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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 | 21,144 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,240 |
| 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 | 49.1M | 3,642 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,945 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,376 |
| 2K |
| — |
| 1 |
| AS393619US | UBX-DT1 - UBX Cloud | 2K | — | 5 |
| AS40790US | BCG-NETWORK - BCG Attorney Search | 2K | — | 2 |
| AS15328US | DATAPRISE-INC - Dataprise, Inc. | 2K | — | 8 |
| AS16766US | ISLAND-TECHNOLOGY-INC - Island Technology, Inc. | 2K | — | 8 |
| AS12110US | AS-INTER - Internex Inc. | 2K | 69.6K | 9 |
| AS46399US | WAVELINC-1 - Wavelinc Communications LLC | 2K | — | 5 |
| AS18874US | MAXAR-ASN - Vantor Parent Inc. | 2K | — | 8 |
| AS20467US | SW-ORG-AS - Baylor Health Care System | 2K | — | 8 |
| AS22462US | NOLA-BROADBAND-INC - NOLA BROADBAND LLC | 2K | 4.1K | 3 |
| AS11523US | AS-HLEEM - H. Lee Moffitt Cancer Center & Research Institute, Inc. | 2K | — | 5 |
| AS53872US | ASNTWO-AND-ASNTHREE - Telinta, Inc. | 2K | 4.1K | 3 |
| AS53283US | LITWARE - Litware LLC | 2K | 65.5K | 10 |
| AS2621US | DNIC-AS-02621 - United States Department of Defense (DoD) | 2K | — | 2 |
| AS395102US | YRMC-ASN - Yuma Regional Medical Center | 2K | — | 4 |
| AS64224US | ATINET - ATI Solutions | 2K | 5.1K | 11 |
| AS27240US | NETAS-STL - Netelligent Corporation | 2K | — | 8 |
| AS13518US | GONETSPEED-WV - GoNetSpeed | 2K | — | 2 |
| AS36294US | WINFIELD-WIRELESS - Clark County Computer Connections | 2K | — | 2 |
| AS22441US | WHITWORTH-NET - Whitworth University | 2K | — | 5 |
| AS14959US | MODISPRO - Adecco USA Inc | 2K | — | 3 |
| AS30006US | TOP-BUSINESS-INC - TOP BUSINESS INC | 2K | 1 | 6 |
| AS32755US | SRHS-205 - Spartanburg Regional Health Services District, Inc. | 2K | — | 3 |
| AS18973US | TAG-ONLINE - TAG Online Inc. | 2K | 73.7K | 7 |
| AS397952US | NEXSTREAM - Nexstream | 2K | — | 4 |
| AS396207US | STSS-BEDMINSTER-ASN - Mallinckrodt Enterprises LLC | 2K | — | 8 |
| AS54778US | BWAYTECH - Broadway Technology LLC | 2K | — | 8 |
| AS40633US | LAIX - LOS ANGELES INTERNET EXCHANGE | 2K | — | 2 |
| AS393665US | BAKERS - Baker College | 2K | — | 1 |
| AS11777US | NCAOC - North Carolina Adminstrative Office of the Courts | 2K | — | 4 |
| AS28852US | AERIS-AS Aeris Communications, INC. | 2K | 8.2K | 13 |
| AS400137US | COZYCLOUD - CozyCloud IT | 2K | — | 4 |
| AS25851US | ALTIUS-FL-AS - ALTIUS Broadband, LLC | 2K | — | 2 |
| AS64204US | TTEK-12 - TETRA TECH, INC. | 2K | — | 8 |
| AS395490US | LAKECOUNTYILLINOISGOVERNMENT - County of Lake | 2K | — | 3 |
| AS27500US | ICANN-MEETINGS - ICANN | 2K | 1 | 2 |
| AS19890US | LONE-PINE-OLANCHA - LONE PINE Communications | 2K | — | 2 |
| AS53289US | DATAMOCO - Data Moving Company | 2K | — | 8 |
| AS17059US | MTNBEAM-001 - Almendras Communications LLC | 2K | — | 5 |
| AS401224US | T1NETWORK - T1 Network LLC | 2K | — | 8 |
| AS11753US | ELEVATED1 - Elevated MSP, LLC | 2K | — | 8 |
| AS20253US | QWILTED-PROD-01 - Qwilt Inc. | 2K | — | 8 |
| AS136915US | OR-AS-AP - Outer Rim Entertainment | 2K | 65.5K | 3 |
| AS402257US | HUBSFERA - Hubsfera LLC | 2K | — | 8 |
| AS400727US | CVEC-ISP - Concho Valley Electric Cooperative, Inc. | 2K | 65.5K | 3 |
| AS18848US | ALTEC-IND-DOM - Altec Industries, Inc. | 2K | — | 6 |
| AS55216US | CARVERLINK - CarverLink | 2K | — | 1 |