subnet.im

AS1820WNET TELECOM USA Corp.

United StatesRegistryARINTypeCarrier

As of 26th September 2026, AS1820 (WNET TELECOM USA Corp.), a transit carrier registered in the United States with ARIN, originates 45 IPv4 prefixes covering 50.9k addresses and 5 IPv6 prefixes. By IPv4 address space that makes it the 4,405th-largest of the 79,516 networks we see originating IPv4, and the 1,571st-largest of 18,424 in the United States. It is seen behind 46 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS3257 (GTT Communications Inc.), and in front of 108 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 86% of its routes reach at least 90% of full-feed peers, and 7 prefixes are also originated by another network.

At a glance

IPv4 prefixes

45

IPv6 prefixes

5

IPv4 addresses

50.9k

IPv6 /64s

38.9B

Upstream graph

The networks AS1820 is seen behind, one and two hops out, drawn from real AS paths.

AS1820Toward the internet core
Upstream graph for AS1820: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS1820WNET TELECOM USA …This networkAS1273Vodafone Group PLCAS1299Arelion (fka. Tel…AS3257GTT Communication…AS13030Init7 (Switzerlan…AS14537Continent 8 LLCAS41811CONVERGENCE (GROU…AS6667Elisa OyjAS8888xTom Pty LtdAS398465Rackdog LLCAS56662Marcin GondekAS2914NTT America, Inc.AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS1820 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

493

adjacent networks

Upstreams
469%
Peers
33969%
Downstreams
10822%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 46.

Upstreams of AS1820
NetworkCountryRelationshipPathsVantage pts
AS1299Arelion (fka. Telia Carrier)SEPeer5,50657
AS3257GTT Communications Inc.USPeer3,30882
AS1273Vodafone Group PLCEUPeer2,66829
AS13030Init7 (Switzerland) Ltd.CHPeer1,1304
AS14537Continent 8 LLCUSPeer1,0044
AS32590Valve CorporationUSPeer9073
AS52075Wifirst S.A.S.FRPeer6392
AS41811CONVERGENCE (GROUP NETWORKS) LIMITEDGBPeer6111
AS3741Dimension DataZAPeer6101
AS8455atom86 BVNLPeer6062

Prefixes

All 50

The largest blocks AS1820 originates, widest first.

Largest prefixes originated by AS1820
PrefixAddressesVisibility
64.49.64.0/198.2k81/81
80.92.224.0/204.1k81/81
92.60.176.0/204.1k81/81
217.20.160.0/204.1k81/81
217.20.176.0/204.1k81/81
31.172.136.0/212k81/81
31.223.224.0/212k81/81
128.0.168.0/212k81/81
212.110.144.0/212k81/81
92.119.220.0/221k81/81

Routing health

How AS1820'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%50
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more86.0%43
  • Partially propagated40% to 90%6.0%3
  • Seen by few peersUnder 40%8.0%4

Prefix sizes

IPv4 — 45 prefixes

IPv6 — 5 prefixes

  • /2934.4B × /6420.0%1
  • /324.3B × /6420.0%1
  • /36268M × /6420.0%1
  • /424.2M × /6440.0%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS1820 started or stopped in this period.

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