subnet.im

AS23528Bird.com Inc.

United StatesRegistryARIN

As of 12th November 2026, AS23528 (Bird.com Inc.), a network registered in the United States with ARIN, originates 81 IPv4 prefixes covering 35.1k addresses. By IPv4 address space that makes it the 5,309th-largest of the 80,772 networks we see originating IPv4, and the 1,837th-largest of 18,759 in the United States. It is seen behind 3 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS174 (Cogent Communications, LLC). 4% of its announcements have 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

81

IPv6 prefixes

0

IPv4 addresses

35.1k

IPv6 /64s

0

Upstream graph

The networks AS23528 is seen behind, one and two hops out, drawn from real AS paths.

AS23528Toward the internet core
Upstream graph for AS23528: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS23528Bird.com Inc.This networkAS174Cogent Communicat…AS3257GTT Communication…AS6939Hurricane Electri…AS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS6667Elisa OyjAS398465Rackdog LLCAS20130Depaul UniversityAS132337Axclusive

Networks observed one and two hops upstream of AS23528 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

8

adjacent networks

Upstreams
338%
Peers
563%
Downstreams
00%

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

Upstreams of AS23528
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer3,63066
AS174Cogent Communications, LLCUSPeer1,75345
AS3257GTT Communications Inc.USPeer90936

Prefixes

All 81

The largest blocks AS23528 originates, widest first.

Largest prefixes originated by AS23528
PrefixAddressesVisibility
147.253.208.0/204.1k78/78
192.174.80.0/204.1k78/78
168.203.48.0/221k78/78
147.253.220.0/2351277/78
156.70.2.0/2351278/78
156.70.4.0/2351278/78
156.70.12.0/2351278/78
156.70.16.0/2351277/78
156.70.22.0/2351278/78
156.70.24.0/2351278/78

Routing health

How AS23528'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

  • Valid3.7%3
  • Invalid0.0%0
  • No ROA96.3%78

Propagation

  • Globally propagated90% of full-feed peers or more100.0%81
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 81 prefixes

Recent changes

Announcements that started or stopped since 13th Oct 2026.

No announcement by AS23528 started or stopped in this period.

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