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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. | 210.9M | 20,988 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,222 |
| 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 | 3,578 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,934 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.3M | 4,544 |
| 24.6K |
| — |
| 4 |
| AS63293US | FACEBOOK-OFFNET - Facebook, Inc. | 24.6K | 78 | 174 |
| AS7268US | ATHENET - Athenet Internet Services | 24.6K | — | 3 |
| AS12067US | SHAWNEELINK - ShawneeLink Corporation | 24.6K | 65.5K | 7 |
| AS400439US | CONSOLIDATEDTELCOM-AS - Consolidated Telcom | 24.6K | — | 11 |
| AS30376US | COLLEGE-OF-ST-SCHOLASTICA - College of St. Scholastica | 24.6K | — | 2 |
| AS14671US | TACONIC - FairPoint Communications | 24.6K | — | 28 |
| AS21686US | SYSTEMMETRICS-1 - Hawaiian Telcom Services Company, Inc. | 24.6K | — | 4 |
| AS149US | DNIC-AS-00149 - United States Department of Defense (DoD) | 24.6K | — | 14 |
| AS7871US | SEIDATA - SEI Data, Inc. | 24.6K | 65.5K | 5 |
| AS17356US | VERMONT-TELE - Vermont Telephone Company, Inc. | 24.6K | 65.5K | 5 |
| AS14315US | 1GSERVERS - 1GSERVERS, LLC | 24.3K | 655.4K | 68 |
| AS20134US | MBCL - Mediatti Broadband Communications, LLC | 24.3K | — | 9 |
| AS30030US | WALMART-GUEST-TENANT - Wal-Mart Stores, Inc. | 24.3K | — | 30 |
| AS10487US | SIMPLENET - Simple Network Communications, Inc | 24.3K | — | 7 |
| AS18624US | CITYOFWILSONNC - Greenlight | 24.3K | — | 25 |
| AS19406US | TWRS-MA - Towerstream I, Inc. | 24.3K | 2K | 12 |
| AS13781US | ENERGYNET - Hopkinsville Electric System | 24.3K | 65.5K | 21 |
| AS32528US | ABBOTT-LABS-2 - ROSS PRODUCTS DIVISION | 24.3K | — | 32 |
| AS16552US | DIGICERT - Tiggee LLC | 24.1K | 458.8K | 182 |
| AS26878US | TWRS-NYC - Natural Wireless, LLC | 24.1K | — | 10 |
| AS11506US | XSIGO-HQ-ASN - Oracle Corporation | 24.1K | 26.3K | 39 |
| AS53712US | WMCLLP - Wellington Management Company LLP | 24.1K | — | 24 |
| AS396006US | SPITWSPOTS-HOM - SPITwSPOTS | 24.1K | — | 46 |
| AS399138US | MICROLINK-CORE - Microlink Network | 24.1K | — | 50 |
| AS36383US | GEN-AS1 - Google LLC | 24.1K | — | 21 |
| AS36498US | ACCESS-ONE-INC-AS - Access One Inc. | 23.8K | — | 30 |
| AS4997US | AFS-WEST - Zayo Bandwidth | 23.8K | — | 26 |
| AS12187US | MTAHQ1 - Metropolitan Transportation Authority | 23.8K | — | 16 |
| AS396905US | HOMEWORKS-1 - HomeWorks Connect | 23.8K | 65.5K | 10 |
| AS33333US | OBJX - objx.net, LLC | 23.8K | 196.6K | 20 |
| AS398210US | RIVERNET - Lynches River Communications Inc | 23.8K | — | 26 |
| AS396319US | US-INTERNET-396319 - Oxylabs | 23.8K | 1M | 32 |
| AS18434US | FNIS - Fidelity National Information Services, Inc. | 23.8K | — | 93 |
| AS63062US | HUGHESNET-CDN - Hughes Network Systems, LLC | 23.8K | — | 39 |
| AS54869US | ROCKCOM-CO - Rockman Communications, Inc. | 23.8K | 65.5K | 6 |
| AS4474US | TCT-AS - TCT West, Inc. | 23.8K | 65.5K | 13 |
| AS23175US | POGOZONE - PogoZone | 23.8K | — | 11 |
| AS53824US | LIQUIDWEB - Liquid Web, L.L.C | 23.8K | 69.6K | 9 |
| AS399493US | PETITJEANFIBER-01 - Petit Jean Fiber | 23.8K | 65.5K | 36 |
| AS11062US | MCC-MTCO - Metro Communications Company | 23.6K | — | 7 |
| AS399356US | KOSCIUSKO-CONNECT-01 - Kosciusko Connect LLC | 23.6K | — | 34 |
| AS33745US | ATOS-BLYTHEWOOD - Atos IT Solutions and Services Inc | 23.6K | — | 14 |
| AS53340US | FIBERHUB - VegasNAP, LLC | 23.6K | 9.2K | 51 |
| AS6134US | XNNET - XNNET LLC | 23.6K | 69.6K | 104 |
| AS16502US | CITY-OF-PHOENIX - City of Phoenix | 23.6K | — | 34 |
| AS36223US | SPANISHFORK-COMMUNITY-NETWORK - Spanish Fork City | 23.6K | 9 | 68 |