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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 |
| AS63073US | UT-MAIN - The University of Tampa | 256 | — | 1 |
| AS58202US | NoPKT NoPKT LLC | 256 | 4 | 5 |
| AS400652US | KRV-GSH-01 - Keystone RV Company | 256 | — | 1 |
| AS511US | PRISMA HEALTH - Prisma Health | 256 | — | 1 |
| AS397190US | WSP-DIGITAL - WSP | 256 | 1 | 2 |
| AS32395US | LNFCU-01 - L & N Federal Credit Union | 256 | — | 1 |
| AS30611US | COMPASS-ROSE-LLC - Compass Rose Asset Management, LP | 256 | — | 1 |
| AS394183US | TRUSTMARK-BANK - Trustmark Bank | 256 | — | 1 |
| AS394442US | PCBF-NYC1 - Pearl Capital Business Funding LLC | 256 | — | 1 |
| AS11208US | HCPL-AS - HALL CAPITAL PARTNERS, LLC | 256 | — | 1 |
| AS55266US | FRMC01 - Firelands Regional Medical Center | 256 | — | 1 |
| AS395999US | KIM-199-120-191-0 - Kimball International, Inc. | 256 | — | 1 |
| AS396907US | XANTERRA - XANTERRA Inc. | 256 | — | 1 |
| AS40657US | OANDA-1 - OANDA Corporation | 256 | — | 1 |
| AS400649US | APOG-UTD - Apogee Telecom Inc. | 256 | — | 1 |
| AS394052US | TUSCANO-NET - W.N. Tuscano Agency | 256 | — | 1 |
| AS53438US | VB-ASN-01 - Vantage Bank | 256 | — | 1 |
| AS32532US | KMC-37-ASN - Kuakini Medical Center | 256 | — | 1 |
| AS40118US | THIRD-POINT-LLC - Third Point LLC | 256 | — | 1 |
| AS53888US | RPA-ASN - RUBIN POSTAER AND ASSOCIATES | 256 | — | 1 |
| AS6936US | BOOTSTATE - Boot State Technologies LLC | 256 | 73.7K | 4 |
| AS400950US | NULLEDLLC - nulled LLC | 256 | 1 | 2 |
| AS20131US | MCFARLANDCLINIC - McFarland Clinic PC | 256 | — | 1 |
| AS399810US | LAER-AS-AMS1 - UnitedLayer, LLC | 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 |