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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 1.3K |
| — |
| 5 |
| AS15322US | UPWARD-BROADBAND - Upward Broadband LLC | 1.3K | — | 2 |
| AS32546US | SMARSH - Smarsh Inc | 1.3K | — | 4 |
| AS19577US | CASTRO-TELECOM - CASTRO TELECOM LLC | 1.3K | 257 | 4 |
| AS18493US | IGNA-NETWORKS - Igna Networks LLC | 1.3K | 256 | 6 |
| AS19717US | MAINSTREAMDATA-375 - Mainstream Data, Inc. | 1.3K | — | 4 |
| AS401405US | CRUSOE-ASN-02 - CRUSOE ENERGY SYSTEMS LLC | 1.3K | — | 4 |
| AS400506US | BAIAS - Black Apple | 1.3K | — | 5 |
| AS399520US | LINDENWOOD-UNIVERSITY - Lindenwood University | 1.3K | — | 4 |
| AS14676US | REGUS - Regus Business Centre, LLC | 1.3K | — | 5 |
| AS36446US | OCOSA - OCOSA Communication, LLC | 1.3K | 4.1K | 5 |
| AS17037US | GOINET - goINet, Inc. | 1.3K | — | 5 |
| AS393670US | SFC-GA - Southern Fibernet Corporation | 1.3K | 65.5K | 4 |
| AS394188US | PRIMEVOX - PrimeVOX Communications, LLC | 1.3K | — | 5 |
| AS21807US | AETHERIAL-NETWORKS - Aetherial Networks LLC | 1.3K | 256 | 6 |
| AS40010US | JPMORGAN-CPS-SALEM-NH - JPMorgan Chase & Co. | 1.3K | — | 5 |
| AS14054US | PURPLENET - Purple Computer North America, Inc. | 1.3K | 1 | 6 |
| AS11455US | USTR-ASN - US Technology Resources, LLC | 1.3K | — | 5 |
| AS1046US | FIBERIFI - Fiberifi | 1.3K | — | 2 |
| AS402971US | CA-POP - NM | 1.3K | 4.1K | 6 |
| AS46253US | SUGARSYNC - IPVanish, Inc. | 1.3K | — | 5 |
| AS6977US | AS-LAYERSWITCH - LayerSwitch, Inc | 1.3K | 4.1K | 6 |
| AS396278US | CONNECTEDAF-01 - ConnectedAF Limited | 1.3K | — | 2 |
| AS398728US | TERAVITY-AS - Teravity Networks | 1.3K | — | 2 |
| AS27496US | AS27496 - VENETIAN CASINO RESORT, LLC | 1.3K | — | 3 |
| AS33460US | WAUBONSEE-COMMUNITY-COLLEGE - Waubonsee Community College | 1.3K | — | 4 |
| AS207134US | PHOENIXNAP-SRB PHOENIX NAP, LLC. | 1.3K | 256 | 4 |
| AS18606US | AS-METER-1 - Meter Inc. | 1.3K | — | 4 |
| AS40525US | CHOC - CHILDRENS HOSPITAL OF ORANGE COUNTY | 1.3K | — | 5 |
| AS396046US | PNFP - Pinnacle Financial Partners, Inc. | 1.3K | — | 3 |
| AS11940US | DIRECTSCOM - Direct Supply, Inc. | 1.3K | — | 4 |
| AS396311US | FASTWAVE - FastWave.biz | 1.3K | — | 2 |
| AS397686US | C1CX-TX - C1CX | 1.3K | — | 4 |
| AS399675US | GIGALINX - GigaLinx Communications LLC. | 1.3K | 65.5K | 3 |
| AS36107US | FITCH-NETWORK-NY - FITCH INC. | 1.3K | — | 2 |
| AS62968US | AS-CMC - Central Michigan Communication, Co. | 1.3K | — | 2 |
| AS33427US | WSU-TRI-AS - Washington State University | 1.3K | — | 4 |
| AS36154US | WURESTON - THE WESTERN UNION COMPANY | 1.3K | — | 3 |
| AS399907US | CAJUN-BROADBAND - Cajun Broadband, Inc | 1.3K | — | 2 |
| AS35934US | REPUBLIC-SERVICES-INC - Republic Services Inc. | 1.3K | — | 2 |
| AS12047US | GUNDERSEN-LUTHERAN - Gundersen Lutheran Medical Center, Inc. | 1.3K | — | 5 |
| AS394325US | SPECTRUM-VOIP - SpectrumVoIP Inc | 1.3K | — | 5 |
| AS402030US | LEFTSHIFT - Left Shift Logical, LLC | 1.3K | 256 | 3 |
| AS22414US | CRAIGS-NET-1 - Craigslist, Inc. | 1.3K | 16 | 3 |
| AS31834US | TELA-ASN - TELA, Incorporated | 1.3K | — | 5 |
| AS395474US | CITY-OF-PLANO-TX - City of Plano, Texas | 1.3K | — | 5 |
| AS27526US | ENDAI-NETWORKS-ASN - Endai Corporation | 1.3K | — | 4 |