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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 |
| AS11263US | BELLTOWER - Bell Tower Integration, Inc. | — | 2 | 2 |
| AS5289US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5701US | HEALTH-ONE - HealthOne | — | — | 0 |
| AS5636US | LISTING - NetWork Access | — | — | 0 |
| AS10451US | WARPDRIVE - Warpdrive Networks | — | — | 0 |
| AS5919US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5250US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS6174US | COGENT-6174 - Cogent Communications, LLC | — | — | 0 |
| AS216225US | qprisk Quest & Pearson LLC | — | 32 | 2 |
| AS10669US | JOBTRAK-AS - Jobtrak Corp. | — | — | 0 |
| AS5897US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5805US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS253US | NTTA-253 - NTT America, Inc. | — | — | 0 |
| AS403064US | CITYOFSHELBY-ASN - City | — | — | 0 |
| AS218324US | LAB-TRAUMATECH James Sturdevant | — | 1 | 1 |
| AS480US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS402690US | PCSD25 - Pocatello | — | — | 0 |
| AS402589US | SYNIAC - Syniac | — | — | 0 |
| AS402576US | PITL2-UA-AS - PRIMEUNITY | — | — | 0 |
| AS403US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS5132US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | 6 | 6 |
| AS1557US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS202467US | BISMANLAN-AS Nicholas Walz | — | 257 | 2 |
| AS5944US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS4349US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4446US | INFINET-ASN - Infinet Technologies and Services | — | — | 0 |
| AS4394US | DSI-CUST-BLK2 - Houston Associates, Inc. | — | — | 0 |
| AS4248US | CYBERTRIBE - Nexus System | — | — | 0 |
| AS4272US | MDN - Metropolitan Data Networks | — | — | 0 |
| AS1036US | APPLE-RETAIL - Apple Inc. | — | — | 0 |
| AS10601US | ELNET - elNet - Electro Link Network, Inc. | — | — | 0 |
| AS10305US | VERINET - Verinet Communications, Inc. | — | — | 0 |
| AS982US | PACKETFRAME - Packetframe | — | 1 | 1 |
| AS1285US | CMC-AS - Communication Machinery Corporation | — | — | 0 |
| AS8098US | IFN - Internet Financial Group | — | — | 0 |
| AS1450US | DNIC-AS-01450 - Headquarters, USAISC | — | — | 0 |
| AS1434US | DWIM-590 - DW Partners, LP | — | — | 0 |
| AS960US | ORTHOFIX-IDC - Orthofix Medical INC | — | — | 0 |
| AS401009US | JSMSR-NETWORK - JSMSR Network | — | 321 | 3 |
| AS733US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS210836US | ASTROPHAGE Edward Behling | — | 16 | 1 |
| AS402938US | DNAMOBILITY - DNA | — | — | 0 |
| AS2646US | CONEXANT - Synaptics Incorporated | — | — | 0 |
| AS1986US | DNIC-AS-01986 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1976US | DNIC-AS-01976 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS402724US | ZYNTY - Zynty | — | — | 0 |