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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 | 23,999 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,154 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 231 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,882 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,990 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,318 |
| 4.1K |
| 4.1K |
| 5 |
| AS35906US | AS-TRAIANA - Traiana, Inc | 4.1K | — | 15 |
| AS33372US | SPARTAN-AS - Spartan Stores Inc. | 4.1K | — | 15 |
| AS7258US | CATALOG-AS7258 - Webhero, Inc. | 4.1K | — | 1 |
| AS22725US | HOME-COMMUNICATIONS-INC - Home Communications Inc | 4.1K | — | 4 |
| AS17003US | ZOETIS-INC - Zoetis Inc. | 4.1K | — | 6 |
| AS26661US | JCPS-ASN - Jeffco Public Schools | 4.1K | — | 3 |
| AS29948US | EMPIRICAL-NET - Empirical Networks, Ltd. | 4.1K | 4.1K | 2 |
| AS401975US | RAILS - Reaching Across Illinois Library System | 4.1K | — | 1 |
| AS393439US | ULTISAT-ASN - UltiSat Inc | 4.1K | — | 6 |
| AS19977US | MBRML-AS - Mayer Brown LLP | 4.1K | — | 10 |
| AS20031US | SDP-ASN - The School District of Pittsburgh | 4.1K | — | 1 |
| AS12022US | ONEMAIN-AS - OneMain Holdings, Inc | 4.1K | — | 8 |
| AS400224US | TARLETON - Tarleton State University | 4.1K | — | 1 |
| AS23029US | ESTREET - E Street | 4.1K | — | 9 |
| AS27254US | ATCJET-NET - ATC COMMUNICATIONS | 4.1K | — | 1 |
| AS46130US | POSITIVE-USA - The Positive Internet Company, Inc. | 4.1K | — | 1 |
| AS31827US | BNT-NETWORK-ACCESS - Biz Net Technologies | 4.1K | 65.5K | 2 |
| AS54457US | HCEC-HOUSTON-PRIMARY - Harris County Emergency Corps | 4.1K | — | 1 |
| AS27316US | EICCD - Eastern Iowa Community College District | 4.1K | — | 8 |
| AS27578US | AIRBRIDGE - AirBridge Broadband LLC | 4.1K | 65.5K | 5 |
| AS46318US | TECHOPS-ASN-4 - Live Nation Entertainment, Inc. | 3.8K | — | 15 |
| AS18692US | NEUBERGER - Neuberger Berman | 3.8K | — | 13 |
| AS26650US | ALPHA-TECHNOLOGIES - Alpha Technologies Inc | 3.8K | — | 4 |
| AS36234US | COREDIAL-228 - CoreDial, LLC | 3.8K | — | 10 |
| AS3719US | CT-JIS - State of Connecticut Judicial Branch | 3.8K | 1 | 16 |
| AS16733US | SYMANTEC-CORPORATION - Gen Digital Inc. | 3.8K | — | 12 |
| AS33307US | HOSPITALITY-WIRELESS - Hospitality Integrated Services Inc | 3.8K | 65.5K | 12 |
| AS398037US | NVIDIA-NGC-NSV - NVIDIA Corporation | 3.8K | 1 | 15 |
| AS19079US | LOCL-NET - Locl-Net Inc | 3.8K | — | 15 |
| AS14089US | CANNET - CanNet Internet Services, Inc. | 3.8K | — | 15 |
| AS6086US | INFOMAGIC - MagicNET, Inc | 3.8K | 1 | 11 |
| AS10882US | CLARITYCONNECT - Clarity Connect Inc | 3.8K | — | 15 |
| AS19076US | WELDCOUNTYGOVERNMENT-ASN - Weld County Government | 3.8K | — | 15 |
| AS396998US | PATH-NETWORK - Path Network, Inc. | 3.8K | 1.2M | 48 |
| AS32045US | AS-DYNASCALE-LAS - 1U Web, INC. | 3.8K | 8.2K | 16 |
| AS26891US | NEWCLOUD - Otava, LLC | 3.8K | 1 | 16 |
| AS46601US | AS46601 - CCI Communications LLC | 3.8K | — | 12 |
| AS349US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 3.8K | 256 | 16 |
| AS7030US | EXWIRE - Exwire, Inc. | 3.8K | 65.5K | 16 |
| AS54702US | QUICKMEG - QuickMeg Inc | 3.8K | — | 9 |
| AS3555US | ATS-NET - AT&T Technical Services Company, Inc. | 3.8K | — | 12 |
| AS11612US | READYTEL-NC - Ready Telecom, Inc. | 3.8K | — | 15 |
| AS55095US | AS-NFLXCORP - Netflix Inc | 3.8K | 101 | 41 |
| AS26123US | ITU-NET-1 - Independence Telecommunications Utility | 3.8K | — | 4 |
| AS16599US | BENTLEY-SYSTEMS - Bentley Systems | 3.8K | — | 7 |
| AS35874US | KRESA-ASN - Kalamazoo RESA | 3.8K | — | 15 |