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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. | 211M | 21,081 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,231 |
| 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 | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,588 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,939 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,518 |
| 3.3K |
| — |
| 13 |
| AS14907US | WIKIMEDIA - Wikimedia Foundation Inc. | 3.3K | 11 | 22 |
| AS13996US | ECHOSTAR - Dish Network Corporation | 3.3K | — | 13 |
| AS12037US | FDIC-GOV - Federal Deposit Insurance Corporation | 3.3K | — | 13 |
| AS26804US | CBTS-US-PEERING-01 - CBTS Technology Solutions LLC | 3.3K | 4.1K | 9 |
| AS394621US | DATAHOLDINGS-414-USA - Stack41, llc. | 3.3K | 65.5K | 11 |
| AS25631US | GALLAUDET - Gallaudet University | 3.3K | 1 | 6 |
| AS40300US | DRF-IXNET-HI - DR Fortress, LLC | 3.3K | 5 | 15 |
| AS27602US | PATHFINDER-ASN - Pathfinder Broadband | 3.3K | 65.5K | 9 |
| AS54829US | AS54829-NYITX - NYITX | 3.3K | 65.5K | 5 |
| AS401097US | DICKINSON-EDU - Dickinson College | 3.3K | — | 4 |
| AS62844US | SEIMITSU - The Seimitsu Corporation | 3.3K | — | 13 |
| AS1631US | AS1631 - Radnet Management, Inc. | 3.3K | — | 6 |
| AS22121US | TOPSHAM-COMMUNICATIONS - Topsham Communications LLC | 3.3K | 65.5K | 4 |
| AS15038US | CAMBINC-1 - The Cambridge Incubator, LLC | 3.3K | — | 10 |
| AS22362US | GLOBALTELLINK-HNSS - Global Tel*link Corporation | 3.3K | — | 10 |
| AS400385US | CITIZENS-TELEPHONE-ASN-01 - Citizens Telephone Corporation | 3.3K | — | 13 |
| AS32425US | SKB3-ARIN-BGP - Pixel Factory | 3.3K | 20.5K | 12 |
| AS10298US | AS10298 - CACI Inc., Federal | 3.3K | — | 13 |
| AS400126US | CMCMD - Copper Mountain Consolidated Metropolitan District | 3.3K | — | 3 |
| AS63252US | HCDL-PHOENIX-DATA-CENTER - H5 Data Centers | 3.3K | 8.2K | 8 |
| AS14925US | DELTA - Delta Air Lines | 3.3K | — | 12 |
| AS27298US | REACH4 - REACH4 Communications | 3.3K | 65.5K | 4 |
| AS8116US | BOSTON-SCIENTIFIC-132-189-0-0 - Guidant Corporation | 3.3K | — | 9 |
| AS22258US | COMCAST-22258 - Comcast Cable Communications, LLC | 3.3K | 15 | 22 |
| AS16595US | TORO - The Toro Company | 3.3K | — | 11 |
| AS973US | REVIVE-IT-NETWORK - Revive IT Solutions LLC | 3.3K | — | 13 |
| AS53740US | OPTBIT - optbit LLC | 3.3K | 4.1K | 8 |
| AS1616US | DATABANK-CORELINK - CoreLink Data Centers | 3.3K | — | 6 |
| AS394133US | ATLRETAIL - T5 @ ATLANTA, LLC | 3.3K | — | 4 |
| AS22103US | NEXTIVA - Nextiva, Inc. | 3.3K | — | 13 |
| AS2153US | CENIC-2153 - CENIC | 3.1K | 257 | 13 |
| AS55244US | BLUE-01 - Blue Origin Enterprises, L.P. | 3.1K | 260 | 13 |
| AS32027US | POS-ASN - Port of Seattle | 3.1K | — | 5 |
| AS396018US | INOVALON - Inovalon Inc. | 3.1K | — | 5 |
| AS64280US | PALO-ALTO-NETWORKS - Palo Alto Networks, Inc | 3.1K | — | 12 |
| AS54681US | ROSE-AS - Aubrey Rose | 3.1K | 7K | 48 |
| AS29898US | MONEYGRAM-INTERNATIONAL-INC - MoneyGram International Inc | 3.1K | — | 9 |
| AS14074US | COLGATE - Colgate-Palmolive Co. | 3.1K | 256 | 13 |
| AS397093US | SEH-CDC - St. Elizabeth Medical Center, Inc. | 3.1K | — | 12 |
| AS46830US | ASN-GWINNETT - Gwinnett County Public Schools | 3.1K | — | 8 |
| AS929US | KIRINO - KIRINO LLC | 3.1K | — | 3 |
| AS19743US | AVISP - AVISP.COM | 3.1K | — | 3 |
| AS396167US | BHN-BGP - Blackhawk Network, Inc. | 3.1K | — | 11 |
| AS53285US | WCIN - Evolve Cellular Inc. | 3.1K | — | 9 |
| AS11817US | STAFFORDNET - Stafford Associates Computer Specialists, Inc. | 3.1K | — | 12 |
| AS21818US | BWTELCOM - BWTelcom | 3.1K | 65.5K | 3 |