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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. | 211.2M | 21,133 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,235 |
| 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 | 48.8M | 3,614 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,941 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,429 |
| 2K |
| — |
| 1 |
| AS202021US | RSOE-EU Take-Two Interactive Software, Inc. | 2K | — | 5 |
| AS46812US | LCS - London Computer Systems, Inc | 2K | — | 8 |
| AS22422US | BOARD-OF-ELECTIONS-IN-THE-CITY-OF-NEW-YORK - Board of Elections in the City of New York | 2K | — | 1 |
| AS19579US | THEVILLAGES - The Villages Operating Company | 2K | — | 1 |
| AS4880US | LIFELINE-ASN - Lifeline Systems, Company | 2K | — | 6 |
| AS36591US | ZULUCARE - PixelRiver | 2K | — | 3 |
| AS26876US | CHICOS - chico's fas inc | 2K | — | 6 |
| AS23521US | BSERV-1-AS-23521 - Finastra Merchant Services, Inc. | 2K | — | 2 |
| AS36252US | TNWEB-LEW-001 - TNWEB LLC | 2K | — | 1 |
| AS398448US | MFSTNET-AS - THE GENTRY FUND LLC | 2K | 65.5K | 5 |
| AS401243US | KOMI-NET - Komi LLC | 2K | 61 | 54 |
| AS394381US | L7-CONNECT - L7 Connect | 2K | — | 8 |
| AS398311US | IT-AUDITORS-PR-CORP - IT Auditors PR, Corp. | 2K | — | 5 |
| AS18787US | DANAHER - Danaher | 2K | — | 6 |
| AS21568US | NYTD - The New York Times Company | 2K | — | 1 |
| AS26087US | GARDNER-WEBB - Gardner-Webb University | 2K | — | 1 |
| AS12243US | WADDELL - Waddell Solutions Group LLC | 2K | 65.8K | 10 |
| AS20338US | MYTELASN - My Telepath, Inc | 2K | — | 1 |
| AS8143US | NEBUSRT - Neburst LLC | 2K | 3 | 11 |
| AS17269US | NCFB-ASN - North Carolina Farm Bureau Mutual Insurance Company Inc | 2K | — | 3 |
| AS36797US | RURAL-BROADBAND-NETWORK-SERVICES-LLC - Rural Broadband Network Services LLC | 2K | 65.5K | 3 |
| AS19320US | FLEX-WDF - Flextronics International USA, Inc. | 2K | — | 4 |
| AS400285US | GUSD-AS - Gilbert Public Schools | 2K | — | 3 |
| AS401416US | AURA-AS - Aurascape, Inc. | 2K | 512 | 10 |
| AS7003US | GNET-ARIN-AS - GNET INC. | 2K | — | 5 |
| AS53797US | PINPOINTE-N1 - Pinpointe On-Demand, Inc. | 2K | — | 1 |
| AS46994US | TELAX09 - Telax Hosted Call Centre | 2K | — | 3 |
| AS17093US | FAIRPOINT - Fidium | 2K | — | 5 |
| AS33438US | DATUM-CLOUD - Datum | 2K | 81 | 14 |
| AS397340US | GLASTEL-ISP - Glasford Telephone Company | 2K | — | 4 |
| AS32194US | ASN-PHOENIX-CHILDRENS - PHOENIX CHILDREN'S HOSPITAL | 2K | — | 5 |
| AS54312US | ROCKETFUEL - Rocket Fuel Inc. | 2K | — | 7 |
| AS30568US | VCS-AS - M3COM of Virginia, Inc | 2K | — | 5 |
| AS12076US | MICROSOFT - Microsoft Corporation | 2K | 3 | 5 |
| AS400457US | HWL-BROADBAND-01 - Hope Water and Light | 2K | — | 2 |
| AS14205US | RPAPSL-14205 - Riviera Park Alameda Padre Serra LLC | 2K | — | 2 |
| AS40942US | CAPECODCC - Cape Cod Community College | 2K | — | 1 |
| AS395349US | CLOUDSAFE-PROVIDER - Cloudsafe, Ltd. | 2K | 65.5K | 7 |
| AS36741US | FRONTIER-AIRLINES-INC - FRONTIER AIRLINES INC | 2K | 258 | 8 |
| AS26490US | PIKE-EXTERNAL-BGP - Pike Enterprises, LLC | 2K | — | 1 |
| AS26362US | TRAVISCU - Travis Credit Union | 2K | — | 4 |
| AS22480US | SOCOLO-AS - Beulahland Communications, LLC | 2K | — | 4 |
| AS398981US | FSCJ - FSCJ | 2K | — | 5 |
| AS395516US | TERADATACORP - Teradata Operations, Inc. | 2K | — | 8 |
| AS32778US | SMART-CITY-SCCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 2K | — | 3 |
| AS400595US | 281-COMMUNICATIONS-CORPARATION-INC - 281 Communications Corporation Inc. | 2K | — | 3 |