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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
32,159 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1.5K |
| — |
| 3 |
| AS399363US | OAISD-OAWAN - Ottawa Area ISD | 1.5K | — | 5 |
| AS398464US | BDDY - Buddy Software LLC | 1.5K | — | 3 |
| AS400587US | RYAMER - Ryamer, LLC | 1.5K | 13.6K | 14 |
| AS396264US | NOW - Night Owl Wireless, LLC | 1.5K | — | 6 |
| AS209811US | Intranet-AS Intranet Services LLC | 1.5K | 1 | 5 |
| AS40499US | WG - Washington Gas | 1.5K | — | 6 |
| AS7153US | ISO-NE - ISO New England Inc. | 1.5K | — | 5 |
| AS16886US | HEB-AS-PRIMARY - H-E-B, LP | 1.5K | — | 6 |
| AS397279US | NIMBUS-SOLUTIONS - Nimbus Solutions | 1.5K | — | 6 |
| AS31921US | MALONE-ASN - Malone University | 1.5K | 1 | 7 |
| AS30230US | CONTINENT8-CLOUD - Continent 8 LLC | 1.5K | — | 6 |
| AS22436US | SONICNETINC - SonicNet Inc. | 1.5K | — | 5 |
| AS55204US | TELESCAN - ClearPoint | 1.5K | — | 3 |
| AS212071US | SYDMAE Sydney Morrison | 1.5K | — | 5 |
| AS62620US | IRVINECO - THE IRVINE COMPANY LLC | 1.5K | — | 3 |
| AS22909US | COMCAST-22909 - Comcast Cable Communications, LLC | 1.5K | 49 | 55 |
| AS53983US | CORKAT-DATA-SOLUTIONS - CorKat Data Solutions, LLC | 1.5K | — | 2 |
| AS13379US | BURBANK-SPN - Disney Worldwide Services, Inc. | 1.5K | — | 6 |
| AS22803US | NOV-AS - National Oilwell Varco, Inc. | 1.5K | — | 6 |
| AS398876US | RVIT-7TRIBES - Round Valley Indian Tribes | 1.5K | — | 2 |
| AS21856US | NOKIA-ASN - Nokia of America Corporation | 1.5K | 32 | 7 |
| AS1414US | ASN1 - GENUINE PARTS COMPANY | 1.5K | — | 4 |
| AS54603US | WEGMANS-FM - Wegmans Food Markets, Inc. | 1.5K | — | 4 |
| AS398810US | MXROUTE - MXroute LLC | 1.5K | 1 | 7 |
| AS25771US | MAXIM-60 - PSI/Maximus | 1.5K | — | 4 |
| AS26679US | HELIACAL - Heliacal Networks | 1.5K | 18 | 6 |
| AS54695US | PROGENT-ASN-1 - Progent, Corp. | 1.5K | — | 5 |
| AS21945US | HARLANDCLARKE-AS - Harland Clarke Corp. | 1.5K | — | 5 |
| AS22338US | ALLY-INVEST - Ally Financial Inc. | 1.5K | — | 4 |
| AS26524US | BUDCO - BUDCO | 1.5K | — | 5 |
| AS40458US | CMIGNET - CMFG Life Insurance Company | 1.5K | — | 6 |
| AS35953US | VIRTEL-16 - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS396181US | SOUTHERNLINC-PACKETDATA-ASN2 - SouthernLINC Wireless | 1.5K | — | 6 |
| AS400799US | PUFFERFISH-STUDIOS - Pufferfish Studios LLC | 1.5K | 8 | 8 |
| AS396881US | DRSERVER1 - drServer.net | 1.5K | 15 | 14 |
| AS2030US | TBCASN2 - The Boeing Company | 1.5K | — | 3 |
| AS396961US | INTERNET2-OSG - Internet2 | 1.5K | 6 | 12 |
| AS62582US | MJMTELECOM - Accel Wireless | 1.5K | — | 3 |
| AS398801US | NET-OPS-COMMUNICATIONS - Net Ops Communications, LLC | 1.5K | — | 3 |
| AS402273US | INSTANTLY-AI - Instantly.ai | 1.5K | 65.5K | 5 |
| AS9423US | SERVERKINGIOLLC-AS-AP - ServerKing.io, LLC | 1.5K | 4 | 9 |
| AS399266US | PONENET - Z Plus LLC | 1.5K | 2 | 8 |
| AS13496US | BELCAN - Belcan Corporation | 1.5K | — | 5 |
| AS33345US | SIERRADATACENTERS - Sierra Experts | 1.5K | 4.1K | 4 |
| AS19462US | USSCO-AS19462 - Essendant Co. | 1.5K | — | 4 |
| AS33661US | CMCS - Comcast Cable Communications, LLC | 1.5K | 15 | 21 |