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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 512 |
| — |
| 2 |
| AS197904US | WL7JJ Joshua Jones | 512 | — | 2 |
| AS396391US | GUILFORD-COLLEGE - Guilford College | 512 | — | 2 |
| AS23209US | VHDA20011260123220 - Virginia Housing Development Authority | 512 | — | 2 |
| AS53664US | PICOTRADING - Pico Quantitative Trading, LLC | 512 | — | 2 |
| AS33555US | STONEMARCHE - Stonemarche Network CoOp. | 512 | — | 2 |
| AS54721US | AS-NGEN - NGEN Networks | 512 | 5 | 7 |
| AS17085US | AS-STOPLLC - SATELLITE TRACKING OF PEOPLE | 512 | — | 1 |
| AS395257US | SINGULARIS-001 - Singularis IT, LLC | 512 | 65.5K | 3 |
| AS32025US | HASBRO - Hasbro, Inc. | 512 | — | 2 |
| AS18645US | UMHB-BELTON - UMHB | 512 | — | 2 |
| AS25924US | GCM - Graham Capital Management, L.P. | 512 | — | 2 |
| AS26761US | CMAL-ECOM - Designs Apparel, Inc. | 512 | — | 2 |
| AS26109US | L-PERRIGO-GLOBAL - L. Perrigo Company | 512 | — | 1 |
| AS1445US | MILLIMAN - Milliman, Inc. | 512 | — | 1 |
| AS400479US | BOXXTECH-ASN - Boxx Technologies LLC | 512 | — | 2 |
| AS12098US | MUFG BANK LTD - MUFG Bank Ltd. | 512 | — | 2 |
| AS53738US | DDC-JVL - DATA DIMENSIONS CORP | 512 | — | 1 |
| AS22676US | CITY-OF-COVINGTON-GA - City Of Covington, Georgia | 512 | — | 1 |
| AS399967US | HOMESERVEUSA-BGP-ASN - HomeServe USA Corp | 512 | — | 2 |
| AS400306US | PHEAA-141200 - PHEAA, AES, FedLoan Servicing | 512 | — | 2 |
| AS53262US | MSC-AS - Mercy Medical Center | 512 | — | 2 |
| AS32221US | BARONSERVICES - Baron Services | 512 | — | 2 |
| AS54700US | LEARN-INTERNAL - LEARN | 512 | — | 2 |
| AS398097US | WINTRUST-FINANCIAL-CORPORATION-EG-IL - Wintrust Financial Corporation | 512 | — | 2 |
| AS400357US | SOUTHCOAST-HEALTH-01 - Southcoast Health System, Inc. | 512 | — | 2 |
| AS25618US | SHINE - SHINESHAN | 512 | 256 | 3 |
| AS395132US | MWCU - Meriwest Credit Union | 512 | — | 2 |
| AS393813US | QUANTUM-HEALTH - Quantum Health Inc | 512 | — | 2 |
| AS46655US | ALIGN-NYC - ALIGN Inc. | 512 | — | 2 |
| AS393378US | SACFCU-P7148 - Cobalt Credit Union | 512 | — | 2 |
| AS60154US | connectria-asn-1 Connectria, LLC | 512 | 524.3K | 3 |
| AS397418US | SYNAMEDIA - Synamedia | 512 | 4.1K | 3 |
| AS397326US | SFN-ASN - South Front Networks | 512 | 256 | 3 |
| AS15331US | BCI-LAB - Blackfoot Telephone Cooperative, Inc. | 512 | 256 | 2 |
| AS399392US | FIREDOG-AS399392 - FIRE DOG SSC, LLC | 512 | 4.1K | 3 |
| AS26353US | REALNETWORKS - REALNETWORKS LLC | 512 | — | 1 |
| AS395397US | AMENTUM-ASN - Amentum Services, Inc. | 512 | — | 1 |
| AS14911US | TMGAS - Taylor Made Golf Company, Inc. | 512 | — | 2 |
| AS394730US | LEADFUSION - Leadfusion, Inc. | 512 | — | 1 |
| AS46640US | NWNCOMM - NWN Corporation | 512 | — | 2 |
| AS33463US | CITIGROUP-GLOBAL-ANYCAST-DNS - Citigroup Inc. | 512 | — | 2 |
| AS401262US | TREDYFFRIN-EASTTOWN-SD - Tredyffrin/Easttown School District | 512 | — | 2 |
| AS14337US | CVMIN-AS1 - CVM, INC | 512 | — | 2 |
| AS402423US | LUYANI - Luyani | 512 | — | 2 |
| AS393661US | NEVADACOUNTY-CA - County of Nevada | 512 | — | 1 |
| AS20217US | PERCEPTA-GW1-AS - Percepta | 512 | — | 2 |