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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. | 211.3M | 21,277 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,722 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,955 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,298 |
| — |
| — |
| 0 |
| AS14577US | AS-TBWACDLA - TBWA Chiat Day | — | — | 0 |
| AS14644US | HPCITY-02 - City of High Point | — | — | 0 |
| AS14668US | COMCAST-TELECOMM-6 - Comcast Cable Communications, LLC | — | — | 0 |
| AS14752US | DAYBREAKVENTURE - Daybreak Venture L.L.C. | — | — | 0 |
| AS14783US | NUANCE-BURLINGTON - Microsoft Corporation | — | — | 0 |
| AS14788US | HAVAS-HEALTH-NYC - Havas Health, Inc. | — | — | 0 |
| AS14831US | CAMERON-COUNTY-TX - Cameron County | — | — | 0 |
| AS14833US | AS-SD-ACCURATE-PUB-WEB - ACCURATE BACKGROUND LLC | — | — | 0 |
| AS14855US | AOL-MTC1 - Yahoo Holdings Inc. | — | — | 0 |
| AS14961US | HYUNDAI-INFORMATION-SERVICE-NORTH-AMERICA - Kia America, Inc. | — | — | 0 |
| AS15010US | IT-DIMENSIONS - IT Dimensions, Inc. | — | — | 0 |
| AS15098US | CAMBE-13 - Camber Capital Management LLC | — | — | 0 |
| AS15138US | MOTOROLA-MOBILITY - Motorola Inc | — | — | 0 |
| AS15222US | GRACE-CLOUD-NET - Grace International Inc. | — | — | 0 |
| AS15257US | NBT-LABS - NBT Labs, LLC | — | — | 0 |
| AS15279US | PHHMORT-AS - PHH Mortgage Corporation | — | — | 0 |
| AS15341US | ALLEGHENYINTEL - Breezeline | — | — | 0 |
| AS16497US | ASN-SMM - The Science Museum of Minnesota | — | — | 0 |
| AS16562US | MVTAS - Mountain View Telephone Company | — | — | 0 |
| AS16586US | CLEARWIRE - T-Mobile USA, Inc. | — | — | 0 |
| AS16798US | IAC-SEARCH-MEDIA - IAC Search & Media Inc | — | — | 0 |
| AS16815US | GOTO-PRIMARY-AS - Goto Group, Inc. | — | — | 0 |
| AS16976US | RE-CLOUD-ASN01 - The REDESIGN Group | — | — | 0 |
| AS17134US | MUSA-COLO-01 - MURPHY OIL USA, INC | — | — | 0 |
| AS17184US | ATL-CBEYOND - Fusion, LLC | — | — | 0 |
| AS17302US | HARTE-HANKS - Harte-Hanks Inc. | — | — | 0 |
| AS17358US | MOZGROUP-CAMPAIGNER - J2 Global Ventures, LLC | — | — | 0 |
| AS17383US | SBLI-USA - SBLI USA life Insurance Company, Inc | — | — | 0 |
| AS17544US | INTELSAT-AP - ASN for Intelsat Asia-Pac Network | — | — | 0 |
| AS18502US | TELEVERGENCE-NYC1 - Televergence Solutions Inc. | — | — | 0 |
| AS18651US | EMANUEL-MEDICAL-CENTER - EMANUEL MEDICAL CENTER, INC | — | — | 0 |
| AS18653US | TOTALITY-2 - Verizon Business | — | — | 0 |
| AS18709US | BOTW - BMO Harris Bank National Association | — | — | 0 |
| AS18738US | EPICOR - EPICOR | — | — | 0 |
| AS18803US | TYLERTECH-18803 - Tyler Technologies, Inc. | — | — | 0 |
| AS18852US | ASHLANDINC-AS - Ashland Inc. | — | — | 0 |
| AS18930US | DOWCORNING151-163 - Dow Corning | — | — | 0 |
| AS19017US | QUALCOMM-QWBS-LV - Qualcomm, Inc. | — | — | 0 |
| AS19051US | SIMPLISAFE-01 - SimpliSafe | — | — | 0 |
| AS19177US | GOIN - BroadbandONE, LLC | — | — | 0 |
| AS19187US | IFOXNETLE-ENSONO-DCCS - Ensono LP | — | — | 0 |
| AS19271US | PEAK10 - Flexential Corp. | — | — | 0 |
| AS19291US | SUNGARDAS-19291 - BroadbandONE, LLC | — | — | 0 |
| AS19360US | SIRIUS-COMPUTER-SOLUTIONS-AS - Sirius Computer Solutions, Inc. | — | — | 0 |
| AS19384US | GRAMTEL001 - CyrusOne LLC | — | — | 0 |
| AS19486US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |