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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,632 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,210 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 256 |
| 1 |
| 2 |
| AS394888US | WOW-LOGISTICS-A - WOW Logistics Company | 256 | — | 1 |
| AS16398US | SMC-GP - Supermicro Computer | 256 | — | 1 |
| AS36194US | ONSITE-AS - On Site | 256 | — | 1 |
| AS394894US | ANOKA-HENNEPIN-SCHOOLS - ANOKA-HENNEPIN PUBLIC SCHOOL DISTRICT | 256 | — | 1 |
| AS203023US | KNL-23-203023 - Kawaii Networks LLC | 256 | 65.5K | 2 |
| AS394355US | MGRM - MGRM Pinnacle, Inc. | 256 | — | 1 |
| AS40234US | RAPIDPARTS - Rapidparts, Inc. | 256 | — | 1 |
| AS16764US | THE-RAINE-GROUP-LLC - The Raine Group LLC | 256 | — | 1 |
| AS399432US | AS-MS-78058 - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | 256 | — | 1 |
| AS402918US | SUPERSEND - SuperSend | 256 | — | 1 |
| AS32383US | ROME-NET - ROME Sverdrup | 256 | — | 1 |
| AS19158US | ZAYOB-19158 - Zayo Bandwidth | 256 | 1 | 2 |
| AS398312US | GRANDVIEW-HEIGHTS-AS - Grandview Heights Schools | 256 | — | 1 |
| AS210097US | eXact-Digital-LLC EXACT DIGITAL LLC | 256 | 1 | 2 |
| AS394254US | BLUESOFTWARE - BLUE SOFTWARE, LLC | 256 | — | 1 |
| AS401703US | ORDINAL-ADV-01 - Ordinal Advisors LLC | 256 | 16 | 2 |
| AS399292US | UAMTCORP-01 - UAM Technologies Corp | 256 | — | 1 |
| AS394004US | HURLEY-MEDICAL-ASN - Hurley Medical Center | 256 | — | 1 |
| AS393373US | MORANTELECOLLC - MoranTeleco LLC | 256 | 256 | 2 |
| AS26336US | TFHD-INTERNET1 - Tahoe Forest Hospital District | 256 | — | 1 |
| AS396127US | SUCCESS-ACADEMIES - Success Academy Charter Schools Inc. | 256 | — | 1 |
| AS394525US | DF-INTERNET-TX - Dean Foods Company | 256 | — | 1 |
| AS17053US | ACCEL-COMM - Accel Communications LLC | 256 | 4.1K | 2 |
| AS62876US | 8X8-AS-CORP - 8x8, Inc. | 256 | — | 1 |
| AS55210US | SAMC-HCHA - Southeast Alabama Medical Center | 256 | — | 1 |
| AS394668US | STMARYSMEDICALCENTER-2900 - St. Mary's Medical Center, Inc. | 256 | — | 1 |
| AS400179US | PDQCOM - PDQ.com Corporation | 256 | 2 | 3 |
| AS400974US | HMG-MA-01 - Kia America, Inc. | 256 | — | 1 |
| AS21697US | AS21697 - AMES CONSTRUCTION INC. | 256 | — | 1 |
| AS54248US | GCPSNET - School Board of Gadsden County | 256 | — | 1 |
| AS16389US | ST-INTERNET-AS - Shurtape Technologies, LLC | 256 | — | 1 |
| AS46921US | SMITHGROUP-ASN - SMITHGROUP Companies, Inc. | 256 | — | 1 |
| AS396261US | UNIVERSITY-OF-KENTUCKY-RESEARCH-COMPUTING - University of Kentucky Research Computing | 256 | — | 1 |
| AS401766US | THE-LOT - Studio Lending Group, LLC | 256 | — | 1 |
| AS402921US | DWS-INDIA - Disney | 256 | — | 1 |
| AS54269US | PROVIDENTCU - Provident Credit Union | 256 | — | 1 |
| AS3134US | USAID-ASN - U.S. Agency for International Development | 256 | — | 1 |
| AS398771US | FLASHTALKING - Flashtalking, Inc. | 256 | — | 1 |
| AS393876US | AS-PMGAA - Phoenix-Mesa Gateway Airport Authority | 256 | — | 1 |
| AS54912US | BAYAL-IP1 - Bay Alarm Company | 256 | — | 1 |
| AS5117US | INETNETWORK - iNet Communications, LLC | 256 | — | 1 |
| AS47070US | VINEYARDCOLUMBUS - Vineyard Columbus | 256 | — | 1 |
| AS399476US | BETHESDA - Bethesda Wireless and Fiber | 256 | — | 1 |
| AS53816US | BRENTWOODACADEMY-TN - Brentwood Academy | 256 | — | 1 |
| AS46391US | AS46391 - Bassett Medical Center | 256 | — | 1 |
| AS401004US | DAB-OH-01 - Dabble Ventures | 256 | — | 1 |