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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 | 21,109 |
| 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 | 4,430 |
| 256 |
| — |
| 1 |
| AS395144US | INDY-ASN-01 - Independent Connections LLC | 256 | — | 1 |
| AS401751US | FMH-NET - Farmers Mutual Hail Insurance Company of Iowa | 256 | — | 1 |
| AS32627US | BIDS-TRADING - BIDS Trading L.P. | 256 | — | 1 |
| AS397949US | REG-US-ASN-01 - Chevron Corporation | 256 | — | 1 |
| AS400474US | GHOSTFIBER - GhostFiber | 256 | 4.1K | 2 |
| AS401471US | TICKETNETWORK-DC-01 - TicketNetwork Inc. | 256 | — | 1 |
| AS14906US | MAXIM-7227 - Maxim Healthcare Services, Inc. | 256 | — | 1 |
| AS54114US | NJ - 1010Data, Inc. | 256 | — | 1 |
| AS30102US | BALDWIN - Baldwin County Commission | 256 | — | 1 |
| AS18559US | CANIK - CANIK USA, LLC | 256 | 256 | 2 |
| AS934US | BSTI - Big Sky Tech & Internet, Inc. | 256 | — | 1 |
| AS395820US | ISG-SECURITY - Integrated Security Group | 256 | — | 1 |
| AS33115US | RU-NET - Rulogic Inc. | 256 | — | 1 |
| AS401340US | HCIFIRSTASNAME - Hussey Communications Inc | 256 | — | 1 |
| AS15019US | ZAPPOS - Zappos.com, Inc. | 256 | — | 1 |
| AS393352US | CITY-OF-LAREDO - CITY OF LAREDO | 256 | — | 1 |
| AS394183US | TRUSTMARK-BANK - Trustmark Bank | 256 | — | 1 |
| AS46677US | CAROLINA-AIRLINK - Carolina Airlink | 256 | 256 | 2 |
| AS53432US | OHRH - Owensboro Health, Inc. | 256 | — | 1 |
| AS11009US | CARLOWUNIV - Carlow University | 256 | — | 1 |
| AS15281US | NGCPUB - National Gypsum Company | 256 | — | 1 |
| AS398336US | MODERN-WOODMEN-OF-AMERICA - Modern Woodmen of America | 256 | — | 1 |
| AS21626US | CLEARSKYNETWORK - clearskynetwork | 256 | — | 1 |
| AS1029US | BLACK-MESA-LMN - Black Mesa Corporation | 256 | 2 | 3 |
| AS40868US | FCEC-ASN - Fannin County Electric Cooperative, Inc. | 256 | — | 1 |
| AS19417US | CENTR-65-ASN - Centra-Larm Monitoring, Inc. | 256 | — | 1 |
| AS17333US | COLLEGE-OF-SAINT-MARY - College of Saint Mary | 256 | — | 1 |
| AS22358US | VERDUGO-FIRE-COMM-CENTER-1 - Verdugo Fire Communications Center | 256 | — | 1 |
| AS11208US | HCPL-AS - HALL CAPITAL PARTNERS, LLC | 256 | — | 1 |
| AS395463US | MURFDATA1 - Murfreesboro Data, LLC | 256 | — | 1 |
| AS4578US | NETCENTER - Network Center Inc. | 256 | — | 1 |
| AS395859US | INTERNETCONNECT - Internet Connect, LLC. | 256 | — | 1 |
| AS46367US | URSAS - UTAH RETIREMENT SYSTEMS | 256 | — | 1 |
| AS393522US | AS-METROLIST-SAC - MetroList Services, Inc. | 256 | — | 1 |
| AS54692US | GS-ASN-01 - GuideStone Financial Resources of the Southern Baptist Convention | 256 | — | 1 |
| AS398958US | MORGAN-ASN-EV-2 - Morgan Stanley | 256 | — | 1 |
| AS46885US | CIML-6-US - Carlyle Investment Management L.L.C. | 256 | — | 1 |
| AS402385US | SPICER-NETWORKS - Spicer | 256 | 256 | 2 |
| AS63070US | UOVO-ART - Uovo Art LLC | 256 | — | 1 |
| AS6260US | SIX2SIXO-NETWORKS - MOD Mission Critical, LLC | 256 | — | 1 |
| AS22564US | TRABON-SOLUTIONS - Trabon Solutions | 256 | — | 1 |
| AS399530US | CIR-DC-02 - Cambridge Investment Research, Inc. | 256 | — | 1 |
| AS20274US | FVCC-AS - Flathead Valley Community College | 256 | — | 1 |
| AS401575US | JPPS-01 - Jeff Parrish, Sole Proprietorship | 256 | 256 | 2 |
| AS26765US | REDUNDANT-INTERNET - Bountiful City | 256 | — | 1 |
| AS19944US | GRANITEIX-SERVICES - GraniteIX LLC | 256 | 256 | 2 |