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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 | 25,247 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| 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.
32,189 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 | 3,901 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,010 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,222 |
| 2K |
| — |
| 7 |
| AS3826US | HILTON-C - Hilton Worldwide Holdings Inc | 2K | — | 2 |
| AS402482US | ABTS-INTERNET2 - American | 2K | — | 3 |
| AS396298US | ACRETO - Acreto | 2K | 38 | 12 |
| AS17269US | NCFB-ASN - North Carolina Farm Bureau Mutual Insurance Company Inc | 2K | — | 3 |
| AS11046US | LITTLE-APPLE - Little Apple Technologies | 2K | — | 8 |
| AS19579US | THEVILLAGES - The Villages Operating Company | 2K | — | 1 |
| AS26835US | MAPOLCE - M.A. POLCE CONSULTING INC. | 2K | — | 3 |
| AS40548US | INFINERA-US - Nokia of America Corporation | 2K | — | 5 |
| AS40947US | FWOCE-AS42 - Franklin W. Olin College Of Engineering | 2K | — | 5 |
| AS30568US | VCS-AS - M3COM of Virginia, Inc | 2K | — | 5 |
| AS26224US | INCOMM-NET0 - InComm | 2K | — | 5 |
| AS33069US | AS-BUSINESS-COMMUNICATIONS - BCI | 2K | 65.5K | 3 |
| AS55056US | CBC-ISPA-CUSTFACING - Central Bancompany, Inc. | 2K | — | 6 |
| AS54407US | ARENT-FOX-LLP - ArentFox Schiff LLP | 2K | — | 8 |
| AS397641US | ARAMARK-NS2-SCO - ARAMARK | 2K | — | 8 |
| AS18439US | NNVHS - Northern Nevada High Speed LLC | 2K | 131.1K | 9 |
| AS400US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 2K | — | 1 |
| AS64281US | NET3-ISP - Ridgewood Holdings LLC | 2K | — | 6 |
| AS22012US | REALOGY-MADISON - NRT Inc. | 2K | — | 5 |
| AS13482US | ZWEIG-DIMENNA - Zweig-DiMenna Associates, LLC. | 2K | — | 1 |
| AS53283US | LITWARE - Litware LLC | 2K | 65.5K | 10 |
| AS46536US | VIASAT-CARLSBAD - ViaSat, Inc. | 2K | — | 8 |
| AS26716US | NETCRACKER - NetCracker Technology, Corporation | 2K | 1 | 9 |
| AS205958US | Global-Network-Point-LLC Global Network Point LLC | 2K | 524.3K | 5 |
| AS64224US | ATINET - ATI Solutions | 2K | 5.1K | 11 |
| AS393819US | LACKAWANNA-COUNTY - Lackawanna County Government | 2K | 65.5K | 6 |
| AS27392US | 639-DATACENTERS - 639 DC Main LLC | 2K | 259 | 12 |
| AS23137US | SATCOM-DIRECT-INC - Satcom Direct Inc. | 2K | — | 2 |
| AS26921US | CYBERSHARKS-NET - CYBERSHARKS.NET | 2K | — | 1 |
| AS13913US | AFFILIATED - Affiliated Monitoring, Inc. | 2K | — | 8 |
| AS14303US | MEMASN1 - City of Memphis | 2K | — | 2 |
| AS14205US | RPAPSL-14205 - Riviera Park Alameda Padre Serra LLC | 2K | — | 2 |
| AS19272US | RCL-268-19272 - Rochester Colo LLC | 2K | 65.5K | 2 |
| AS401964US | OUTSCALE-INC - OUTSCALE INC | 2K | — | 1 |
| AS54312US | ROCKETFUEL - Rocket Fuel Inc. | 2K | — | 7 |
| AS399064US | CONTENTGURU-US - Content Guru Inc | 2K | — | 8 |
| AS20338US | MYTELASN - My Telepath, Inc | 2K | — | 1 |
| AS402309US | AS-AURO - AuroraNetworks LLC | 2K | — | 5 |
| AS398311US | IT-AUDITORS-PR-CORP - IT Auditors PR, Corp. | 2K | — | 5 |
| AS12076US | MICROSOFT - Microsoft Corporation | 2K | 6 | 8 |
| AS22955US | CHHS-1 - Children's Hospital & Health System, Inc. | 2K | — | 5 |
| AS398448US | MFSTNET-AS - THE GENTRY FUND LLC | 2K | 65.5K | 5 |
| AS36451US | RIGETTI-BERKELEY-01 - Rigetti Computing | 2K | — | 5 |
| AS19621US | MID-ASNO - MODESTO IRRIGATION DISTRICT | 2K | — | 5 |
| AS398224US | UNITEDBANK-01 - United Bankshares, Inc. | 2K | — | 4 |
| AS11716US | WON-AS - William O'Neil & Company | 2K | — | 8 |