subnet.im

AS3503WebNet LLC

United StatesRegistryARIN

As of 27th September 2026, AS3503 (WebNet LLC), a network registered in the United States with ARIN, originates 18 IPv4 prefixes covering 4.6k addresses. By IPv4 address space that makes it the 16,157th-largest of the 79,525 networks we see originating IPv4, and the 4,557th-largest of 18,428 in the United States. It is seen behind 1 upstream network, most often AS9009 (M247 Europe SRL). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

18

IPv6 prefixes

0

IPv4 addresses

4.6k

IPv6 /64s

0

Upstream graph

The networks AS3503 is seen behind, one and two hops out, drawn from real AS paths.

AS3503Toward the internet core
Upstream graph for AS3503: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS3503WebNet LLCThis networkAS9009M247 Europe SRLAS174Cogent Communicat…AS1299Arelion (fka. Tel…

Networks observed one and two hops upstream of AS3503 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 AS3503
NetworkCountryRelationshipPathsVantage pts
AS9009M247 Europe SRLROPeer1,44080

Prefixes

The largest blocks AS3503 originates, widest first.

Largest prefixes originated by AS3503
PrefixAddressesVisibility
68.170.0.0/2425680/81
68.170.1.0/2425680/81
103.54.143.0/2425680/81
139.177.156.0/2425680/81
139.177.157.0/2425680/81
149.19.199.0/2425680/81
162.33.160.0/2425680/81
162.33.161.0/2425680/81
162.33.162.0/2425680/81
162.33.163.0/2425680/81

Routing health

How AS3503'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%18
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%18
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 18 prefixes

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn139.177.148.0/2421st Sept 2026
  • Withdrawn139.177.155.0/2421st Sept 2026
  • Withdrawn191.44.110.0/2421st Sept 2026
  • Withdrawn80.81.39.0/2421st Sept 2026

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