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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 | 21,026 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,220 |
| 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 | 3,585 |
| 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 | 4,534 |
| 4.1K |
| 65.5K |
| 2 |
| AS46598US | SOUTHERN-OHIO-COMMUNICATION-SERVICES - Southern Ohio Communication Services | 4.1K | — | 3 |
| AS397608US | HCAS-4 - Hanson Communications, Inc. | 4.1K | — | 6 |
| AS25915US | WSWHE-NET - WASHINGTON SARATOGA WARREN HAMILTON & ESSEX BOCES | 4.1K | 16 | 2 |
| AS19856US | BRAZOSPORT-COLLEGE - Brazosport College | 4.1K | — | 1 |
| AS7384US | INTUIT - Intuit Inc. | 4.1K | — | 16 |
| AS396926US | CSPIRE-MISSION-01 - C Spire Fiber | 4.1K | — | 1 |
| AS26674US | ARGON-TECHNOLOGIES-INCORPORATED - Argon Technologies, Inc. | 4.1K | — | 1 |
| AS21854US | DP-IS - Digital Passage, Inc. | 4.1K | 65.5K | 17 |
| AS399359US | MAX - Maxcy | 4.1K | — | 16 |
| AS18826US | AS18826 - 1966 | 4.1K | — | 1 |
| AS22068US | TJC-62001 - Tyler Junior College | 4.1K | — | 2 |
| AS19939US | BCTELCO - Beaver Creek Telephone Company | 4.1K | — | 1 |
| AS401288US | CL-BROADBAND - C&L Broadband Connect, LLC | 4.1K | 65.5K | 2 |
| AS40197US | NBS-72 - Nextlink Broadband | 4.1K | — | 1 |
| AS11109US | SAISD-1 - State of Alabama, Office of Information Technology | 4.1K | — | 16 |
| AS54985US | AS-PIN - PIN LLC | 4.1K | — | 1 |
| AS19555US | KMI-NETWORK - Kinder Morgan, Inc. | 4.1K | — | 1 |
| AS395643US | CORONA-NORCOUSD - Corona-Norco Unified School District | 4.1K | — | 16 |
| AS54979US | ZEECON - Zeecon Wireless Internet L.L.C. | 4.1K | — | 1 |
| AS30035US | HEAVENWIRE - Mobilcomm, Inc | 4.1K | — | 16 |
| AS46699US | TWRS-HOU - Towerstream | 4.1K | — | 2 |
| AS12273US | TRUELINK - Transunion Interactive, Inc. | 4.1K | — | 12 |
| AS396334US | ORU-ASN - Oral Roberts University | 4.1K | — | 9 |
| AS26123US | ITU-NET-1 - Independence Telecommunications Utility | 4.1K | 65.5K | 6 |
| AS11889US | IVANET-DAL - iBasis, Inc. | 4.1K | 256 | 14 |
| AS17322US | NAVIGY-HOLDINGS - Navigy Holdings, Inc. | 4.1K | — | 1 |
| AS27403US | APA-CTY - Apache County Board of Supervisors | 4.1K | — | 1 |
| AS33254US | OMERESA - Ohio Mid Eastern Regional Education Service Agency | 4.1K | — | 9 |
| AS201682US | LIQUID-WEB-BV Liquid Web B.V. | 4.1K | 65.5K | 5 |
| AS6994US | FASTMETRICS - Fastmetrics | 4.1K | — | 1 |
| AS46494US | CHRISCOMCO - Christensen Communications Company | 4.1K | — | 3 |
| AS40200US | ASN-MUNSON-CHARTER-ATT - Munson Healthcare | 4.1K | — | 2 |
| AS23027US | BOINGO - Boingo Wireless, Inc. | 4.1K | — | 1 |
| AS33638US | SCOTTS-AS - CITY OF SCOTTSBURG | 4.1K | — | 2 |
| AS16679US | BSD403-ASN-111 - BETHEL SCHOOL DISTRICT 403 | 4.1K | — | 1 |
| AS19162US | MBI-AS-1 - The Moody Bible Institute of Chicago | 4.1K | — | 1 |
| AS32554US | MCIU - Montgomery County Intermediate Unit | 4.1K | 65.5K | 2 |
| AS7962US | EXISNET - EXISNET INC | 4.1K | — | 1 |
| AS16706US | ORTHONE - NORTHEAST ORTHOPAEDIC CLINIC, LLP | 4.1K | — | 16 |
| AS33197US | DATACANOPY-SFO01 - Sidus Group, LLC | 4.1K | 65.8K | 6 |
| AS23548US | THEDACARE - Thedacare | 4.1K | — | 1 |
| AS401377US | PUMASERVNET - PUMA SERVERS LLC | 4.1K | — | 1 |
| AS26891US | NEWCLOUD - Otava, LLC | 4.1K | 1 | 17 |
| AS12234US | UUNET-INT - Verizon Business | 4.1K | — | 7 |
| AS46759US | CIA-ASN - Culinary Institute of America | 4.1K | — | 1 |
| AS395098US | RFIH-NET1 - Retail Finance International Holdings, Inc. | 4.1K | — | 10 |