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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 |
| 24.1K |
| 65.5K |
| 37 |
| AS11506US | XSIGO-HQ-ASN - Oracle Corporation | 24.1K | 26.3K | 39 |
| AS53340US | FIBERHUB - VegasNAP, LLC | 24.1K | 9.2K | 52 |
| AS13720US | SONYONLINE - Daybreak Game Company LLC | 24.1K | — | 46 |
| AS21743US | ANL-36 - Atlas Networks Corporation | 24.1K | 65.5K | 30 |
| AS26878US | TWRS-NYC - Natural Wireless, LLC | 24.1K | — | 10 |
| AS36498US | ACCESS-ONE-INC-AS - Access One Inc. | 23.8K | — | 30 |
| AS396905US | HOMEWORKS-1 - HomeWorks Connect | 23.8K | 65.5K | 10 |
| AS395111US | KVCNET-2009 - KVCHOSTING.COM LLC | 23.8K | — | 66 |
| AS53824US | LIQUIDWEB - Liquid Web, L.L.C | 23.8K | 69.6K | 9 |
| AS23028US | TEAM-CYMRU - Team Cymru Inc. | 23.8K | 65.6K | 46 |
| AS16552US | DIGICERT - Tiggee LLC | 23.8K | 458.8K | 180 |
| 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 |
| AS23175US | POGOZONE - PogoZone | 23.8K | — | 11 |
| AS4474US | TCT-AS - TCT West, Inc. | 23.8K | 65.5K | 13 |
| AS4997US | AFS-WEST - Zayo Bandwidth | 23.8K | — | 26 |
| AS32281US | CCT-LLC - CCT LLC | 23.6K | 270.3K | 56 |
| AS25660US | CTC - Fidium | 23.6K | 65.5K | 23 |
| AS11062US | MCC-MTCO - Metro Communications Company | 23.6K | — | 7 |
| AS62654US | MENLO-SECURITY - MENLO SECURITY, INC. | 23.6K | — | 92 |
| AS12187US | MTAHQ1 - Metropolitan Transportation Authority | 23.6K | — | 15 |
| AS400164US | RIPPLEFIBER-ASN-01 - Ripple Fiber Inc. | 23.6K | 10.8K | 82 |
| AS16502US | CITY-OF-PHOENIX - City of Phoenix | 23.6K | — | 34 |
| AS402236US | PATRIOT-BROADBAND - Patriot Broadband LLC | 23.6K | — | 92 |
| AS44US | S1-DOMAIN - Lawrence Livermore National Laboratory | 23.6K | — | 6 |
| AS18964US | AHSSSCI - Adventist Health System Sunbelt Healthcare Corporation | 23.6K | — | 14 |
| AS20335US | UDT - United Data Technologies, Inc. | 23.6K | 67.1K | 29 |
| AS33745US | ATOS-BLYTHEWOOD - Atos IT Solutions and Services Inc | 23.6K | — | 14 |
| AS19605US | 3RC - 3 Rivers Telephone Cooperative, Inc. | 23.3K | — | 29 |
| AS53306US | OUTSCALE-INC - OUTSCALE INC | 23.3K | — | 8 |
| AS40266US | SQN-NET - SpeedyQuick Networks Inc | 23.3K | — | 31 |
| AS10355US | DSCGA - Digital Service Consultants | 23.3K | — | 15 |
| AS64249US | ENDOFFICE - Charles River Operation | 23.3K | 69.9K | 63 |
| AS26667US | RUBICONPROJECT - Magnite, Inc. | 23.3K | 7 | 18 |
| AS17018US | QTS-SAC - Quality Technology Services, LLC | 23.3K | 65.5K | 14 |
| AS40230US | COLUMBUS-TEL-KS - Columbus Telephone Company | 23.3K | 65.5K | 55 |
| AS395172US | NTWLS - Nex-Tech Wireless, LLC | 23.3K | 65.5K | 11 |
| AS27047US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 23.3K | — | 57 |
| AS1766US | ASN-EXXONMOBIL-US - Exxon Mobil Corporation | 23.3K | — | 27 |
| AS6062US | NETPLEX - NETPLEX | 23K | 65.5K | 12 |
| AS17403US | HSIS-AS - HyperSurf Internet Services, Inc. | 23K | — | 5 |
| AS11049US | DYN - Oracle Corporation | 23K | 28.3K | 48 |
| AS27216US | AIR-ADVANTAGE-ASN - Air Advantage LLC | 23K | 65.5K | 81 |
| AS22792US | MNET - MOUNTAINET | 23K | 65.5K | 24 |
| AS16677US | AZO - AutoZone Inc | 23K | — | 16 |
| AS30165US | DALTON-UTILITIES-OPTILINK - Dalton Utilities | 23K | 65.5K | 20 |