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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,240 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,941 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| — |
| 3 |
| AS1826US | UNIVERSITY-OF-ARKANSAS-FORT-SMITH - University of Arkansas-Fort Smith | 1K | — | 1 |
| AS19321US | UMC-HEALTH-SYSTEM - University Medical Center | 1K | — | 2 |
| AS399910US | SIPNAV - SipNav LLC | 1K | 256 | 5 |
| AS62914US | MFI-ASN - Mattress Firm, Inc. | 1K | — | 4 |
| AS397889US | CARIBE-ASN - Caribe Royale | 1K | — | 4 |
| AS46575US | WSSC-AS - Washington Suburban Sanitary Commission | 1K | — | 3 |
| AS33445US | YELP - Yelp! Inc. | 1K | — | 4 |
| AS39998US | WEBSERVIO-COLO-KNOXVILLE - Webservio, Inc. | 1K | — | 4 |
| AS394393US | UKIAHWIRELESS - Wi-Fiber, Inc. | 1K | — | 1 |
| AS396966US | CESL-21-ASN-396966 - Claro Enterprise Solutions, LLC | 1K | 8 | 12 |
| AS14539US | VLABS - Vantage Labs LLC | 1K | — | 4 |
| AS23462US | SAUNSTAR-PARKPLAZA - SaunStar Operating Company, LLC | 1K | — | 1 |
| AS33010US | INTERCHURCH - The Interchurch Center | 1K | — | 1 |
| AS394012US | WGR-AS - Westgate Resorts Ltd | 1K | — | 4 |
| AS46292US | MOJAVEWIFI-COM-CA-1 - Mojavewifi.com LLC | 1K | 65.5K | 5 |
| AS401798US | GSCCCA-NET - GSCCCA | 1K | — | 3 |
| AS395581US | SIMSMM-US-INET - Metal Management, Inc. | 1K | — | 1 |
| AS46670US | MARKETING-ASSOCIATES-LLC - MARKETING ASSOCIATES, LLC | 1K | — | 4 |
| AS36101US | APU-AS - Azusa Pacific University | 1K | — | 4 |
| AS399193US | NAVAJO-TECHNICAL-UNIVERSITY - Navajotech | 1K | — | 1 |
| AS19761US | SLEDGE - Sledge Telephone Company | 1K | — | 4 |
| AS18490US | VTLA - NTT Global Networks Incorporated | 1K | — | 4 |
| AS31977US | FECRWY-1 - Florida East Coast Railway LLC | 1K | — | 4 |
| AS32751US | NUCLEARFALLOUT-SEA - Nuclearfallout Enterprises, Inc. | 1K | 4.1K | 5 |
| AS62134US | IHNET-EU IHNetworks, LLC | 1K | — | 1 |
| AS396120US | DONUTSHIELD - DonutSMP | 1K | — | 3 |
| AS20306US | ADELPHI - Adelphi University | 1K | 5 | 6 |
| AS400425US | NRH4301 - CITY OF NORTH RICHLAND HILLS | 1K | — | 4 |
| AS10490US | SOUTHERN-CROSSROADS-SOX - Georgia Institute of Technology | 1K | 65.5K | 2 |
| AS22846US | DTVLA - DIRECTV Latin America, LLC | 1K | — | 4 |
| AS399723US | LYNXXNETWORKS01 - Lynxx Networks | 1K | — | 1 |
| AS32430US | BCPO - Bergen County Prosecutors Office | 1K | — | 4 |
| AS46459US | ADSALARM - Alarm Detection Systems, Inc | 1K | — | 3 |
| AS16388US | AS-PTI - Protronics Technologies, Inc. | 1K | — | 1 |
| AS31784US | BAINBRIDGE-1 - City of Bainbridge | 1K | 65.5K | 2 |
| AS210781US | BRAINPS-AS Brain PEACE Science Foundation, Inc. | 1K | — | 3 |
| AS11794US | 3C-WIRELESS - 3C Wireless, LLC | 1K | — | 1 |
| AS399639US | LAKELAND-COMMUNICATIONS - Lakeland Communications | 1K | 65.5K | 2 |
| AS36550US | MA-MORTENSON-COMPANY - M. A. Mortenson Company | 1K | — | 3 |
| AS398252US | BRC-YORKNE-01 - Big Red Communications LLC | 1K | — | 4 |
| AS22727US | USADATANET - WCS | 1K | — | 4 |
| AS36809US | COCG---CITY-OF-CORAL-GABLES - City of Coral Gables | 1K | — | 1 |
| AS33046US | WESTERN-FARMERS-ELECTRIC-COOPERATIVE - WESTERN FARMERS ELECTRIC COOPERATIVE | 1K | — | 3 |
| AS21613US | QUINAULT-INDIAN-NATION - Quinault Indian Nation | 1K | — | 1 |
| AS46185US | MAXSIP - Maxsip Telecom Corp | 1K | — | 4 |
| AS26579US | WALMART-DR - Wal-Mart Stores, Inc. | 1K | — | 3 |