subnet.im

AS53587AZURE TECHNOLOGY CO., LIMITED

United StatesRegistryARIN

As of 26th September 2026, AS53587 (AZURE TECHNOLOGY CO., LIMITED), a network registered in the United States with ARIN, originates 79 IPv4 prefixes covering 44.8k addresses and 7 IPv6 prefixes. By IPv4 address space that makes it the 4,674th-largest of the 79,480 networks we see originating IPv4, and the 1,650th-largest of 18,421 in the United States. It is seen behind 20 upstream networks, most often AS137409 (GSL Networks Pty LTD) and AS174 (Cogent Communications, LLC), and in front of 27 downstream networks. 99% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 98% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

79

IPv6 prefixes

7

IPv4 addresses

44.8k

IPv6 /64s

4.3B

Upstream graph

The networks AS53587 is seen behind, one and two hops out, drawn from real AS paths.

AS53587Toward the internet core
Upstream graph for AS53587: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS53587AZURE TECHNOLOGY …This networkAS174Cogent Communicat…AS2914NTT America, Inc.AS17676SoftBank Corp.AS21859Zenlayer IncAS137409GSL Networks Pty …AS151326DCConnect Communi…AS1299Arelion (fka. Tel…AS3130RGnet OUAS49544i3D.net B.VAS4229Zenlayer IncAS8529Zain Omantel Inte…AS32590Valve Corporation

Networks observed one and two hops upstream of AS53587 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

113

adjacent networks

Upstreams
2018%
Peers
6658%
Downstreams
2724%

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

Upstreams of AS53587
NetworkCountryRelationshipPathsVantage pts
AS137409GSL Networks Pty LTDAUPeer18,017144
AS174Cogent Communications, LLCUSPeer3,14987
AS2914NTT America, Inc.USPeer2,59190
AS21859Zenlayer IncUSPeer65781
AS17676SoftBank Corp.JPPeer44572
AS58453China Mobile InternationalHKPeer9281
AS4134China Telecom BackboneCNPeer821
AS6939Hurricane Electric LLCUSPeer545
AS59692IQWeb FZ-LLCAEPeer5312
AS18106Viewqwest Pte LtdSGPeer252

Prefixes

All 86

The largest blocks AS53587 originates, widest first.

Largest prefixes originated by AS53587
PrefixAddressesVisibility
45.61.192.0/198.2k81/81
45.61.192.0/212k81/81
45.61.208.0/212k81/81
45.61.216.0/212k81/81
45.61.224.0/212k81/81
168.235.240.0/212k81/81
43.250.184.0/221k81/81
45.61.204.0/221k81/81
45.61.224.0/221k81/81
45.61.228.0/221k81/81

Routing health

How AS53587'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

  • Valid98.8%85
  • Invalid1.2%1
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more97.7%84
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%2.3%2

Prefix sizes

IPv4 — 79 prefixes

IPv6 — 7 prefixes

  • /324.3B × /6414.3%1
  • /4865.5k × /6485.7%6

Recent changes

Announcements that started or stopped since 27th Aug 2026.

  • Announced65.181.183.0/2422nd Sept 2026
  • Withdrawn45.64.244.0/2421st Sept 2026

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