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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS54988US | CMAS1 - cloudmain.com | — | — | 0 |
| AS62719US | AS-PCNET-ORL - Corserva, Inc. | — | — | 0 |
| AS54157US | NY-OCG - Orange County Government | — | — | 0 |
| AS54144US | EI-SERVICES - Shawn Kleinart Consulting | — | — | 0 |
| AS54908US | DEVONCORP2 - Devon Energy Corporation | — | — | 0 |
| AS54000US | ARC-INTERNET - Augusta Georgia | — | — | 0 |
| AS397175US | ITDATA-01 - ITDATA GURU | — | — | 0 |
| AS397101US | KOERBER-PHARMA-US - Korber Pharma, Inc. | — | — | 0 |
| AS396778US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS54409US | BDO USA LLP - BDO USA | — | — | 0 |
| AS46968US | SOUTHERNSEMINARY - Southern Baptist Theological Seminary | — | — | 0 |
| AS396784US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS398851US | AMEX-TRAN-ASH - American Express Company | — | — | 0 |
| AS398869US | ALLIANCE COMMUNICATIONS - Alliance Communications | — | — | 0 |
| AS398511US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS397551US | USFHP-PACMED - PACMED CLINICS | — | — | 0 |
| AS397902US | CIEN-ASN-01 - Ciena Corporation | — | — | 0 |
| AS398620US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS394943US | MAXWELL-TECHNOLOGIES - Tesla Motors, Inc. | — | — | 0 |
| AS394929US | NAES-ASN - NAES Corp | — | — | 0 |
| AS394639US | GOOGLE - Google LLC | — | — | 0 |
| AS394716US | HEBISD - HEBISD | — | — | 0 |
| AS63323US | CAPTIONCALL - CaptionCall | — | — | 0 |
| AS3940US | NTTA-3936 - NTT America, Inc. | — | — | 0 |
| AS3906US | ADS-1-AS - Advanced Data Systems | — | — | 0 |
| AS4070US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4292US | CENTURYLINK-QC-MOE-ROCHESTER - CenturyLink Communications, LLC | — | — | 0 |
| AS135306US | CHPL-US-AP - Computer Helper Pty. Ltd. | — | — | 0 |
| AS135271US | GLOBTELGROUP-AS-AP - Global Telecom Group LLC | — | — | 0 |
| AS63471US | HIDGLOBAL-AS - HID Global Corporation | — | — | 0 |
| AS19433US | MISO-AS - Midcontinent Independent System Operator, Inc. | — | — | 0 |
| AS63188US | ICOGUNNISON - Visionary Communications LLC | — | — | 0 |
| AS63158US | LAHARPE - La Harpe Communications INC. | — | — | 0 |
| AS393672US | NTHRIVE-ASN03 - Finthrive, Inc. | — | — | 0 |
| AS31954US | CARDINALHEALTH-AS03 - Cardinal Health, Inc. | — | — | 0 |
| AS207873US | LOOKINGCENTER HOSTING GALLERY LLC | — | — | 0 |
| AS215327US | Altare Altare AI LLC | — | — | 0 |
| AS212789US | BullCloud-Network-Technology BullCloud Network Technology Ltd | — | — | 0 |
| AS214220US | BETAWHALE betawhale, Inc | — | — | 0 |
| AS218159US | PROTIUM-NETWORK Protium Network LLC | — | — | 0 |
| AS53921US | TTCLA - The Telephone Connection of Los Angeles, Inc. | — | — | 0 |
| AS53378US | MINDBODYONLINE - MindBody, Inc. | — | — | 0 |
| AS199465US | feiya FeiYa Network LTD. | — | — | 0 |
| AS47080US | SINGLEHOP-LLC-2 - Internap Holding LLC | — | — | 0 |
| AS47033US | CANTON-DC - MTD Products, Inc | — | — | 0 |
| AS46847US | NEXVORTEX - nexVortex | — | — | 0 |