	US	Peer	70,219	17
AS174Cogent Communications, LLC	US	Peer	65,754	109
AS25091IP-Max SA	CH	Peer	60,398	5

Prefixes

All 2,887

The largest blocks AS4134 originates, widest first.

Largest prefixes originated by AS4134
Prefix	Addresses	Visibility
183.0.0.0/10	4.2M	75/76
49.64.0.0/11	2.1M	75/76
113.64.0.0/11	2.1M	75/76
115.192.0.0/11	2.1M	75/76
180.96.0.0/11	2.1M	75/76
183.128.0.0/11	2.1M	75/76
14.16.0.0/12	1M	75/76
14.112.0.0/12	1M	75/76
14.144.0.0/12	1M	75/76
14.208.0.0/12	1M	75/76

Routing health

How AS4134'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

Valid93.0%2,686
Invalid3.2%92
No ROA3.8%109

Propagation

Globally propagated90% of full-feed peers or more46.1%1,331
Partially propagated40% to 90%<0.1%2
Seen by few peersUnder 40%53.8%1,554

Prefix sizes

IPv4 — 2,254 prefixes

IPv6 — 633 prefixes

/2017.6T × /640.2%1
/241.1T × /640.2%1
/2868.7B × /641.1%7
/2934.4B × /646.2%39
/3017.2B × /6432.7%207
/318.6B × /648.7%55
/324.3B × /6420.2%128
/332.1B × /649.2%58
/341.1B × /641.6%10
/36268M × /642.8%18
/4016.8M × /643.6%23
/418.4M × /640.2%1
/441M × /645.4%34
/4865.5k × /648.1%51

Recent changes

Announcements that started or stopped since 11th Oct 2026.

Withdrawn1.195.223.0/246th Nov 2026
Withdrawn117.83.0.0/166th Nov 2026
Announced123.54.192.0/236th Nov 2026
Announced1.193.146.0/236th Nov 2026
Withdrawn1.193.146.0/236th Nov 2026
Withdrawn1.193.223.0/246th Nov 2026
Withdrawn1.194.173.0/246th Nov 2026
Announced1.194.173.0/246th Nov 2026
Announced1.194.205.0/246th Nov 2026
Withdrawn1.194.205.0/246th Nov 2026
Announced1.194.216.0/236th Nov 2026
Withdrawn1.194.216.0/236th Nov 2026

1,688 announced and 160 withdrawn in all; the most recent are shown.

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