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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 | 21,110 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,246 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,708 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,954 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,419 |
| — |
| — |
| 0 |
| AS397539US | LOOPCAP-01 - Loop Capital LLC | — | — | 0 |
| AS397551US | USFHP-PACMED - PACMED CLINICS | — | — | 0 |
| AS397576US | MGS-EXIT-HUB - MIC GLOBAL SERVICES, LLC | — | — | 0 |
| AS397591US | VTX-VOD-US - Vertex Inc. | — | — | 0 |
| AS397629US | CLOUD-9-SOLUTIONS - Cloud 9 Solutions | — | — | 0 |
| AS397653US | CITYCR - City of Cedar Rapids | — | — | 0 |
| AS397673US | AHELIOTECH - AHELIOTECH | — | — | 0 |
| AS397869US | ADSUPPLY - AdSupply, Inc. | — | — | 0 |
| AS397902US | CIEN-ASN-01 - Ciena Corporation | — | — | 0 |
| AS398133US | DMEA - DMEA | — | — | 0 |
| AS398209US | REAL-GREEN-SYSTEMS - REAL GREEN HOLDINGS, LLC | — | — | 0 |
| AS398278US | ITI-FW-DC - ITI | — | — | 0 |
| AS398329US | AS-CHIL - CHI-NOG | — | — | 0 |
| AS398442US | WCD-AS-01 - Wisconsin Center District | — | — | 0 |
| AS398506US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398511US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398525US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398575US | MICROSOFT-AZURE-ORBITAL - Microsoft Corporation | — | — | 0 |
| AS398620US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398672US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398689US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398708US | OFFICERING - OFFICERING LLC | — | — | 0 |
| AS398851US | AMEX-TRAN-ASH - American Express Company | — | — | 0 |
| AS398859US | KIWI-IPTV - KIWISAT | — | — | 0 |
| AS398869US | ALLIANCE COMMUNICATIONS - Alliance Communications | — | — | 0 |
| AS398877US | RCO-ARIN-01 - REAL CLOUD ONE LLC | — | — | 0 |
| AS398935US | AS-NEWVM-1 - NewVM Internet Services LLC | — | — | 0 |
| AS398975US | EQUINIX-CX-PH - Equinix, Inc. | — | — | 0 |
| AS399015US | COR-FO - City of Rowlett | — | — | 0 |
| AS399047US | GIGAPOINTE - L.I. Combs Management Corp. | — | — | 0 |
| AS399072US | AL-PROD-03 - AppLovin Corporation | — | — | 0 |
| AS399162US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS399202US | VIPER-ASN01 - Vasuki Systems Inc | — | — | 0 |
| AS399258US | ABRIGO-ASN - Abrigo, Inc. | — | — | 0 |
| AS399396US | NY-MASSIVEGRID-1-MNT - MASSIVEGRID, INC | — | — | 0 |
| AS399431US | AMCN-CORP-AS-BTHPNY - Rainbow Media Holdings LLC | — | — | 0 |
| AS399446US | THEWORLDIX-ASN-1 - TheWorldIX | — | — | 0 |
| AS399466US | CITIZENSSUPPORT - Citizen Support LLC | — | — | 0 |
| AS399467US | SUMOFIBER-STGEORGE - Sumofiber | — | — | 0 |
| AS399515US | PEERTAG-INFRA-CORE - PeerTag LLC | — | — | 0 |
| AS399532US | ULAYER-AS - Universal Layer LLC | — | — | 0 |
| AS399573US | FLOSPORTS-BGP - Flosports, Inc. | — | — | 0 |
| AS399677US | TSYS-EQUINIX-LD8 - Global Payments Inc. | — | — | 0 |
| AS399994US | PBX-LASVEGAS - PBXIO LLC | — | — | 0 |
| AS400054US | AMS-NYC-LR4 - HEWLETT PACKARD ENTERPRISE COMPANY | — | — | 0 |
| AS400055US | AVI-DNS-SAAS - Avago Technologies U.S. Inc. | — | — | 0 |