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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 |
| AS399255US | NORTHWEST-OHIO-BROADBAND-LLC - NORTHWEST OHIO BROADBAND, LLC | 256 | — | 1 |
| AS63078US | ADS-AS1 - A. Duda & Sons, Inc. | 256 | — | 1 |
| AS401747US | MOPS-ASN-1 - MODERNOPS | 256 | — | 1 |
| AS393783US | SEIBELS - Seibels Technology Solutions, Inc. | 256 | — | 1 |
| AS33278US | NSLC-ORG - National Student Clearinghouse | 256 | — | 1 |
| AS18996US | CITY-OF-BAYTOWN - City of Baytown | 256 | — | 1 |
| AS14691US | GLAA - Great Lakes Adventist Academy | 256 | 1 | 2 |
| AS936US | WEICH-ASN-01 - Weichert Co | 256 | — | 1 |
| AS395444US | MERIT-RICHMOND - Merit Medical Systems, Inc | 256 | — | 1 |
| AS33740US | TMGHEALTH-FTW - TMG Health, Inc | 256 | — | 1 |
| AS396236US | MIMOKC - MIMO 5G Internet | 256 | — | 1 |
| AS21643US | MWU-ASN - Midwestern University | 256 | — | 1 |
| AS203436US | ScaleBit ScaleBit Technologies, L.L.C. | 256 | — | 1 |
| AS18752US | HT-HB18752 - Uniti Fiber Holdings Inc. | 256 | — | 1 |
| AS21607US | LAZERWARE-INC - LAZERWARE INC | 256 | — | 1 |
| AS398752US | OUR-SUNDAY-VISITOR - Our Sunday Visitor | 256 | — | 1 |
| AS19669US | SCS - Steel City Signal | 256 | — | 1 |
| AS36038US | SISULINK - sisulink | 256 | — | 1 |
| AS394825US | AS-199-193-56-0 - Pioneer Technology | 256 | — | 1 |
| AS46643US | VIRGINIA-COLLEGE-SAVINGS-PLAN - Virginia College Savings Plan | 256 | — | 1 |
| AS400181US | SIGYN-SYSTEMS-0 - Sigyn Systems | 256 | 4.1K | 2 |
| AS393548US | ABRIA-AS-01 - AbriaCloud Technologies | 256 | — | 1 |
| AS19538US | LUXOR - Luxor | 256 | — | 1 |
| AS211585US | MAIYUN Maiyun Zhang | 256 | 21 | 7 |
| AS393426US | HALP - Harris Associates L.P. | 256 | — | 1 |
| AS54762US | ASHLANDUNIVERSITY - Ashland University | 256 | — | 1 |
| AS32492US | DANA - DANA INNOVATION | 256 | — | 1 |
| AS26913US | EDPRNA-ERNAL - EDP Renewables North America LLC | 256 | — | 1 |
| AS54390US | LAMBNET - XtcN | 256 | — | 1 |
| AS8132US | ENTEX - ENTEX Information Services | 256 | — | 1 |
| AS36199US | IILL-2-36199 - Cree Lighting a company of IDEAL INDUSTRIES, INC | 256 | — | 1 |
| AS33534US | OTICONUS-COM - OTICON, INC. | 256 | — | 1 |
| AS22789US | PUSHWOOSH - Pushwoosh | 256 | — | 1 |
| AS394664US | PECKHAM-INC - Peckham, Inc. | 256 | — | 1 |
| AS29947US | KIRKLAND-ELLIS-OC - Kirkland & Ellis LLP | 256 | — | 1 |
| AS397627US | CLOUDCONNECT - CloudConnect, LLC | 256 | — | 1 |
| AS10544US | NETGAIN-TECHNOLOGIES - NetGain Technologies, Inc. | 256 | — | 1 |
| AS11267US | PEIRCE-PHELPS - Peirce-Phelps, Inc. | 256 | — | 1 |
| AS54977US | MERITMEDICAL - Merit Medical Systems, Inc | 256 | — | 1 |
| AS32230US | PRESTIGEFINANCIAL1420 - Prestige Financial Services | 256 | — | 1 |
| AS55054US | IPMEETIP - IPv4 Superhub Limited | 256 | — | 1 |
| AS393816US | RMATV - Rocky Mountain ATV INC. | 256 | — | 1 |
| AS63307US | EARTHLINK-LIGHTOWER - Cooley Dickinson Hospital | 256 | — | 1 |
| AS398279US | KITCHELL-CORP - KITCHELL CORPORATION | 256 | — | 1 |
| AS402396US | CLOUDASYS - Cloudasys | 256 | — | 1 |
| AS396525US | GDF-IL01 - Grecian Delight Foods, Inc | 256 | — | 1 |