subnet.im

AS16509Amazon.com, Inc.

United StatesRegistryARINTypeContent

As of 11th November 2026, AS16509 (Amazon.com, Inc.), a content network registered in the United States with ARIN, originates 17,820 IPv4 prefixes covering 219M addresses and 5,998 IPv6 prefixes. By IPv4 address space that makes it the 2nd-largest of the 80,747 networks we see originating IPv4, and the 2nd-largest of 18,752 in the United States. It is seen behind 109 upstream networks, most often AS2914 (NTT America, Inc.) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 136 downstream networks. Over 99% of its announcements have a valid RPKI ROA; 14 are RPKI-invalid. 97% of its routes reach at least 90% of full-feed peers, and 23 prefixes are also originated by another network.

At a glance

IPv4 prefixes

17,820

IPv6 prefixes

5,998

IPv4 addresses

219M

IPv6 /64s

4.2T

Upstream graph

The networks AS16509 is seen behind, one and two hops out, drawn from real AS paths.

AS16509Toward the internet core
Upstream graph for AS16509: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS16509Amazon.com, Inc.This networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3257GTT Communication…AS6453TATA Communicatio…AS151326DCConnect Communi…AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS49544i3D.net B.VAS215859Hetzner Cloud - S…AS8220COLTAS35280F5 Networks SARL

Networks observed one and two hops upstream of AS16509 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

878

adjacent networks

Upstreams
10912%
Peers
63372%
Downstreams
13615%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 109.

Upstreams of AS16509
NetworkCountryRelationshipPathsVantage pts
AS2914NTT America, Inc.USPeer342,036116
AS1299Arelion (fka. Telia Carrier)SEPeer323,465136
AS6453TATA Communications (America) IncUSPeer191,503104
AS174Cogent Communications, LLCUSPeer176,081130
AS3257GTT Communications Inc.USPeer77,84038
AS2497Internet Initiative Japan Inc.JPPeer50,3126
AS6762Telecom Italia Sparkle (Seabone)ITPeer50,21286
AS6939Hurricane Electric LLCUSPeer49,10422
AS3356Lumen (Level 3)USPeer44,93864
AS3320Deutsche Telekom AGDEPeer41,42122

Prefixes

All 23,818

The largest blocks AS16509 originates, widest first.

Largest prefixes originated by AS16509
PrefixAddressesVisibility
3.0.0.0/104.2M75/76
3.64.0.0/104.2M75/76
3.128.0.0/104.2M75/76
3.192.0.0/104.2M75/76
34.192.0.0/104.2M75/76
44.192.0.0/104.2M75/76
184.192.0.0/104.2M75/76
44.224.0.0/112.1M75/76
52.0.0.0/112.1M75/76
52.32.0.0/112.1M75/76

Routing health

How AS16509'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

  • Valid99.5%23,700
  • Invalid<0.1%14
  • No ROA0.4%104

Propagation

  • Globally propagated90% of full-feed peers or more97.3%23,165
  • Partially propagated40% to 90%0.5%122
  • Seen by few peersUnder 40%2.2%531

Prefix sizes

IPv4 — 17,820 prefixes

IPv6 — 5,998 prefixes

  • /241.1T × /64<0.1%3
  • /25550B × /64<0.1%1
  • /2868.7B × /64<0.1%1
  • /2934.4B × /64<0.1%5
  • /324.3B × /640.3%20
  • /341.1B × /640.1%7
  • /35537M × /640.2%12
  • /36268M × /641.9%113
  • /37134M × /641.0%60
  • /3867.1M × /642.8%167
  • /3933.6M × /64<0.1%4
  • /4016.8M × /644.5%270
  • /418.4M × /64<0.1%2
  • /424.2M × /640.4%25
  • /432.1M × /640.2%14
  • /441M × /6410.0%598
  • /45524k × /640.3%20
  • /46262k × /6411.5%687
  • /47131k × /642.7%159
  • /4865.5k × /6463.9%3,830

Recent changes

Announcements that started or stopped since 12th Oct 2026.

3,572 announced and 4,975 withdrawn in all; the most recent are shown.

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