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AS399077Tcloudnet

United StatesRegistryARIN

As of 11th November 2026, AS399077 (Tcloudnet), a network registered in the United States with ARIN, originates 507 IPv4 prefixes covering 131k addresses and 17 IPv6 prefixes. By IPv4 address space that makes it the 2,073rd-largest of the 80,747 networks we see originating IPv4, and the 671st-largest of 18,752 in the United States. It is seen behind 25 upstream networks, most often AS2914 (NTT America, Inc.) and AS3491 (PCCW Global (HK) Ltd.), and in front of 3 downstream networks. 60% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

507

IPv6 prefixes

17

IPv4 addresses

131k

IPv6 /64s

34.5M

Upstream graph

The networks AS399077 is seen behind, one and two hops out, drawn from real AS paths.

AS399077Toward the internet core
Upstream graph for AS399077: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS399077TcloudnetThis networkAS174Cogent Communicat…AS2914NTT America, Inc.AS3491PCCW Global (HK) …AS6939Hurricane Electri…AS14537Continent 8 LLCAS1299Arelion (fka. Tel…AS49544i3D.net B.VAS215859Hetzner Cloud - S…AS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…AS20130Depaul UniversityAS132337Axclusive

Networks observed one and two hops upstream of AS399077 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

95

adjacent networks

Upstreams
2526%
Peers
6771%
Downstreams
33%

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

Upstreams of AS399077
NetworkCountryRelationshipPathsVantage pts
AS2914NTT America, Inc.USPeer15,006112
AS3491PCCW Global (HK) Ltd.HKPeer14,92466
AS6939Hurricane Electric LLCUSPeer1,60512
AS174Cogent Communications, LLCUSPeer1,45037
AS14537Continent 8 LLCUSPeer1,0364
AS7713PT Telkom Indonesia TbkIDAdjacent1,0264
AS13335Cloudflare, Inc.USPeer60876
AS132337AxclusiveSGAdjacent5212
AS49544i3D.net B.VNLPeer5202
AS35280F5 Networks SARLFRPeer5132

Prefixes

All 524

The largest blocks AS399077 originates, widest first.

Largest prefixes originated by AS399077
PrefixAddressesVisibility
154.82.100.0/2351276/76
154.82.126.0/2351276/76
156.251.48.0/235127/76
206.238.214.0/2351276/76
38.127.240.0/2425676/76
38.127.241.0/2425676/76
38.127.242.0/2425676/76
38.127.243.0/2425676/76
38.127.244.0/2425676/76
38.127.245.0/2425676/76

Routing health

How AS399077'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

  • Valid59.5%312
  • Invalid0.0%0
  • No ROA40.5%212

Propagation

  • Globally propagated90% of full-feed peers or more99.4%521
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.6%3

Prefix sizes

IPv4 — 507 prefixes

IPv6 — 17 prefixes

  • /4016.8M × /6411.8%2
  • /4865.5k × /6488.2%15

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.