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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,247 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,189 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,901 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,010 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,222 |
| 3.6K |
| — |
| 9 |
| AS32824US | WWT-ASN1 - WORLD WIDE TECHNOLOGY HOLDING CO., LLC. | 3.6K | — | 8 |
| AS394541US | PVN-STW - Professional Value Internet Services, Inc. | 3.6K | — | 8 |
| AS63219US | GOVNET-SERVICES - GovNET | 3.6K | — | 5 |
| AS7809US | SYNOPSYS - Synopsys Inc. | 3.6K | — | 10 |
| AS19031US | WESCO - CU*Answers, Inc. | 3.6K | — | 11 |
| AS35874US | KRESA-ASN - Kalamazoo RESA | 3.8K | — | 15 |
| AS399768US | VER-CT-ASN-01 - Verition Group LLC | 3.8K | — | 10 |
| AS7030US | EXWIRE - Exwire, Inc. | 3.8K | 65.5K | 16 |
| AS46318US | TECHOPS-ASN-4 - Live Nation Entertainment, Inc. | 3.8K | — | 15 |
| AS396998US | PATH-NETWORK - Path Network, Inc. | 3.8K | 82.9K | 42 |
| AS36234US | COREDIAL-228 - CoreDial, LLC | 3.8K | — | 10 |
| AS26123US | ITU-NET-1 - Independence Telecommunications Utility | 3.8K | 65.5K | 5 |
| AS19624US | SERVERROOM - Data Room, Inc | 3.8K | 16.4K | 21 |
| AS33307US | HOSPITALITY-WIRELESS - Hospitality Integrated Services Inc | 3.8K | 65.5K | 12 |
| AS19076US | WELDCOUNTYGOVERNMENT-ASN - Weld County Government | 3.8K | — | 15 |
| AS26650US | ALPHA-TECHNOLOGIES - Alpha Technologies Inc | 3.8K | — | 4 |
| AS14089US | CANNET - CanNet Internet Services, Inc. | 3.8K | — | 15 |
| AS16599US | BENTLEY-SYSTEMS - Bentley Systems | 3.8K | — | 7 |
| AS46601US | AS46601 - CCI Communications LLC | 3.8K | — | 12 |
| AS7021US | VRIS-7021 - Verizon Business | 3.8K | — | 4 |
| AS54702US | QUICKMEG - QuickMeg Inc | 3.8K | — | 9 |
| AS32045US | AS-DYNASCALE-LAS - 1U Web, INC. | 3.8K | 8.2K | 16 |
| AS19079US | LOCL-NET - Locl-Net Inc | 3.8K | — | 15 |
| AS26891US | NEWCLOUD - Otava, LLC | 3.8K | 1 | 16 |
| AS10882US | CLARITYCONNECT - Clarity Connect Inc | 3.8K | — | 15 |
| AS18692US | NEUBERGER - Neuberger Berman | 3.8K | — | 13 |
| AS6086US | INFOMAGIC - MagicNET, Inc | 3.8K | 1 | 11 |
| AS23280US | VENN - Venn Technology Corp | 3.8K | — | 15 |
| AS400011US | VOXTELESYS-LLC - Voxtelesys LLC | 3.8K | 65.5K | 13 |
| AS3719US | CT-JIS - State of Connecticut Judicial Branch | 3.8K | 1 | 16 |
| AS25885US | FORTINET - OPAQ Networks, Inc. | 3.8K | 1 | 6 |
| AS3555US | ATS-NET - AT&T Technical Services Company, Inc. | 3.8K | — | 12 |
| AS398037US | NVIDIA-NGC-NSV - NVIDIA Corporation | 3.8K | 1 | 15 |
| AS14586US | NUCLEARFALLOUT-CHI - Nuclearfallout Enterprises, Inc. | 3.8K | 4.1K | 16 |
| AS349US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 3.8K | 256 | 16 |
| AS16733US | SYMANTEC-CORPORATION - Gen Digital Inc. | 3.8K | — | 12 |
| AS46435US | IRON - IRON | 3.8K | 65.5K | 16 |
| AS394194US | MCOGP - Gaylord Palms Resort & Convention Center | 3.8K | — | 7 |
| AS54825US | PACKET - Packet Host, Inc. | 3.8K | 4.2K | 23 |
| AS399976US | NOVANETWORKS - Nova Networks | 3.8K | 4.2K | 45 |
| AS394399US | LACA-ASN - Licking Area Computer Association | 3.8K | — | 8 |
| AS26008US | AKAMAI-NOMINUM-ASN - Akamai Technologies, Inc. | 3.8K | 23 | 17 |
| AS46131US | THEIPGUYS-AS - TheIPGuys.Net, LLC | 3.8K | — | 5 |
| AS22974US | CHARTER-22974-MICHIGAN-DETROIT-C3 - Charter Communications LLC | 3.8K | 288 | 9 |
| AS23489US | MARINK12 - Marin County Office of Education | 3.8K | — | 15 |
| AS23197US | GENESYS-SAAS - Genesys Laboratories Canada, Inc. | 3.8K | — | 5 |