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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 | 23,999 |
| 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.
32,154 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 231 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,882 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,990 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,318 |
| — |
| — |
| 0 |
| AS16458US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16454US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS19374US | AS-TIERP-19374 - TierPoint, LLC | — | — | 0 |
| AS19069US | ASN-19069 - Nasdaq, Inc. | — | — | 0 |
| AS19057US | KYN-GTS - Kyndryl | — | — | 0 |
| AS13834US | AGLRSC - AGL Resources Inc. | — | — | 0 |
| AS14533US | UHCC - The Union Hospital of Cecil County, Inc. | — | — | 0 |
| AS5241US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5143US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5127US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS4595US | 2020-4595 - 2020 Communications LLC | — | — | 0 |
| AS4938US | SPRINTNET-SC - Sprint Mid-Atlantic Telecom | — | — | 0 |
| AS4550US | COGENT-4550 - Cogent Communications, LLC | — | — | 0 |
| AS4525US | POPPE - 707 California Street | — | — | 0 |
| AS5191US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5678US | PBI-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5309US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS6354US | LYCOS - Lycos, Inc. | — | — | 0 |
| AS11000US | BAC-MLAMRS - Bank of America, National Association | — | — | 0 |
| AS11561US | DFIN-AS1 - EDGAR Online, Inc. | — | — | 0 |
| AS10889US | TRENSEN - Trensen Inc. | — | — | 0 |
| AS10828US | CENTURYLINK-QC-MOE-MINNESOTA - CenturyLink Communications, LLC | — | — | 0 |
| AS7449US | TIOGA-NET - Tioga Communications | — | — | 0 |
| AS10621US | FIRSTNETHOU - First Internet | — | — | 0 |
| AS13404US | ASN-13404 - GoFIBER | — | — | 0 |
| AS13368US | VYVE-BROADBAND - Vyve Broadband | — | — | 0 |
| AS11754US | GUS - GLOBAL IT | — | — | 0 |
| AS6010US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS20245US | VONAGE-20245 - Vonage Holdings, Inc. | — | — | 0 |
| AS20468US | WINDSTREAM-COMMUNICATIONS - Windstream Communications LLC | — | — | 0 |
| AS19986US | BUC-INTL - BUC INTERNATIONAL | — | — | 0 |
| AS21667US | NTSLLC-AS1 - Nirvana Technology Solutions LLC | — | — | 0 |
| AS22406US | HARTEHANKSDIRECT - Harte-Hanks/Direct | — | — | 0 |
| AS13642US | CITI-FFG - Citigroup Inc. | — | — | 0 |
| AS21863US | INTELIVANT-CONSULTING - intelivant consulting, llc | — | — | 0 |
| AS21627US | RSQ-AS-2010 - RingSquared | — | — | 0 |
| AS21580US | CAL-NET-INC - Cal.net, Inc. | — | — | 0 |
| AS394557US | ROKU - Roku Inc. | — | 3 | 3 |
| AS6213US | GETONTHENET - OnThe.Net, Inc. | — | — | 0 |
| AS6146US | ZUORA - Zuora, Inc | — | — | 0 |
| AS6274US | COGENT-6274 - Cogent Communications, LLC | — | — | 0 |
| AS5827US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5918US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6965US | DTS-SOUTH-ASIAN - Diplomatic Telecommunications Services | — | — | 0 |
| AS6962US | DTS-EUROPE - Diplomatic Telecommunications Services | — | — | 0 |
| AS397209US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |