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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| 7.2K |
| 196.6K |
| 31 |
| AS32365US | SANDYNET - City of Sandy | 7.2K | 65.5K | 5 |
| AS2631US | WBD-AS2631 - Discovery Communications | 7.2K | — | 27 |
| AS10445US | HTG - Huntleigh Telcom | 7.2K | — | 19 |
| AS15069US | SBA - Smith Bucklin & Associates Inc | 7.2K | — | 7 |
| AS36329US | INTRADO - Intrado Life & Safety, Inc. | 7.2K | 24 | 28 |
| AS36319US | ENWHC - NorthShore University HealthSystem | 7.2K | — | 11 |
| AS15195US | AGNETWORX - Alhambra-Grantfork Telephone Company | 7.2K | — | 3 |
| AS19299US | NPC-P1 - The Northern Trust Company | 7.2K | — | 9 |
| AS395107US | RTI - RTI | 7.2K | — | 15 |
| AS396969US | STRADA-COMM - Strada Communications L.L.C. | 7.2K | 1.1M | 5 |
| AS30149US | GS-FFN - The Goldman Sachs Group, Inc. | 7.2K | — | 9 |
| AS398019US | DYNU - Dynu Systems Incorporated | 7.2K | 2 | 30 |
| AS396226US | ITXBB - In the Stix Broadband LLC | 7.2K | — | 18 |
| AS30678US | STATEFARMINSCO-2 - State Farm Mutual Automobile Insurance Company | 7.2K | — | 13 |
| AS55037US | FIRST-BUSEY-CORPORATION - Busey Bank | 7.2K | 256 | 18 |
| AS19404US | QUEST - Quest | 7.2K | — | 19 |
| AS18540US | RECOVERYPOINTSYSTEMS - Recovery Point Systems Inc. | 7.2K | 65.5K | 9 |
| AS29941US | TCCSA - Tri-County Computer Services Association | 7.2K | — | 13 |
| AS16789US | YARDI - YARDI SYSTEMS, INC | 7.2K | — | 19 |
| AS54538US | PAN0001 - PALO ALTO NETWORKS | 7.2K | 22 | 34 |
| AS13530US | DANA-HOLDING-CORPORATION - Dana Limited | 7.2K | — | 11 |
| AS53956US | NEFCOM COMMUNICATIONS - Northeast Florida Long Distance Co., Inc. | 7.2K | — | 14 |
| AS16803US | MYAKKACOMM1 - Myakka Communications, Inc. | 7.2K | — | 4 |
| AS1246US | TLL-WEST - Zito Media | 7.2K | — | 9 |
| AS14379US | N-T-C - The Northern Trust Company | 7.2K | — | 8 |
| AS395040US | GHMO-52 - Green Hills Telephone Corporation | 7.2K | — | 12 |
| AS401479US | DBM-ASN-KC - Database Mart LLC | 7.2K | — | 10 |
| AS23387US | NONE---THIS-IS-A-NEW-ASN-REQUEST - Omsoft Technologies | 7.2K | — | 27 |
| AS32264US | KMTELECOM - KMTelecom | 7.2K | — | 7 |
| AS30303US | OOMA - Ooma, Inc. | 7.2K | — | 19 |
| AS27235US | CVC-INET-33 - COLORADO VALLEY COMMUNICATIONS, INC. | 7.2K | — | 3 |
| AS21902US | WCTA - West Central Telephone Assn | 7.2K | — | 3 |
| AS32508US | GSINET - Granite State Communications | 7.2K | — | 27 |
| AS20347US | GFN-US - Nvidia Corporation | 7.2K | — | 28 |
| AS40076US | DOVETEL - DOVETEL COMMUNICATIONS, LLC. | 7.2K | 65.5K | 7 |
| AS19116US | WASHINGTON-BROADBAND - Washington Broadband, Inc. | 7.2K | 65.6K | 19 |
| AS627US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | 7.2K | — | 6 |
| AS398765US | TEPACONNECT - TEPA Connect LLC | 7.2K | 65.5K | 28 |
| AS17394US | NETAPP-AS-1 - NetApp, Inc. | 7.2K | 3 | 13 |
| AS17212US | TRI-COUNTY-FIBER-COMMUNICATIONS - Tri-County Fiber Communications, LLC | 7.2K | 65.5K | 5 |
| AS401413US | 8TH-FIRE-NETWORK-01 - 8th Fire Communications, LLC | 7.2K | 65.5K | 13 |
| AS17190US | ASN17190 - Washington Metropolitan Area Transit Authority | 7.2K | — | 6 |
| AS401041US | AXIS-SECURITY - Axis Security | 7.2K | — | 28 |
| AS46826US | RAZZO - Razzo Link, Inc. | 7.2K | — | 3 |
| AS54327US | MTWEST - MONTANA WEST, L.L.C. | 7.2K | 65.5K | 7 |
| AS400229US | ELEKTRAFI - ELEKTRAFI INC. | 7.2K | — | 14 |