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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| — |
| — |
| 0 |
| AS22321US | PLUMCHOICE-DC1 - PlumChoice | — | — | 0 |
| AS36650US | NEXTCO-AS - Nextera Communications LLC | — | — | 0 |
| AS33612US | TUMBLR - Yahoo Holdings Inc. | — | — | 0 |
| AS33531US | CARTARET-EQUITIES-PROD - Summit Securities Group LLC | — | — | 0 |
| AS33216US | ANALOG DEVICES - Analog Devices, Inc. | — | — | 0 |
| AS33291US | MANOV-ISP - Manov Investments, LLC | — | — | 0 |
| AS33144US | NAVIGANTCONSULTING - Guidehouse Inc. | — | — | 0 |
| AS399477US | RYAN-PUBLIC-ASN - Ryan Companies US, Inc. | — | 256 | 1 |
| AS26656US | MISYS-AS - Finastra Technology Inc. | — | — | 0 |
| AS25919US | CONST-89-25919 - ConstructConnect Inc. | — | — | 0 |
| AS26390US | SERVESA-LLC - Servesa LLC | — | — | 0 |
| AS26509US | AS-CDS-OFFICE-1 - Computer Development Systems, LLC | — | — | 0 |
| AS22967US | CIMATELECOM1 - Cima Telecom, Inc. | — | — | 0 |
| AS23328US | EST-INC-ASN - EST, Inc. | — | — | 0 |
| AS19227US | OK-INTERNET - Terra World, Inc. | — | — | 0 |
| AS17228US | ATT-CERFNET-BLOCK - AT&T Enterprises, LLC | — | — | 0 |
| AS17284US | VONAGE-17284 - Vonage Holdings, Inc. | — | — | 0 |
| AS20172US | VGRS-AC27 - VeriSign Global Registry Services | — | — | 0 |
| AS18741US | SOUNDHOUND1 - SoundHound, Inc. | — | — | 0 |
| AS15287US | EASYVM-LLC - EasyVM, LLC | — | — | 0 |
| AS15170US | MATCHNET - Spark Networks Limited | — | — | 0 |
| AS14683US | WILSHIREASSOCIATESINC - Wilshire Associates Incorporated | — | — | 0 |
| AS14824US | ZYNGA-01 - TAKE-TWO INTERACTIVE SOFTWARE, INC. | — | — | 0 |
| AS19947US | VINS-AS-2 - Flexential Colorado Corp. | — | — | 0 |
| AS20000US | FULCRM-00 - Fulcrum Analytics, Inc | — | — | 0 |
| AS19683US | FORENDATA - Foren Data, Inc. | — | — | 0 |
| AS20403US | DSL-ONLY-PDX - DSL-Only, Inc | — | — | 0 |
| AS21657US | FRTCC-LOUISANET - Foothills Rural Telephone Cooperative Corporation, Inc. | — | — | 0 |
| AS21776US | BLOSSOMTEL-AS - CHICKASAW TELEPHONE | — | — | 0 |
| AS19144US | UPMC-SUSQ - UPMC | — | — | 0 |
| AS40253US | ELYSIA-ROOT-LC - Elysia Root L.C. | — | 3 | 3 |
| AS19059US | CODERO-ASHBURN - Patmos Hosting, Inc. | — | — | 0 |
| AS19026US | XO-ASN14 - Verizon Business | — | — | 0 |
| AS3612US | DELL-BLK - Dell, Inc. | — | — | 0 |
| AS11518US | ROBBINSMORTON - Robins & Morton, L.L.C. | — | — | 0 |
| AS11846US | BROADVIEWNET - Windstream Communications LLC | — | — | 0 |
| AS11853US | ASN-INTERNAP-BLK - Unitas Global | — | — | 0 |
| AS10994US | TWC-10994-NA - Charter Communications Inc | — | — | 0 |
| AS11129US | BCMONE-CN - BCM One, Inc. | — | — | 0 |
| AS10887US | BPSI-AS - BPSI Internet Services | — | — | 0 |
| AS10831US | CENTURYLINK-QC-MOE-PORTLAND - CenturyLink Communications, LLC | — | — | 0 |
| AS14399US | HUBRIS2 - IdeaTek Telcom, LLC | — | — | 0 |
| AS13859US | CERNER - Cerner Corporation | — | — | 0 |
| AS14071US | PQ-CORPORATION - PQ Corporation | — | — | 0 |
| AS14082US | GOES - Global Online Electronic Services | — | — | 0 |
| AS21988US | HENDRICK-AUTO-GROUP - Hendrick Automotive Group | — | — | 0 |