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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| — |
| — |
| 0 |
| AS10516US | ORB-BIT - Orb-bit Design Group | — | — | 0 |
| AS7434US | CSTONE-WISP - SEGASoft, Inc. | — | — | 0 |
| AS4071US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS10562US | AIRNET - AIRnet Internet Services, Inc. | — | — | 0 |
| AS10296US | GBNETMPNNETWORK - GBM Corporation | — | — | 0 |
| AS10458US | JUNIPER-TEST-AS - Juniper Networks, Inc. | — | — | 0 |
| AS10258US | SHN-AS - Sapient Health Network | — | — | 0 |
| AS10245US | ASN-NEXTWEB-R3 - Nextweb, Inc | — | — | 0 |
| AS15014US | TTS-ASN - Total Tool Supply, Inc. | — | — | 0 |
| AS16892US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS16675US | CLEARDATA - Clear DATA Networks Inc. | — | — | 0 |
| AS6607US | HOMENET - Homenet Communications, Inc. | — | — | 0 |
| AS6396US | COASTALNET-ASN - Global Information Exchange Corp | — | — | 0 |
| AS7139US | BIZTRAVELCAM - Biztravel.com | — | — | 0 |
| AS6225US | CENTURYLINK-LEGACY-QWEST-PROJECT-LION1 - CenturyLink Communications, LLC | — | — | 0 |
| AS6992US | NETSCAPE-AS - Yahoo Holdings Inc. | — | — | 0 |
| AS7223US | CSRLINK - CSRLink, Inc. | — | — | 0 |
| AS6644US | PARSECWEB-AS - PARSEC | — | — | 0 |
| AS7012US | AS7012 - JMC Capital, LLC | — | — | 0 |
| AS6617US | PBB-MY - Information Management Systems | — | — | 0 |
| AS6410US | ASICOM - ASI Communications, Inc. | — | — | 0 |
| AS5356US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5183US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5079US | DIAL-CALL - T-Mobile USA, Inc. | — | — | 0 |
| AS5075US | ASN-ATTGMS - AT&T BMGS | — | — | 0 |
| AS5914US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6019US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS19027US | XO-ASN11 - Verizon Business | — | — | 0 |
| AS5851US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS3079US | CITI13 - Citigroup Inc. | — | — | 0 |
| AS3959US | ONEWORLD - One World Telecommunications, Inc. | — | — | 0 |
| AS3951US | INS-AZURE-EXTRANET-VHUBS - CenturyLink Communications, LLC | — | — | 0 |
| AS4337US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4564US | DNIC-AS-04564 - United States Department of Defense (DoD) | — | — | 0 |
| AS3876US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS4440US | IIIMEFDJOSS - Commanding General | — | — | 0 |
| AS3355US | LITC - Lockheed Martin Corporation | — | — | 0 |
| AS4206US | INMS - Internet Mississippi | — | — | 0 |
| AS40669US | EKIT-AS - ekit | — | — | 0 |
| AS3056US | AB-ASN - Allen-Bradley Company, Inc. | — | — | 0 |
| AS30574US | BUSINESS-WIRE - Business Wire | — | — | 0 |
| AS3721US | ASN-MIKUNI - Mikuni Berkeley R&D Corp. | — | — | 0 |
| AS3767US | SOSCORP-AS - SOS Corp. | — | — | 0 |
| AS3749US | TECNET - Tennessee Board Of Regents | — | — | 0 |
| AS6316US | AS-PAETEC-NET - Windstream Communications LLC | — | — | 0 |
| AS3547US | DNIC-AS-03547 - United States Department of Defense (DoD) | — | — | 0 |