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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 |
| AS396640US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS11143US | OECONNECTION - OEConnection, LLC | — | — | 0 |
| AS11420US | TRIBUNE-PUBLISHING-COMPANY - Tribune Publishing Company, LLC | — | — | 0 |
| AS10817US | GACONNECT - Georgia Connection.net | — | — | 0 |
| AS10783US | IWSC-AS1 - Internet Web Service Corporation | — | — | 0 |
| AS219023US | XELXVEX XELXVEX GLDOBAL INC | — | — | 0 |
| AS12263US | STBH - Saint Bernard Hospital | — | — | 0 |
| AS400395US | HONGSHIN-AS-NA - Hongshin, Inc. | — | 1 | 1 |
| AS197139US | T-MAN-AS T-Man Software LLC | — | — | 0 |
| AS35882US | TERADATACLOUD1 - Teradata Operations, Inc. | — | — | 0 |
| AS395492US | IOVATION-AS15301 - Trans | — | — | 0 |
| AS33497US | CHARTER-33497-NA - Charter Communications LLC | — | — | 0 |
| AS33386US | EFRONTIER-0 - Adobe Inc. | — | — | 0 |
| AS33423US | AS-SGT - SierraGem Technologies, LLC | — | — | 0 |
| AS33064US | SNEI-SD - Sony Media Software and Services Inc. | — | — | 0 |
| AS33049US | TELENAV2004 - TeleNav, Inc. | — | — | 0 |
| AS36512US | ABCO - Goodman Manufacturing Company, L.P. | — | — | 0 |
| AS395232US | NEAXCOMM-NY - Nexacomm, LLC | — | — | 0 |
| AS35961US | AIM-33-AS - CareIon Medical Benefits Management, Inc. | — | — | 0 |
| AS396149US | ASHIX-RS - Cloudie Networks LLC | — | — | 0 |
| AS33681US | COMPTRK - Competitrack Inc. | — | — | 0 |
| AS33698US | SECURE-24-DCA - NTT Managed Services Americas, LLC | — | — | 0 |
| AS30607US | 302-DIRECT-MEDIA-ASN - Cisco OpenDNS, LLC | — | — | 0 |
| AS30603US | CHARTER-30603-NA - Charter Communications LLC | — | — | 0 |
| AS30235US | TWINSERVERS - Twinservers Hosting Solutions Inc. | — | — | 0 |
| AS30711US | 2WIRE-CORP - Vantiva USA Shared Services Inc. | — | — | 0 |
| AS30480US | ONENET-OKCIX-AS-1 - OneNet | — | — | 0 |
| AS32807US | ASN-INTERFACE-INC - INTERFACE INCORPORATED | — | — | 0 |
| AS395087US | CRANIAL-TECHNOLOGIES - Cranial Technologies, Inc. | — | — | 0 |
| AS396577US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396666US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS397113US | INGRESS-AUDIO-01 - Ingress Audio, LLC | — | — | 0 |
| AS397046US | CRYSTALBN - Crystal Broadband Networks, INC. | — | — | 0 |
| AS396808US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396901US | ABIOM-1 - Abiomed Inc. | — | — | 0 |
| AS396732US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396718US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS400546US | EXAGRID-ASN - Exagrid | — | 2 | 2 |
| AS63292US | CIX - DC74 LLC | — | — | 0 |
| AS394849US | MSUBILLINGS - Montana State University - Billings | — | — | 0 |
| AS394833US | CENGAGE-CASFO - Cengage Learning, Inc. | — | — | 0 |
| AS394616US | TIRE-HOSTING-INC - THE WHEEL AND TIRE CLUB, INC | — | — | 0 |
| AS394692US | STARWOOD-IRVINE-CA - Marriott International, Inc. | — | — | 0 |
| AS395808US | JET-COMMUNICATIONS - Jet Communications, LLC | — | — | 0 |
| AS395756US | MARQUETTECO - Marquette Companies LLC | — | — | 0 |
| AS395385US | SAP-NS2-DC1 - SAPNS2 | — | — | 0 |