subnet.im

AS16509Amazon.com, Inc.

United StatesRegistryARINTypeContent

As of 16th October 2026, AS16509 (Amazon.com, Inc.), a content network registered in the United States with ARIN, originates 18,069 IPv4 prefixes covering 219M addresses and 5,955 IPv6 prefixes. By IPv4 address space that makes it the 2nd-largest of the 79,622 networks we see originating IPv4, and the 2nd-largest of 18,460 in the United States. It is seen behind 112 upstream networks, most often AS2914 (NTT America, Inc.) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 129 downstream networks. Over 99% of its announcements have a valid RPKI ROA; 2 are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers, and 25 prefixes are also originated by another network.

At a glance

IPv4 prefixes

18,069

IPv6 prefixes

5,955

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 LLCAS38880Micron21 Datacent…AS49544i3D.net B.VAS8220COLTAS35280F5 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

866

adjacent networks

Upstreams
11213%
Peers
62572%
Downstreams
12915%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 112.

Upstreams of AS16509
NetworkCountryRelationshipPathsVantage pts
AS2914NTT America, Inc.USPeer362,976121
AS1299Arelion (fka. Telia Carrier)SEPeer346,961143
AS6453TATA Communications (America) IncUSPeer223,652109
AS174Cogent Communications, LLCUSPeer221,453140
AS3257GTT Communications Inc.USPeer66,31857
AS6939Hurricane Electric LLCUSPeer53,47132
AS2497Internet Initiative Japan Inc.JPPeer48,9176
AS3320Deutsche Telekom AGDEPeer45,90122
AS9002RETN LimitedGBPeer45,27619
AS3356Lumen (Level 3)USPeer45,12471

Prefixes

All 24,024

The largest blocks AS16509 originates, widest first.

Largest prefixes originated by AS16509
PrefixAddressesVisibility
3.0.0.0/104.2M80/81
3.64.0.0/104.2M79/81
3.128.0.0/104.2M80/81
3.192.0.0/104.2M80/81
34.192.0.0/104.2M80/81
44.192.0.0/104.2M80/81
184.192.0.0/104.2M80/81
44.224.0.0/112.1M79/81
52.0.0.0/112.1M80/81
52.32.0.0/112.1M80/81

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

  • Valid99.6%23,934
  • Invalid<0.1%2
  • No ROA0.4%88

Propagation

  • Globally propagated90% of full-feed peers or more99.7%23,951
  • Partially propagated40% to 90%0.1%26
  • Seen by few peersUnder 40%0.2%47

Prefix sizes

IPv4 — 18,069 prefixes

IPv6 — 5,955 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 × /640.2%14
  • /341.1B × /640.1%7
  • /35537M × /640.2%12
  • /36268M × /641.9%112
  • /37134M × /640.9%52
  • /3867.1M × /642.8%167
  • /3933.6M × /64<0.1%4
  • /4016.8M × /644.6%271
  • /418.4M × /64<0.1%2
  • /424.2M × /640.4%25
  • /432.1M × /640.2%14
  • /441M × /6410.0%597
  • /45524k × /640.4%21
  • /46262k × /6411.5%687
  • /47131k × /642.6%157
  • /4865.5k × /6463.9%3,803

Recent changes

Announcements that started or stopped since 16th Sept 2026.

7,297 announced and 4,873 withdrawn in all; the most recent are shown.

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