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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,749 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,226 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| 13.8K |
| 7 |
| 55 |
| AS398343US | BAXET-GROUP - Baxet Group Inc. | 13.8K | 1M | 50 |
| AS14213US | MONTEREY-BAY-K12 - Monterey County Office of Education | 13.8K | — | 13 |
| AS16761US | FEDMOG-ASN-01 - Tenneco Inc. | 13.8K | — | 37 |
| AS54665US | NGN - North Georgia Network Cooperative, Inc. | 13.8K | 196.6K | 15 |
| AS402135US | CITIZENS-MUTUAL-TELEPHONE-COOPERATIVE-ASN - Citizens Mutual Telephone Cooperative | 13.8K | — | 30 |
| AS54578US | FIBERCOMM - FiberComm LC | 13.8K | — | 13 |
| AS15054US | OMEGA-TX - Northeast Texas Broadband, LLC | 13.8K | 65.5K | 5 |
| AS16564US | ADAMS-WELLS-INTERNET - Adamswells Internet | 13.8K | — | 24 |
| AS19133US | BIRD-HOSTING - Bird Hosting Inc. | 13.8K | 13 | 38 |
| AS13750US | TNSI-AS - Transaction Network Services, Inc. | 13.8K | 33 | 21 |
| AS25694US | ATOMIC - Atomic Data LLC | 13.8K | 65.5K | 8 |
| AS40015US | MOVECLICKLLC - Atlantic Metro Communications II, Inc. | 13.8K | 65.5K | 9 |
| AS39944US | TNA - Telecom North America Inc. | 13.8K | 590.8K | 49 |
| AS30174US | UTA - United Telephone Association, Inc. | 13.8K | 65.5K | 10 |
| AS397301US | THRIVE-BROADBAND - Thrive Broadband, LLC | 14.1K | 24.6K | 50 |
| AS33652US | CMCS - Comcast Cable Communications, LLC | 14.1K | 150 | 182 |
| AS32160US | CTIFIBER - CTI Fiber | 14.1K | 65.5K | 14 |
| AS60558US | SECUREDSERVERS-EU PHOENIX NAP, LLC. | 14.1K | 259 | 33 |
| AS25840US | CASCADE-ACCESS-LLC-CA-ESTOR1 - Cascade Access, LLC | 14.1K | — | 14 |
| AS22534US | CS-TECH-INC - CS Technologies | 14.1K | 65.5K | 7 |
| AS21922US | WEBNET - WorldSpice Technologies | 14.1K | 65.5K | 11 |
| AS399122US | AS-VPSHOUSE - VPS House Technology Group LLC | 14.1K | 74 | 92 |
| AS27365US | CENGAGE-OHCIN - Cengage Learning, Inc. | 14.1K | — | 27 |
| AS30640US | ETHERIC - Etheric Networks, Inc. | 14.1K | 65.5K | 14 |
| AS30437US | GE-MS003 - General Electric Company | 14.1K | — | 52 |
| AS25888US | HPINC - HP Inc. | 14.1K | — | 31 |
| AS33136US | OZARK-FIBER - Ozark Fiber, LLC | 14.1K | — | 22 |
| AS26328US | BLASTCOMM - Blast Communications Inc. | 14.3K | 65.5K | 20 |
| AS12178US | INTERNAP-2BLK - Unitas Global | 14.3K | 65.5K | 8 |
| AS55145US | ECVTD-55145 - ECFiber | 14.3K | — | 9 |
| AS19215US | ENERGIZE - PES Energize | 14.3K | — | 29 |
| AS1423US | RAINBOW-RTCA - Rainbow Communications, L.L.C. | 14.3K | — | 4 |
| AS11516US | ASN-ESB - Eastern Suffolk BOCES | 14.3K | — | 56 |
| AS21873US | NEWMN - Northeast Service Cooperative (ASN-NEWMN) | 14.3K | — | 25 |
| AS4015US | CENTURYLINK-LEGACY-QWEST-SPA-OMAHA - CenturyLink Communications, LLC | 14.3K | 1 | 5 |
| AS40755US | PROTEK-COMMUNICATIONS - ProTek Communications, LLC | 14.3K | — | 11 |
| AS4459US | KDDIA-NET - KDDI America Inc. | 14.3K | 1 | 23 |
| AS36378US | NYIT-AS - New York Institute of Technology | 14.3K | — | 4 |
| AS400521US | OMNI-FIBER-TX - Omni Fiber | 14.3K | 69.6K | 6 |
| AS26848US | PFG-ASN-1 - Principal Financial Group, Inc. | 14.3K | 4.1K | 24 |
| AS22427US | GNET-AS - GNET INC. | 14.3K | — | 56 |
| AS13765US | NEDELCO - Nedelco Inc. | 14.3K | 65.5K | 5 |
| AS14188US | ASHLANDFIBERNETWORK - Ashland Fiber Network | 14.3K | — | 11 |
| AS54119US | WHITESKY-COMMUNICATIONS-2 - WhiteSky Communications, LLC. | 14.3K | — | 55 |
| AS27552US | TWDX - TowardEX Technologies International, Inc. | 14.3K | 69.9K | 16 |
| AS10367US | FIBERCAST - Fibercast Corporation | 14.3K | — | 26 |