subnet.im

AS27257Webair Internet Development Company Inc.

United StatesRegistryARINTypeContent

As of 27th September 2026, AS27257 (Webair Internet Development Company Inc.), a content network registered in the United States with ARIN, originates 81 IPv4 prefixes covering 134k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 1,849th-largest of the 79,525 networks we see originating IPv4, and the 556th-largest of 18,428 in the United States. It is seen behind 8 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS3303 (Swisscom (Schweiz) AG), and in front of 5 downstream networks. None of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 99% 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

81

IPv6 prefixes

3

IPv4 addresses

134k

IPv6 /64s

4.3B

Upstream graph

The networks AS27257 is seen behind, one and two hops out, drawn from real AS paths.

AS27257Toward the internet core
Upstream graph for AS27257: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS27257Webair Internet D…This networkAS174Cogent Communicat…AS3303Swisscom (Schweiz…AS6939Hurricane Electri…AS14537Continent 8 LLCAS29838Atlantic Metro Co…AS151326DCConnect Communi…AS1299Arelion (fka. Tel…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS2914NTT America, Inc.AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS27257 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

46

adjacent networks

Upstreams
817%
Peers
3372%
Downstreams
511%

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

Upstreams of AS27257
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer6,951143
AS3303Swisscom (Schweiz) AGCHPeer821
AS174Cogent Communications, LLCUSPeer7875
AS29838Atlantic Metro Communications II, Inc.USAdjacent451
AS14537Continent 8 LLCUSPeer62
AS25091IP-Max SACHPeer62
AS49544i3D.net B.VNLPeer31
AS24482SG.GSSGPeer33

Prefixes

All 84

The largest blocks AS27257 originates, widest first.

Largest prefixes originated by AS27257
PrefixAddressesVisibility
173.239.0.0/1816.4k81/81
174.137.128.0/1816.4k81/81
67.55.64.0/198.2k81/81
67.55.96.0/198.2k81/81
74.206.224.0/198.2k81/81
173.239.0.0/198.2k81/81
209.200.32.0/198.2k81/81
50.115.224.0/204.1k81/81
69.42.64.0/204.1k81/81
69.42.80.0/204.1k81/81

Routing health

How AS27257'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

  • Valid0.0%0
  • Invalid1.2%1
  • No ROA98.8%83

Propagation

  • Globally propagated90% of full-feed peers or more98.8%83
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%1.2%1

Prefix sizes

IPv4 — 81 prefixes

IPv6 — 3 prefixes

  • /324.3B × /6433.3%1
  • /4865.5k × /6466.7%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Announced103.14.98.0/2425th Sept 2026
  • Withdrawn103.14.98.0/2424th Sept 2026

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