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AS29752Zenlayer Inc

United StatesRegistryARIN

As of 11th November 2026, AS29752 (Zenlayer Inc), a network registered in the United States with ARIN, originates 26 IPv4 prefixes covering 6.9k addresses and 11 IPv6 prefixes. By IPv4 address space that makes it the 13,539th-largest of the 80,747 networks we see originating IPv4, and the 3,939th-largest of 18,752 in the United States. It is seen behind 7 upstream networks, most often AS4229 (Zenlayer Inc) and AS3257 (GTT Communications Inc.), and in front of 22 downstream networks. 86% of its announcements have a valid RPKI ROA; 2 are RPKI-invalid. 95% 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

26

IPv6 prefixes

11

IPv4 addresses

6.9k

IPv6 /64s

721k

Upstream graph

The networks AS29752 is seen behind, one and two hops out, drawn from real AS paths.

AS29752Toward the internet core
Upstream graph for AS29752: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS29752Zenlayer IncThis networkAS174Cogent Communicat…AS3257GTT Communication…AS4229Zenlayer IncAS6762Telecom Italia Sp…AS21859Zenlayer IncAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS6667Elisa OyjAS398465Rackdog LLCAS6453TATA Communicatio…AS2914NTT America, Inc.AS32590Valve Corporation

Networks observed one and two hops upstream of AS29752 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

65

adjacent networks

Upstreams
711%
Peers
3655%
Downstreams
2234%

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

Upstreams of AS29752
NetworkCountryRelationshipPathsVantage pts
AS4229Zenlayer IncUSPeer21,318122
AS3257GTT Communications Inc.USPeer16,468132
AS174Cogent Communications, LLCUSPeer10,383112
AS6762Telecom Italia Sparkle (Seabone)ITPeer5,28570
AS21859Zenlayer IncUSPeer2,17929
AS2914NTT America, Inc.USPeer1,51299
AS6453TATA Communications (America) IncUSPeer40269

Prefixes

All 37

The largest blocks AS29752 originates, widest first.

Largest prefixes originated by AS29752
PrefixAddressesVisibility
36.255.92.0/2351276/76
23.251.35.0/2425676/76
23.251.127.0/2425676/76
69.28.55.0/2425675/76
104.166.158.0/2425675/76
107.151.157.0/2425676/76
107.151.194.0/2425675/76
128.1.206.0/2425676/76
128.1.216.0/2425675/76
128.14.13.0/2425676/76

Routing health

How AS29752'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

  • Valid86.5%32
  • Invalid5.4%2
  • No ROA8.1%3

Propagation

  • Globally propagated90% of full-feed peers or more94.6%35
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%5.4%2

Prefix sizes

IPv4 — 26 prefixes

IPv6 — 11 prefixes

  • /4865.5k × /64100.0%11

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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