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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| — |
| — |
| 0 |
| AS397175US | ITDATA-01 - ITDATA GURU | — | — | 0 |
| AS394837US | RIZZ-FIBER - Rizz Fiber | — | — | 0 |
| AS396624US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS394224US | PROGRESSIVEHEALTHSYSTEMS - Progressive Health Systems | — | — | 0 |
| AS394223US | BUFFALOCONNECT - M&T BANK CORPORATION | — | — | 0 |
| AS40116US | AS-NYSDI - New York State Department of Financial Services | — | — | 0 |
| AS46795US | AG-PARTNERS-LLC - AG PARTNERS LLC | — | — | 0 |
| AS47103US | ZNL-15-47103 - GIGAPATH LLC | — | — | 0 |
| AS36611US | VISTANETINC - VISTANET INC. | — | — | 0 |
| AS398958US | MORGAN-ASN-EV-2 - Morgan Stanley | — | — | 0 |
| AS394536US | CLOUDFLARENET-SFO - Cloudflare, Inc. | — | 1 | 1 |
| AS35933US | NELSON-HQ-AS - Nelson & Associates | — | — | 0 |
| AS40789US | TCLOUD - TCLOUD NETWORK, INC | — | — | 0 |
| AS35870US | NAMETAG - Nametag | — | — | 0 |
| AS40290US | COMTECHNOLOGIES - Communications Technologies, Inc. | — | — | 0 |
| AS40161US | ATL-HOSTED - Noble Systems Corporation | — | — | 0 |
| AS47080US | SINGLEHOP-LLC-2 - Internap Holding LLC | — | — | 0 |
| AS40406US | ACXIOM-LR - Acxiom LLC | — | — | 0 |
| AS40136US | BMCM-ASN - Assured Guaranty Corp | — | — | 0 |
| AS212149US | Hammynet Hammy Web Services LLC | — | — | 0 |
| AS207873US | LOOKINGCENTER HOSTING GALLERY LLC | — | — | 0 |
| AS210883US | AQUASYS Aquasys, LLC | — | — | 0 |
| AS135306US | CHPL-US-AP - Computer Helper Pty. Ltd. | — | — | 0 |
| AS135271US | GLOBTELGROUP-AS-AP - Global Telecom Group LLC | — | — | 0 |
| AS146951US | ISC-AS-AP - ISC F-Root Kolkata | — | — | 0 |
| AS39973US | INTERNATIONAL-FLAVORS-AND-FRAGRANCES - International Flavors & Fragrances, Inc. | — | — | 0 |
| AS46608US | RENAISSANCE-INVESTMENT-MANAGEMENT - Renaissance Investment Management, Inc. | — | — | 0 |
| AS398689US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398672US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398506US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398525US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS400244US | WS-01 - WORLD SINGLES, LLC | — | — | 0 |
| AS400103US | DYNE-BGP-01 - Dyne Therapeutics, Inc. | — | — | 0 |
| AS399677US | TSYS-EQUINIX-LD8 - Global Payments Inc. | — | — | 0 |
| AS398869US | ALLIANCE COMMUNICATIONS - Alliance Communications | — | — | 0 |
| AS400054US | AMS-NYC-LR4 - HEWLETT PACKARD ENTERPRISE COMPANY | — | — | 0 |
| AS4115US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS46507US | DELL-KACE-AS - Dell, Inc. | — | — | 0 |
| AS46538US | MANTARA - Mantara Inc. | — | — | 0 |
| AS46311US | HDNETLLC-ASN01 - AXStv - HDNet - HDNet Movies | — | — | 0 |
| AS46278US | USWIRED-CLOUD-HOSTING - USWired Incorporated | — | — | 0 |
| AS40927US | INVESCO-INDIA - Invesco Group Services, Inc. | — | — | 0 |
| AS46421US | AMGHMTC-DFW - Air Medical Group Holdings | — | — | 0 |
| AS50381US | UNICYCLE-AS Hostonce LLC | — | — | 0 |
| AS47892US | FTEN-EU-ASN FTEN LLC | — | — | 0 |
| AS46977US | VIRTUSTREAM-US - Dell, Inc. | — | — | 0 |