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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 | 21,015 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,222 |
| 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 | 3,584 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,935 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,561 |
| 12.8K |
| 65.5K |
| 11 |
| AS29696US | ECARTHAGE - Carthage Water and Electric | 12.8K | — | 28 |
| AS38551US | JPMORGAN-TRANSIT-AS-AU - JPMORGAN Australia | 12.8K | 8 | 9 |
| AS19746US | MMU-FIBER - Marshall Municipal Utilities | 12.8K | — | 25 |
| AS30059US | ZIMCOM - Zimcom Network Solutions Inc. | 12.8K | — | 16 |
| AS5671US | PBI-NET-BLK - AT&T Enterprises, LLC | 12.8K | — | 4 |
| AS40009US | BITGRAVITY - BitGravity, Inc. | 12.8K | 27 | 70 |
| AS17200US | SEATTLECOLL - Seattle Community College District | 12.8K | — | 5 |
| AS19754US | FNL-33-19754 - The Fusion Network, LLC | 12.8K | 65.5K | 46 |
| AS398052US | MECHANICSVILLE - Mechanicsville Telephone Company | 12.8K | 65.5K | 25 |
| AS204764US | AS_MWS_EUR Kyndryl, Inc. | 12.8K | — | 14 |
| AS36100US | MTC-BROADBAND - MTC Broadband, Inc. | 12.8K | — | 24 |
| AS17077US | BROADCAST-NETWORKS - Broadcast Networks, LLC. | 12.8K | — | 14 |
| AS53423US | BRAZOSWIFI - Brazos WiFi | 12.8K | — | 13 |
| AS397422US | MINET01 - MINET | 12.8K | — | 29 |
| AS30200US | DERBY - DerbyTech Computer Works | 12.8K | — | 20 |
| AS22504US | LORETTOCOMM - LORETTO COMMUNICATION SERVICES, INC. | 12.8K | — | 14 |
| AS396052US | NEAC - North Alabama Electric Cooperative | 12.5K | — | 6 |
| AS14589US | DIGITALWEST-AS - Wave Broadband | 12.5K | 65.5K | 4 |
| AS31882US | ABS-AS1 - ABS Backup Solutions, Inc. | 12.5K | — | 18 |
| AS14212US | SANTA-CRUZ-EDNET - Santa Cruz County Office of Education | 12.5K | 1 | 4 |
| AS47049US | CERMAK-COLO-PUBLIC - HNI Corporation | 12.5K | — | 12 |
| AS394907US | NORTHLANDCOMMUNICATIONS-NC-398 - Northland Communications Inc. | 12.5K | 65.5K | 11 |
| AS10886US | MAX-GIGAPOP - University of Maryland | 12.5K | 386 | 13 |
| AS11054US | LIVEPERSON - LivePerson, Inc. | 12.5K | 40 | 69 |
| AS22136US | NYCT - New York Connect | 12.5K | 65.5K | 4 |
| AS397360US | TSTCH-ASN - Texas State Technical College Harlingen | 12.5K | — | 4 |
| AS46276US | SMARTERBROADBAND - SmarterBroadband | 12.5K | 65.5K | 8 |
| AS5773US | BCN-TELECOM-ASN2 - BCN Telecom Inc. | 12.5K | — | 49 |
| AS13315US | HBSNET - Harvard Business School | 12.5K | — | 3 |
| AS30119US | PLUMAS-SIERRA-TELECOMMUNICATIONS - Plumas Sierra Telecommunications | 12.5K | 4.1K | 17 |
| AS21915US | MCOEORG95340 - Merced County Office of Education | 12.5K | 2 | 10 |
| AS399353US | NETAFY-INC - Netafy, Inc. | 12.5K | 256 | 16 |
| AS101US | WASH-NSF-AS - University of Washington | 12.5K | 114.7K | 10 |
| AS26076US | INFINITECOM - Block Line Systems, LLC | 12.5K | 65.5K | 19 |
| AS26675US | REGIONIVESC - Region IV Education Service Center | 12.5K | — | 49 |
| AS398712US | ISPCONNECTED - ISPCONNECTED CORP | 12.5K | 131.1K | 15 |
| AS3912US | CHECS - CHECS | 12.5K | — | 16 |
| AS11106US | WOLFRAM-AS - Wolfram Research, Inc. | 12.3K | — | 2 |
| AS22163US | TAMHSC - Texas A&M University System Health Science Center | 12.3K | — | 2 |
| AS22952US | CHCCW - Chaparral CableVision | 12.3K | — | 18 |
| AS14574US | RTCCOM - RTC Communications | 12.3K | 65.5K | 3 |
| AS53809US | TTUHSC-ELP - Texas Tech University Health Sciences Center at El Paso | 12.3K | 16 | 3 |
| AS18516US | MOLALLACOM - Molalla Communications Systems Inc. | 12.3K | — | 3 |
| AS14327US | PGE-ONLINE - Portland General Electric Company | 12.3K | — | 3 |
| AS19570US | MAPLETRONICSCOMP - Maple Tronics Computers, Inc. | 12.3K | — | 26 |
| AS63330US | ECTCMN - Emily Cooperative Telephone Company | 12.3K | — | 3 |