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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| — |
| — |
| 0 |
| AS1502US | DNIC-ASBLK-01500-01502 - Headquarters, USAISC | — | — | 0 |
| AS1468US | DNIC-ASBLK-01467-01468 - Headquarters, USAISC | — | — | 0 |
| AS1467US | DNIC-ASBLK-01467-01468 - Headquarters, USAISC | — | — | 0 |
| AS1263US | AS1263 - National Aeronautics and Space Administration | — | — | 0 |
| AS509US | DNIC-AS-00509 - United States Department of Defense (DoD) | — | — | 0 |
| AS1060US | SUNWEST-BANK - Sunwest Bank | — | — | 0 |
| AS197962US | HOOP7MOBILETELECOM-AS 7HOOP MOB TELECOM LLC | — | 98.3K | 24 |
| AS6016US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6441US | BIGBOOK - BigBook | — | — | 0 |
| AS6393US | PRYSM-AS - Prysm Technologies | — | — | 0 |
| AS6390US | KANSASCITY - The Kansas City Star | — | — | 0 |
| AS6165US | AS-LYRIS - Lyris Technology Inc. | — | — | 0 |
| AS6500US | NEXUS-22-6500 - Nexusguard, Inc | — | — | 0 |
| AS6137US | SISNA - SISNA, Inc. | — | — | 0 |
| AS11161US | DIGITALVIRT - DigitalVirt | — | 1 | 1 |
| AS7269US | ONESOURCE - OneSource Information Services,Inc | — | — | 0 |
| AS5959US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS7333US | ATH - AMERICAN TECHNOLOGY HOLDINGS, INC. | — | — | 0 |
| AS3928US | VALLEY-TECH - Valley Tech Corporation | — | — | 0 |
| AS22053US | ARENAONE - Arena One, LLC | — | — | 0 |
| AS20301US | AS20301 - National Aeronautics and Space Administration | — | — | 0 |
| AS20415US | COUNCILROCKSD-PA - Council Rock School District | — | — | 0 |
| AS20240US | VENTURAFOODS - VENTURA FOODS, LLC | — | — | 0 |
| AS61387US | Cloudco-LLC Cloudco LLC | — | 1 | 1 |
| AS2987US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS19828US | MARICOPA - Orbitel Communications, LLC | — | — | 0 |
| AS3016US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3008US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2935US | CDOLNET-GOV - Connecticut Department of Labor | — | — | 0 |
| AS2972US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2911US | CITI4 - Citigroup Inc. | — | — | 0 |
| AS11006US | HRT-SCS - HRTec | — | 65.7K | 2 |
| AS22327US | CIMATELECOM2 - Cima Telecom, Inc. | — | — | 0 |
| AS2035US | NGIS-AS3 - Northrop Grumman Corp. | — | — | 0 |
| AS1868US | DISN-PILOTNET14 - RTX BBN Technologies, Inc. | — | — | 0 |
| AS1728US | SRI-TPA-GW1 - SRI-TPA-gw1 | — | — | 0 |
| AS4031US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS4042US | VERO-NETWORKS-AS4042 - Vero Broadband | — | — | 0 |
| AS4002US | COGENT-4000 - Cogent Communications, LLC | — | — | 0 |
| AS402664US | EHOCGL - Evergreen | — | 2.6M | 5 |
| AS3463US | LOGIN-NONAZ - Login, Inc. | — | — | 0 |
| AS3761US | UTOPIA-FIBER-IT - UTOPIA | — | — | 0 |
| AS3619US | MCIASN-BLK - Verizon Business | — | — | 0 |
| AS3612US | DELL-BLK - Dell, Inc. | — | — | 0 |
| AS598US | CENTURYLINK-LEGACY-LVLT-598 - Level 3 Parent, LLC | — | — | 0 |
| AS53841US | RAMHOST - RAM Host | — | 12.3K | 3 |