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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. | 211.1M | 21,138 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,674 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,417 |
| 256 |
| — |
| 1 |
| AS16428US | SFS-AS1 - Store Financial Services, LLC | 256 | — | 1 |
| AS402353US | TC-MX-C - TransCanada | 256 | — | 1 |
| AS395553US | CCI - Crain Communications Inc. | 256 | — | 1 |
| AS402535US | MOORGADE - Moorgade | 256 | — | 1 |
| AS402472US | POPCORN - Popcorn | 256 | — | 1 |
| AS25944US | OCP-AS-01 - Society of Young Enterprise Engineers Ltd. | 256 | 16 | 2 |
| AS26780US | KMOB - Knobbe, Martens, Olson & Bear, LLP. | 256 | — | 1 |
| AS400153US | ASL-691 - Absolute Technologies LLC | 256 | — | 1 |
| AS395836US | ALL-STATES-AG-PARTS - All States Ag Parts, Inc | 256 | — | 1 |
| AS396288US | COMPUNETINC - Compunet, Inc. | 256 | 1 | 2 |
| AS396500US | MINAKILABS-AS01 - MinakiLabs | 256 | — | 1 |
| AS399846US | GOOCHLAND-COUNTY - County of Goochland | 256 | — | 1 |
| AS54436US | HSD-WA-401 - Highline School District | 256 | — | 1 |
| AS32500US | VESTA - Airbus DS Communications Inc | 256 | — | 1 |
| AS397491US | AS-WF-01 - Wichita Falls ISD | 256 | — | 1 |
| AS26319US | CHFCU - CoastHills Federal Credit Union | 256 | — | 1 |
| AS394157US | RFPCO - Roseburg | 256 | — | 1 |
| AS36266US | SPL-ASN - Stonepeak Partners LP | 256 | — | 1 |
| AS33607US | WSC-PHILADELPHIA-PA - Weidenhammer | 256 | — | 1 |
| AS398072US | REGION7-ESC-DMAC - Region VII Education Service Center | 256 | — | 1 |
| AS398724US | AMAW - AMAWATERWAYS, LLC | 256 | — | 1 |
| AS62999US | FZSDARIN - Fort Zumwalt School District | 256 | — | 1 |
| AS461US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 256 | — | 1 |
| AS16419US | COF-EQX-CHI-PP - Capital One Financial Corporation | 256 | — | 1 |
| AS62636US | ISD273-1 - Edina Public Schools | 256 | — | 1 |
| AS32056US | SHAMROCKFOODS-INTERNET-01 - SHAMROCK FOODS COMPANY | 256 | — | 1 |
| AS33393US | MMMI - Michigan Millers Mutual Insurance Company | 256 | — | 1 |
| AS899US | INTRTEL - Intrepid Telecom, Inc. | 256 | 256 | 2 |
| AS10545US | LCOL - University of Lynchburg | 256 | — | 1 |
| AS39952US | SPECTRA-AS - Spectra Logic Corporation | 256 | 1 | 2 |
| AS14246US | THALESCOMMINC-AS - Thales Communications Inc. | 256 | — | 1 |
| AS139706US | TNSI-AS-AP - Transaction Network Services | 256 | — | 1 |
| AS394145US | SCEFCU - SCE Federal Credit Union | 256 | — | 1 |
| AS396494US | AS-CITY-OF-ROCKVILLE-MARYLAND - Mayor and Council of Rockville | 256 | — | 1 |
| AS397488US | NEW-ALBANY-PLAIN-LOCAL-SCHOOLS-AS - New Albany-Plain Local School District | 256 | 4.6K | 4 |
| AS400772US | CWCU-AS - Commonwealth Credit Union | 256 | — | 1 |
| AS36537US | BRMIC-MURRAY-01 - Bear River Mutual Insurance Company | 256 | — | 1 |
| AS393463US | GAF-TOTOWA-65-223-143-0 - GAF | 256 | — | 1 |
| AS18944US | HEAP - AS18944 LLC | 256 | 1 | 2 |
| AS1021US | CVTECH1 - CV Tech | 256 | — | 1 |
| AS19983US | GTPL-AS-01 - Global Technology Partners LLC | 256 | — | 1 |
| AS393549US | WALSHGROUP - The Walsh Group | 256 | — | 1 |
| AS211223US | WebSeed WebSeed Inc. | 256 | — | 1 |
| AS397878US | DDI-HQ-ASN - DEVELOPMENT DIMENSIONS INTERNATIONAL INC | 256 | — | 1 |
| AS19474US | ORGANIC-VALLEY - Organic Valley | 256 | — | 1 |
| AS3635US | BEA - U.S. Department of Commerce, Bureau of Economic Analysis | 256 | 16 | 2 |