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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) | 227.7M | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,186 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,242 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,669 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,373 |
| 256 |
| — |
| 1 |
| AS1096US | IZUMA-PROD-1 - Izuma Networks Inc. | 256 | — | 1 |
| AS19841US | ISNS1 - ISNS | 256 | — | 1 |
| AS401770US | OMNIVERY-US - Omnivery | 256 | — | 1 |
| AS214127US | JINK-HOSTING Jink Hosting LLC | 256 | — | 1 |
| AS400365US | SCH-K12 - School City of Hammond | 256 | — | 1 |
| AS20261US | MSA-CORP - Medical Services of America | 256 | — | 1 |
| AS62863US | AS62863 - PRAIRIECARE LLC | 256 | — | 1 |
| AS400216US | PARKWAY-SCHOOL-DISTRICT - Parkway School District | 256 | — | 1 |
| AS402116US | AUTOSYS-NETWORK-01 - Automated Systems | 256 | — | 1 |
| AS393285US | CTPF203 - Chicago Teachers Pension Fund | 256 | — | 1 |
| AS14503US | STOWERS-RESOURCE-MANAGEMENT - Stowers Resource Management Inc | 256 | — | 1 |
| AS32730US | NAHQPU - LG CNS America Inc. | 256 | — | 1 |
| AS54443US | EP-ISD272 - Eden Prairie School District | 256 | — | 1 |
| AS393553US | MINERVANETWORKS-US-CA-ALV-HEADQUARTERS - Minerva Networks, Inc. | 256 | — | 1 |
| AS32551US | KOHLBERG - Kohlberg & Co., L.L.C. | 256 | — | 1 |
| AS398233US | RURALREACH-01 - IVSComm, Inc | 256 | — | 1 |
| AS394324US | AS-PISD-8 - Pearland Independent School District | 256 | — | 1 |
| AS32572US | AVENIR - Avenir Solutions Inc. | 256 | — | 1 |
| AS393502US | XL-19 - Zenlayer Inc | 256 | — | 1 |
| AS11588US | LAMBDA-BB - Lambda | 256 | 65.5K | 2 |
| AS18543US | ION-NEWYORKCITY-NYC - ION MEDIA NETWORKS | 256 | — | 1 |
| AS397581US | MGS-EXIT-HUB - MIC GLOBAL SERVICES, LLC | 256 | — | 1 |
| AS40929US | MOEDOVE-BN - MoeDove | 256 | 25.6K | 32 |
| AS62562US | SYNCREON-US - Syncreon America Inc | 256 | — | 1 |
| AS11085US | NCS-TECHNOLOGIES - NCS Technologies Inc | 256 | — | 1 |
| AS62720US | IRONTONTELEPHONECO - Ironton Telephone Company | 256 | — | 1 |
| AS54669US | LARIMER-ASN - Larimer County Government | 256 | — | 1 |
| AS400484US | NMC-1441 - Natividad Medical Center | 256 | — | 1 |
| AS400713US | MAXIM-STAFFING - Amergis Healthcare Staffing, Inc. | 256 | — | 1 |
| AS16938US | EXCEL-NET-01 - Excelsior College | 256 | — | 1 |
| AS54946US | MH105-METRO-HEALTH-HOSPITAL - Metro Health | 256 | — | 1 |
| AS394952US | LMCU-ASN-01 - Lake Michigan Credit Union | 256 | — | 1 |
| AS40378US | NESSIT - Nessit, LLC | 256 | — | 1 |
| AS207419US | Richard-Marino Richard Marino | 256 | — | 1 |
| AS36311US | CCU-ATT-01 - Capital Credit Union | 256 | — | 1 |
| AS401666US | WORLD-GOLF-TOUR - World Golf Tour | 256 | — | 1 |
| AS25724US | EXPENSEANYWHERE - Virtual Communications | 256 | — | 1 |
| AS400806US | CLEARLYIP-CA - Clearly IP Inc | 256 | 1 | 2 |
| AS11418US | LIGHTEDGE-AS-03 - LightEdge Solutions | 256 | 4.1K | 2 |
| AS40771US | IML - Illinois Mutual Life Insurance Company | 256 | — | 1 |
| AS63253US | USSFCU-AS - United States Senate Federal Credit Union | 256 | — | 1 |
| AS26781US | BHSALA - Baptist Health System of Alabama | 256 | — | 1 |
| AS27457US | SLG-2 - SL Green Realty Corp | 256 | — | 1 |
| AS394113US | INCCRRA-MAIN - INCCRRA | 256 | — | 1 |
| AS395619US | THE-COLLEGE-OF-THE-FLORIDA-KEYS - The College of Florida Keys | 256 | — | 1 |
| AS401401US | UNREDACTED-NOISENET - Unredacted Inc | 256 | 1 | 2 |