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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 |
| AS206116US | GATE-AS-EU Gate Communications LLC | — | — | 0 |
| AS203975US | Zorn-Technologies Zorn Technologies LLC | — | — | 0 |
| AS136025US | ORACLE-AS-AP - Oracle Corporation | — | — | 0 |
| AS55074US | DIALOGTECH-EAST - Invoca, Inc. | — | — | 0 |
| AS63384US | PEDCOR - PEDCOR INVESTMENTS | — | — | 0 |
| AS63375US | FULLSPANSOLUTIONS-AS02 - Full Span Solutions LLC | — | — | 0 |
| AS135271US | GLOBTELGROUP-AS-AP - Global Telecom Group LLC | — | — | 0 |
| AS63218US | ARIN-WEBINAR - American Registry for Internet Numbers | — | — | 0 |
| AS46570US | CBLT-INTEGRALINK - The Cobalt Group | — | — | 0 |
| AS46538US | MANTARA - Mantara Inc. | — | — | 0 |
| AS54255US | BS - Bitstine LLC | — | — | 0 |
| AS58251US | PANDA-AS Panda Network,Inc | — | — | 0 |
| AS46465US | WBH-46465 - William Beaumont Hospital | — | — | 0 |
| AS54000US | ARC-INTERNET - Augusta Georgia | — | — | 0 |
| AS53637US | BASS3 - Signature Aviation USA, LLC | — | — | 0 |
| AS53977US | AMERICA-FUJIKURA - AFL Telecommunications LLC | — | — | 0 |
| AS46847US | NEXVORTEX - nexVortex | — | — | 0 |
| AS53300US | EMBARK-CORPORATION - Embark Corp | — | — | 0 |
| AS47192US | ASS-136-47192 - AZSIGNSHOP LLC | — | — | 0 |
| AS53422US | BRIVOSYSTEMS - Brivo Systems, LLC | — | — | 0 |
| AS396471US | DECIX-HOU-AS - DE-CIX North America Inc. | — | — | 0 |
| AS396466US | THE-FRICK-COLLECTION - The Frick Collection | — | — | 0 |
| AS3906US | ADS-1-AS - Advanced Data Systems | — | — | 0 |
| AS29760US | UNITI-M2 - Uniti Fiber Holdings Inc. | — | — | 0 |
| AS27318US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS27267US | NETACTUATE - NetActuate, Inc | — | — | 0 |
| AS27084US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS11728US | RTGL-11728 - Harborvault | — | — | 0 |
| AS19645US | IXSYSTEMS - iXSystems, Inc | — | 1 | 1 |
| AS3990US | UTELFLA - Sprint/United Telephone-Florida | — | — | 0 |
| AS1599US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1755US | AS1755 STUPI LLC | — | — | 0 |
| AS1333US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1867US | DISN-PILOTNET13 - RTX BBN Technologies, Inc. | — | — | 0 |
| AS27452US | ICI-SJ - Incomm | — | — | 0 |
| AS1450US | DNIC-AS-01450 - Headquarters, USAISC | — | — | 0 |
| AS2881US | RHGC-AS - Rensselaer Hartford Graduate Center | — | — | 0 |
| AS3519US | DSI-WR - RTX BBN Technologies, Inc. | — | — | 0 |
| AS3074US | CITI8 - Citigroup Inc. | — | — | 0 |
| AS3116US | PPCI - Point to Point Communications, Inc. | — | — | 0 |
| AS2938US | SPRINT-MRN - U.S. Sprint | — | — | 0 |
| AS3546US | DNIC-AS-03546 - United States Department of Defense (DoD) | — | — | 0 |
| AS62655US | TRANSFORMATIVEMED - TransformativeMed, Inc. | — | — | 0 |
| AS3764US | IA-HOU-AS - JAB Wireless, INC. | — | — | 0 |
| AS54708US | TRUECOMMERCE - True Commerce, Inc. | — | — | 0 |
| AS54504US | HEITAS - Heitman LLC. | — | — | 0 |