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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,749 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,226 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| 13.3K |
| — |
| 22 |
| AS54075US | ARBUCKLE-COMMUNICATIONS - Arbuckle Communications, LLC | 13.3K | — | 52 |
| AS1294US | NTTDATA-SERVICES-AS1 - NTT DATA Services Holdings Corporation | 13.3K | — | 15 |
| AS49532US | SERVERHUB-NL Eonix Corporation | 13.3K | 65.5K | 20 |
| AS46513US | ALARM-PROD-US-AS - Alarm.com, Inc. | 13.3K | 1K | 19 |
| AS1410US | CELLONE-IP - SMITH BAGLEY INC | 13.3K | — | 19 |
| AS395784US | MERS-ASN - MERSCORP Holdings, Inc. | 13.3K | — | 30 |
| AS395748US | NS - NetSpeed LLC | 13.3K | 20.5K | 65 |
| AS46313US | WAL-MART4 - Wal-Mart Stores, Inc. | 13.3K | — | 15 |
| AS30387US | NIH-NET-NCCS - National Institutes of Health | 13.3K | — | 12 |
| AS11767US | QTS-MIA - Quality Technology Services, LLC | 13.3K | 65.5K | 10 |
| AS20205US | AMPLEX - Amplex Electric, Inc. | 13.3K | 65.5K | 10 |
| AS13348US | CIGNA-2 - CIGNA | 13.3K | — | 22 |
| AS22843US | PROOFPOINT-ASN-US-EAST - Proofpoint, Inc. | 13.3K | 4 | 49 |
| AS15206US | TVEC - TVEC Connect, LLC | 13.3K | — | 21 |
| AS18883US | FIBERNET-NETWORK-OPERATIONS-CENTER - FiberNet Communications L.C. | 13.3K | 65.5K | 42 |
| AS21803US | CEDAR-NETWORKS - Cedar Networks | 13.3K | — | 52 |
| AS11168US | SCC - SMART CHOICE COMMUNICATIONS, LLC | 13.3K | — | 20 |
| AS398963US | LBUSD-PUBLIC-IP - Long Beach Unified School District | 13.3K | — | 5 |
| AS30217US | DESYNC - Desync Networks | 13.3K | 4 | 10 |
| AS31890US | ROCKET - Rocket Limited Partnership | 13.3K | — | 9 |
| AS14446US | CNT-ASN - Central Newspapers Technologies Inc. | 13.3K | — | 6 |
| AS29979US | PWN-ASBLK - Pioneer Broadband | 13.3K | — | 4 |
| AS11942US | IPGLOBAL - IP Global, LLC. | 13.3K | 65.5K | 8 |
| AS63150US | BAGE - BAGE CLOUD LLC | 13.3K | 2.8K | 102 |
| AS40107US | QTS-DFW - Quality Technology Services, LLC | 13.6K | 65.5K | 18 |
| AS13737US | AS-INCX - Interconnecx, LLC | 13.6K | 1.3K | 75 |
| AS394475US | MCECFIBER-A01 - MCEC Fiber, Inc. | 13.6K | — | 25 |
| AS1378US | IBEL - Interbel Telephone Cooperative, Inc. | 13.6K | — | 10 |
| AS26277US | SERVERPOINT - ServerPoint.com | 13.6K | 63 | 113 |
| AS23535US | HOSTROCKET - HostRocket.com, Inc. | 13.6K | 256 | 9 |
| AS52129US | PROOFPOINT-ASN-EU Proofpoint, Inc. | 13.6K | 32 | 48 |
| AS11030US | QUALCOMM - Qualcomm, Inc. | 13.6K | 768 | 39 |
| AS5842US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 13.6K | — | 11 |
| AS17139US | COLORADOCOLO - Corporate Colocation Inc. | 13.6K | 65.5K | 21 |
| AS22976US | FIRST-CITIZENS-01 - First-Citizens Bank & Trust Company | 13.6K | — | 17 |
| AS32228US | ASISN - ISN Communications | 13.6K | — | 17 |
| AS18943US | YELCOT - YELCOT TELEPHONE COMPANY | 13.6K | 65.5K | 39 |
| AS30313US | IRS - Internal Revenue Service | 13.6K | 65.5K | 17 |
| AS3910US | CENTURYLINK-EUROPE-LEGACY-QWEST - CenturyLink Communications, LLC | 13.6K | — | 21 |
| AS7346US | SPRINGTIDE-AS - Springtide Communications | 13.6K | — | 49 |
| AS30081US | CACHENETWORKS - CacheFly | 13.6K | 41 | 91 |
| AS20098US | BCBS-AL - Blue Cross and Blue Shield of Alabama | 13.6K | — | 6 |
| AS32611US | AS32611 - MERCEDES-BENZ USA, LLC | 13.6K | 65.5K | 11 |
| AS26326US | US-SIGNAL-AZ01 - US Signal Company, L.L.C. | 13.6K | 256 | 10 |
| AS27294US | RESERVETEL - Reserve Long Distance Company, Inc | 13.6K | — | 5 |
| AS32590US | VALVE-CORPORATION - Valve Corporation | 13.6K | 33 | 78 |