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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 | 24,632 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,210 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| WT-ASN - Williams Trading LLC |
| 256 |
| — |
| 1 |
| AS393220US | ARIN-PFS-SJC - ARIN Operations | 256 | 1 | 2 |
| AS32355US | HBP-AS - Horsley Bridge Partners, LLC | 256 | — | 1 |
| AS5098US | OPUSONE-NETS - Opus One Winery, LLC | 256 | — | 1 |
| AS1829US | LANL-NV - Los Alamos National Laboratory | 256 | 1 | 2 |
| AS400431US | EK-COMPUTER-COLOCATION - E K Computer, Inc. | 256 | — | 1 |
| AS401521US | KSWOTV - Gray Media, Inc. | 256 | — | 1 |
| AS1052US | COEUR-D-ALENE-TRIBE - Coeur d' Alene Tribe | 256 | 65.5K | 2 |
| AS401408US | SALADCLOUD - Salad Technologies, Inc. | 256 | 256 | 2 |
| AS401232US | ETECHGS-INDIA - Etech Texas, LLC | 256 | — | 1 |
| AS63194US | CRASH - Crashlytics, Inc | 256 | — | 1 |
| AS63048US | CONFIRE - Confire JPA | 256 | — | 1 |
| AS30554US | LEVY-LFS-NET - Levy Restaurants | 256 | — | 1 |
| AS399118US | OPB-MACADAM-01 - Oregon Public Broadcasting | 256 | — | 1 |
| AS40233US | SLOM-INC - SLOMIN'S INC. | 256 | — | 1 |
| AS395745US | SQPT-OPS-LLC-AS - SquarePoint Ops LLC | 256 | — | 1 |
| AS396272US | HOUSTON-TEXANS - Houston Texans | 256 | — | 1 |
| AS62625US | JDBANK - JD Bank | 256 | — | 1 |
| AS33335US | HEAVISIDE-HOSTING-GROUP - Heaviside Hosting LLC | 256 | — | 1 |
| AS395319US | AS-RIVERBAYCORP - Riverbay Corporation | 256 | — | 1 |
| AS398931US | LS-ENTERPRISES - LS Enterprises | 256 | 1 | 2 |
| AS394438US | CITY-OF-PRINEVILLE - City of Prineville | 256 | — | 1 |
| AS398198US | MORAE-GLOBAL-CE - Morae Global | 256 | — | 1 |
| AS394602US | ILLINOISCOLLEGE - Illinois College | 256 | — | 1 |
| AS32507US | LYON-LR-01 - LYON COLLEGE | 256 | — | 1 |
| AS21610US | SAP-SE-YVR - SAP America Inc. | 256 | — | 1 |
| AS402045US | NOCKYRENTAL - NOCKYRENTAL LLC | 256 | — | 1 |
| AS399401US | LOUISIANA-INTERNET-TECHNOLOGY - LOUISIANA INTERNET TECHNOLOGY, LLC | 256 | — | 1 |
| AS393286US | CASCADEAS - Cascade Investment LLC | 256 | — | 1 |
| AS399148US | ZETALINK - Zetalink | 256 | — | 1 |
| AS37935US | KYNDRYLINC-AS-AP - Kyndryl INC | 256 | — | 1 |
| AS401548US | HCDL-OMAHA-DATA-CENTER - H5 Data Centers | 256 | 256 | 2 |
| AS395736US | CARY-STREET-PARTNERS-LLC - Cary Street Partners | 256 | — | 1 |
| AS4878US | NOKIA-TECH - Nokia Technologies | 256 | — | 1 |
| AS399514US | HORIZONBANK - Horizon Bank | 256 | — | 1 |
| AS395599US | ALDR2016 - Alder | 256 | — | 1 |
| AS10916US | FIRSTVOLUNTEER - First Volunteer Bank | 256 | — | 1 |
| AS402399US | IRON - IRONHOSTING | 256 | — | 1 |
| AS18993US | AFS147 - Area Financial Services Inc. | 256 | — | 1 |
| AS393557US | PCMC - Park City Municipal Corporation | 256 | — | 1 |
| AS394414US | AS394414 - E2W Solutions LLC | 256 | 32 | 3 |
| AS19779US | SGFD - St. George Fire Department | 256 | — | 1 |
| AS19044US | INNER - The Inner Net | 256 | — | 1 |
| AS21914US | RXO-CORPORATE-SOLUTIONS - RXO Corporate Solutions, LLC | 256 | — | 1 |
| AS64278US | UAPN - US Auto Parts Network, Inc. | 256 | — | 1 |
| AS20449US | AHS-RANDOLPHHEALTH - Randolph Health | 256 | — | 1 |
| AS16671US | COLOBLOX - Coloblox Data Centers Inc | 256 | — | 1 |