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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| — |
| — |
| 0 |
| AS1467US | DNIC-ASBLK-01467-01468 - Headquarters, USAISC | — | — | 0 |
| AS402887US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS3619US | MCIASN-BLK - Verizon Business | — | — | 0 |
| AS1263US | AS1263 - National Aeronautics and Space Administration | — | — | 0 |
| AS307US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS403087US | RBNOC - RB | — | — | 0 |
| AS432US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS418US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS310US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS393US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS6317US | MILLENNIANET - MillenniaNet, LLC | — | — | 0 |
| AS6288US | PERTECH-CA-01 - PerTech Inc. | — | — | 0 |
| AS6038US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6380US | BELLSOUTH-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5949US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5948US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5909US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS17132US | ACDNET-ASN4 - ACD.net | — | — | 0 |
| AS19227US | OK-INTERNET - Terra World, Inc. | — | — | 0 |
| AS19026US | XO-ASN14 - Verizon Business | — | — | 0 |
| AS19144US | UPMC-SUSQ - UPMC | — | — | 0 |
| AS18737US | VISANET-3 - VISA INTERNATIONAL SERVICE ASSOCIATION | — | — | 0 |
| AS18706US | REALNETWORKS - REALNETWORKS LLC | — | — | 0 |
| AS18452US | ALORICA - ALORICA INC | — | — | 0 |
| AS18861US | IVANET-BUE - IBASIS INC. | — | — | 0 |
| AS18741US | SOUNDHOUND1 - SoundHound, Inc. | — | — | 0 |
| AS22967US | CIMATELECOM1 - Cima Telecom, Inc. | — | — | 0 |
| AS22329US | BAYMOUNTAIN - Flexential Corp. | — | — | 0 |
| AS22859US | GOOGLE - Google LLC | — | — | 0 |
| AS21988US | HENDRICK-AUTO-GROUP - Hendrick Automotive Group | — | — | 0 |
| AS21776US | BLOSSOMTEL-AS - CHICKASAW TELEPHONE | — | — | 0 |
| AS20301US | AS20301 - National Aeronautics and Space Administration | — | — | 0 |
| AS612US | AIRFIBER521 - AirFiber, Inc. | — | — | 0 |
| AS19897US | IQNT-BROAD-6-19897 - Inteliquent, inc. | — | — | 0 |
| AS21657US | FRTCC-LOUISANET - Foothills Rural Telephone Cooperative Corporation, Inc. | — | — | 0 |
| AS2887US | RRM-ASN - Ford Motor Company | — | — | 0 |
| AS2911US | CITI4 - Citigroup Inc. | — | — | 0 |
| AS2035US | NGIS-AS3 - Northrop Grumman Corp. | — | — | 0 |
| AS2001US | AS-NALCO-MPLS - Ecolab, Inc. | — | — | 0 |
| AS1666US | VFN-MEMBERS - Verizon Business | — | — | 0 |
| AS2382US | WISCNET2-AS - WiscNet | — | — | 0 |
| AS1495US | DNIC-ASBLK-01494-01495 - Headquarters, USAISC | — | — | 0 |
| AS1489US | DNIC-ASBLK-01488-01489 - Headquarters, USAISC | — | — | 0 |
| AS3928US | VALLEY-TECH - Valley Tech Corporation | — | — | 0 |
| AS3956US | TX-METRO - Texas Metronet | — | — | 0 |
| AS3638US | GLOBALI - Shaman Exchange, Inc. | — | — | 0 |