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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 | 24,512 |
| 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.
32,235 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 | 4,281 |
| 23.8K |
| — |
| 26 |
| AS4474US | TCT-AS - TCT West, Inc. | 23.8K | 65.5K | 13 |
| AS23175US | POGOZONE - PogoZone | 23.8K | — | 11 |
| AS396905US | HOMEWORKS-1 - HomeWorks Connect | 23.8K | 65.5K | 10 |
| AS53824US | LIQUIDWEB - Liquid Web, L.L.C | 23.8K | 69.6K | 9 |
| AS54869US | ROCKCOM-CO - Rockman Communications, Inc. | 23.8K | 65.5K | 6 |
| AS5133US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 23.8K | — | 12 |
| AS36498US | ACCESS-ONE-INC-AS - Access One Inc. | 23.8K | — | 30 |
| AS6134US | XNNET - XNNET LLC | 23.8K | 69.6K | 105 |
| AS63293US | FACEBOOK-OFFNET - Facebook, Inc. | 23.8K | 77 | 170 |
| AS11506US | XSIGO-HQ-ASN - Oracle Corporation | 24.1K | 26.3K | 39 |
| AS33333US | OBJX - objx.net, LLC | 24.1K | 196.6K | 21 |
| AS26878US | TWRS-NYC - Natural Wireless, LLC | 24.1K | — | 10 |
| AS16552US | DIGICERT - Tiggee LLC | 24.1K | 458.8K | 182 |
| AS399493US | PETITJEANFIBER-01 - Petit Jean Fiber | 24.1K | 65.5K | 37 |
| AS54607US | APOG-DFW - Apogee Telecom Inc. | 24.1K | — | 37 |
| AS18624US | CITYOFWILSONNC - Greenlight | 24.3K | — | 25 |
| AS22460US | PEPSICO-NA - PepsiCo, Inc. | 24.3K | — | 67 |
| AS13781US | ENERGYNET - Hopkinsville Electric System | 24.3K | 65.5K | 21 |
| AS53712US | WMCLLP - Wellington Management Company LLP | 24.3K | — | 25 |
| AS20134US | MBCL - Mediatti Broadband Communications, LLC | 24.3K | — | 9 |
| AS32528US | ABBOTT-LABS-2 - ROSS PRODUCTS DIVISION | 24.3K | — | 32 |
| AS10487US | SIMPLENET - Simple Network Communications, Inc | 24.3K | 8.2K | 8 |
| AS398210US | RIVERNET - Lynches River Communications Inc | 24.3K | — | 27 |
| AS19886US | BOFABROKERDEALERSVCS - Bank of America, National Association | 24.3K | — | 48 |
| AS19406US | TWRS-MA - Towerstream I, Inc. | 24.3K | 2K | 12 |
| AS21686US | SYSTEMMETRICS-1 - Hawaiian Telcom Services Company, Inc. | 24.6K | — | 4 |
| AS400439US | CONSOLIDATEDTELCOM-AS - Consolidated Telcom | 24.6K | — | 11 |
| AS38481US | JPMORGAN-TRANSIT-AS-SG-AP - JPMORGAN Singapore | 24.6K | 36 | 9 |
| AS26557US | CARLET-NET - Carleton College | 24.6K | — | 3 |
| AS27563US | SEGRA-UNITY - Spirit Communications | 24.6K | 6 | 38 |
| AS54252US | SP-NYJ - Sprious LLC | 24.6K | — | 96 |
| AS7871US | SEIDATA - SEI Data, Inc. | 24.6K | 65.5K | 5 |
| AS30376US | COLLEGE-OF-ST-SCHOLASTICA - College of St. Scholastica | 24.6K | — | 2 |
| AS14671US | TACONIC - FairPoint Communications | 24.6K | — | 28 |
| AS399268US | CVT - Coosa Valley Technologies Inc | 24.6K | — | 6 |
| AS18463US | MILLPOND-NET-01 - Mill Pond Networks LLC | 24.6K | 32 | 5 |
| AS7968US | LOYOLA-UNIV-CHICAGO - Loyola University Chicago | 24.6K | — | 6 |
| AS17356US | VERMONT-TELE - Vermont Telephone Company, Inc. | 24.6K | 65.5K | 5 |
| AS13860US | LFG - Lincoln National Corporation | 24.6K | — | 26 |
| AS12067US | SHAWNEELINK - ShawneeLink Corporation | 24.6K | 65.5K | 7 |
| AS23265US | POCKETINET - Pocketinet Communications, Inc | 24.6K | — | 4 |
| AS7488US | CNSERVER-AP-AS - CNServer LLC | 24.6K | 257 | 79 |
| AS7268US | ATHENET - Athenet Internet Services | 24.6K | — | 3 |
| AS36794US | META SOLUTIONS PIKETON - META Solutions | 24.6K | — | 26 |
| AS397504US | ECOLINK-01 - ecoLINK | 24.6K | — | 4 |
| AS26794US | DCN-AS - Dakota Carrier Network | 24.8K | 65.5K | 5 |