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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. | 210.9M | 21,022 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,223 |
| 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 | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,586 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,933 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,550 |
| INFORTECH-001 - Infortech Corporation |
| 8.2K |
| — |
| 32 |
| AS46473US | SIMPLEFIBER - SimpleFiber Communications LLC | 8.2K | — | 2 |
| AS13882US | HFI-18-13882 - HARTFORD FIRE INSURANCE COMPANY | 8.2K | — | 26 |
| AS8131US | PEPBOYS - Pep Boys | 8.2K | — | 2 |
| AS26792US | CSSNW - CSS Integration, Inc. | 8.2K | 65.5K | 5 |
| AS15278US | SAVVY-NET - Savvy Networks USA | 8.2K | — | 1 |
| AS396485US | SLU-4-ASN - St. Lawrence University | 8.2K | — | 1 |
| AS31997US | ZONEALARM-COM - Check Point Software Technologies, Inc. | 8.2K | 1 | 30 |
| AS26894US | NOACSC-AS - Northwest Ohio Area Computer Services Cooperative | 8.2K | — | 1 |
| AS19082US | EVERESTBROADBAND - Everest BBN, Inc. | 8.2K | — | 1 |
| AS22601US | BONNPOWERNET - Bonneville Power Administration | 8.2K | 260 | 7 |
| AS19170US | MISN - Meramec Interactive Services Network | 8.2K | 65.5K | 3 |
| AS19299US | NPC-P1 - The Northern Trust Company | 8.2K | — | 10 |
| AS394712US | NYSOSC - New York State Office of the State Comptroller | 8.2K | — | 1 |
| AS15304US | WASHOE-NET - Washoe County | 8.2K | — | 2 |
| AS54291US | SJH-ASN01 - Inspira Medical Centers, Inc. | 8.2K | — | 2 |
| AS397103US | WAVEFLY-AS397103 - REV | 8.2K | — | 3 |
| AS26748US | AS-HSHS - Hospital Sisters Health Systems | 8.2K | — | 1 |
| AS30698US | BOSCH - Robert Bosch LLC | 8.2K | 65.8K | 34 |
| AS46825US | CBPU - Coldwater Board of Public Utilities | 8.2K | 65.5K | 2 |
| AS19616US | ACCESS-OHIO - ACCESS | 8.2K | — | 3 |
| AS63267US | FAYETTEVILLEPUBLICUTILITIES-TN - Fayetteville Public Utilities | 8.2K | 4.1K | 18 |
| AS395685US | ONTARIO-TELEPHONE-COMPANY - Ontario Telephone Company Inc | 8.2K | — | 6 |
| AS32614US | HDISS-NET - High Desert Internet Services | 8.2K | — | 8 |
| AS63400US | LUBBOCKISD-ASN - Lubbock Independent School District | 8.2K | — | 3 |
| AS40395US | VIRTBIZ-DALLAS - VIRTBIZ Internet Services | 8.2K | 65.5K | 33 |
| AS23497US | NCWCOM - NORTH COAST WIRELESS COMMUNICATIONS LLC | 8.2K | — | 32 |
| AS393289US | MERCERU-GA-ASN - Mercer University | 8.2K | — | 1 |
| AS47064US | ESCXV - Education Service Center Region XV | 8.2K | — | 1 |
| AS54512US | CHICKTEL-AS-1 - Chickamauga Telephone Corporation | 7.9K | — | 7 |
| AS33167US | SWOCA-TWASSIGNED - Southwest Ohio Computer Association | 7.9K | — | 7 |
| AS5015US | SHOUTING - Shouting Ground Technologies | 7.9K | — | 12 |
| AS395366US | MCKINSEY-GLOBAL - McKinsey & Company, Inc. | 7.9K | — | 31 |
| AS54304US | WCSD6 - Weld County School District Six | 7.9K | — | 5 |
| AS8161US | INSIGHT-AS - Insight Direct USA, Inc. | 7.9K | — | 16 |
| AS26073US | COFRACTAL-001 - Cofractal, Inc. | 7.9K | 1.1M | 40 |
| AS11612US | READYTEL-NC - Ready Telecom, Inc. | 7.9K | — | 16 |
| AS12222US | AKAMAI - Akamai Technologies, Inc. | 7.9K | 113 | 143 |
| AS3714US | KEC-NET - Kentucky Educational Computing Network | 7.9K | 65.5K | 9 |
| AS46616US | WESTI-INET-AS - Westinghouse Electric Company LLC | 7.9K | 1 | 10 |
| AS33176US | DTCCAAS - DTC Cable | 7.9K | — | 8 |
| AS23173US | VOYA-FINANCIAL - CITISTREET | 7.9K | — | 17 |
| AS20419US | NETBLK-DMRCOM - DMR Communications Inc. | 7.9K | — | 7 |
| AS10689US | FVI-CHI - Fox Valley Internet | 7.9K | — | 31 |
| AS46149US | USI-2-ASN - University of Southern Indiana | 7.9K | 4.1K | 7 |
| AS54947US | ZENIMAXONLINE - ZeniMax | 7.9K | — | 15 |
| AS11517US | BLUE-CROSS-AND-BLUE-SHIELD-OF-MINNESOTA - Blue Cross & Blue Shield of Minnesota | 7.9K | — | 17 |