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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| — |
| — |
| 0 |
| AS53744US | INTELLYS-TX1 - Intellys Corporation | — | — | 0 |
| AS53844US | ERT-01 - eTrigue Corporation | — | — | 0 |
| AS53860US | GCIBROADBAND - Gunby Communications Inc | — | — | 0 |
| AS53874US | CYTEL - Cytel Inc | — | — | 0 |
| AS53875US | TAMU-AS-1 - Texas A&M University | — | — | 0 |
| AS53924US | CKS-MANAGEMENT - CKS Management | — | — | 0 |
| AS54020US | CONTE-25-ASN-ADMO - Contegix | — | — | 0 |
| AS54087US | SECOR - SECOR Asset Management, LP | — | — | 0 |
| AS54141US | JPMORGAN-CPS-MERCH - JPMorgan Chase & Co. | — | — | 0 |
| AS54232US | CSPACE-AS - CSpace | — | — | 0 |
| AS54251US | IPDV001 - IP DataVault LLC | — | — | 0 |
| AS54298US | BSPEEDYINC-1 - Nextlink Broadband | — | — | 0 |
| AS54452US | JACKSONSFOODSTORES - Jacksons Food Stores, Inc. | — | — | 0 |
| AS54473US | TWC-54473-DUKENET - Charter Communications Inc | — | — | 0 |
| AS54480US | PEWRESEARCH-DC - Pew Research Center | — | — | 0 |
| AS54497US | LHWEBTECH-AS - American Domain Names LLC | — | — | 0 |
| AS54580US | BLUEJEANS-GLOBAL - Verizon Business | — | — | 0 |
| AS54581US | JLANSKA-DESIGN - J Lanska Design LLC | — | — | 0 |
| AS54612US | AS54612 - Tipmont Rural Electric Membership Corporation | — | — | 0 |
| AS54628US | I9BIZ - i9biz,inc. | — | — | 0 |
| AS54635US | BATESVILLE - Hillenbrand, Inc. | — | — | 0 |
| AS54659US | TOASTMASTERS - Toastmasters International | — | — | 0 |
| AS54670US | SMSNET - Parsons Corporation | — | — | 0 |
| AS54716US | DECIX-DFW-MAPS - DE-CIX North America Inc. | — | — | 0 |
| AS54763US | MHC - Monarch HealthCare | — | — | 0 |
| AS54780US | MARKEL-CORPORATION - Markel Corporation | — | — | 0 |
| AS54856US | TSS - Performive LLC | — | — | 0 |
| AS54942US | SUNRISE-1 - Sunrise Credit Services, Inc. | — | — | 0 |
| AS54967US | ACORDA-ARDSLEY - Acorda Therapeutics, Inc. | — | — | 0 |
| AS55026US | ILMO-PRODUCTS-COMPANY - ILMO Products Company | — | — | 0 |
| AS55038US | INTERNET2-CLOUD - Internet2 | — | — | 0 |
| AS55090US | MCO1 - MasterBase LLC | — | — | 0 |
| AS55141US | CSMIII-COLUMBIAMS - CableSouth Media III LLC | — | — | 0 |
| AS55188US | METRONAVIATION - Metron Aviation Inc. | — | — | 0 |
| AS55205US | PAT-AS-01 - Patrick Engineering Inc. | — | — | 0 |
| AS56901US | ServerKing ServerKing.io, LLC | — | — | 0 |
| AS59814US | GCXC-EU-AS GCX US llc | — | — | 0 |
| AS62518US | STISD-ASN - South Texas ISD | — | — | 0 |
| AS62543US | GLENDONCAP - Glendon Capital Management LP | — | — | 0 |
| AS62623US | COFRACTAL-002 - Cofractal, Inc. | — | — | 0 |
| AS62689US | MAGNA5-FSIT - Magna5 MS LLC | — | — | 0 |
| AS62699US | WTGC-ODESSA-01 - Musketball Group, LLC | — | — | 0 |
| AS62790US | ASBDCH - Marshfield Clinic Inc. | — | — | 0 |
| AS63021US | PRINCETONNJ - Princeton | — | — | 0 |
| AS63028US | NWAX - NWAX | — | — | 0 |
| AS63054US | ONDECK-COLO-P5 - Enova International, Inc. | — | — | 0 |