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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 | 23,961 |
| 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.
32,159 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| — |
| — |
| 0 |
| AS400094US | ANTERIOR-BROADBAND - Anterior Broadband | — | — | 0 |
| AS400106US | CLOUD9-VOIPNETWORKS-02 - VoIP Networks | — | — | 0 |
| AS400178US | ALEF-EDGE - Alef Edge, Inc. | — | — | 0 |
| AS400199US | TRADEZERO-ASN1 - TradeZero USA Inc | — | — | 0 |
| AS400300US | VSCLOUD-NETWORK-LLC - VSCloud Network | — | — | 0 |
| AS400320US | VC-WIRELESS - Valley Center Wireless | — | — | 0 |
| AS400350US | APOG-TSU - Apogee Telecom Inc. | — | — | 0 |
| AS400453US | FSB-ASN1 - Five Star Bank | — | — | 0 |
| AS400532US | FFTECH01 - Fairfield Technology | — | — | 0 |
| AS400544US | KOTILLO - Kotillo, LLC | — | — | 0 |
| AS400572US | MICROSOFT-AZURE-DEDICATED - Microsoft Corporation | — | — | 0 |
| AS400590US | ACC-BGP - American Chemistry Council, Inc | — | — | 0 |
| AS400646US | IMPRESSIVE-1 - Impressive Networks Inc. | — | — | 0 |
| AS400655US | NIXLABS - NixLabs Networks | — | — | 0 |
| AS400809US | RDK-IT-01 - RDK GROUP LLC | — | — | 0 |
| AS400823US | HCDL-NEW-YORK-DATA-CENTER - H5 Data Centers | — | — | 0 |
| AS400874US | VMW-NASA-IPV6 - Avago Technologies U.S. Inc. | — | — | 0 |
| AS400876US | VMW-NASA-IPV6 - Avago Technologies U.S. Inc. | — | — | 0 |
| AS400922US | EZSCALE-HOSTING-LLC - EZSCALE Hosting LLC | — | — | 0 |
| AS401083US | DCI - Diversified Communications, Inc. | — | — | 0 |
| AS401087US | CYBERMATRIX - CyberMatrix Limited | — | — | 0 |
| AS401126US | INF - InfinitiNetwork LLC | — | — | 0 |
| AS401134US | CODINGBUTTER-AS - CodingButter, LLC | — | — | 0 |
| AS401172US | INSPICI-ARIN - Inspici LLC | — | — | 0 |
| AS401199US | AS401199 - TenSpire Network | — | — | 0 |
| AS401210US | KEENAGI-AS-001 - Keen Technologies, Inc. | — | — | 0 |
| AS401211US | NEURIAL-ISP - Neurial | — | — | 0 |
| AS401217US | NXP-CORE-01 - NextPointe | — | — | 0 |
| AS401242US | RRNM - City Of Rio Rancho | — | — | 0 |
| AS401392US | THOUGHTSPOT - Thoughtspot Inc. | — | — | 0 |
| AS401505US | HSP-DOTHOUSE-CODMAN - Dothouse Health, Inc. | — | — | 0 |
| AS401528US | ASN-MCRI - Monarch Casino & Resort, Inc | — | — | 0 |
| AS401531US | ACNB-NET01 - ACNB Bank | — | — | 0 |
| AS401585US | FLAPJACKS-01 - Prime Security Corp. | — | — | 0 |
| AS401685US | AREAX-AS - AreaX-Networks LLC | — | — | 0 |
| AS401757US | MEXCAP - Mexcap, LLC | — | — | 0 |
| AS401784US | URBANSKY - URBAN SKY LLC | — | — | 0 |
| AS401923US | GCPUD-BUSINESS-01 - Grant County Public Utility District | — | — | 0 |
| AS401979US | SHELLCRAFT - ShellCraft | — | — | 0 |
| AS402007US | GEEKCLOUD - GeekCloud LLC | — | — | 0 |
| AS402032US | GHS-WI - Genesis Hosting Solutions, LLC | — | — | 0 |
| AS402046US | SERVERJUICE - ServerJuice, Inc. | — | — | 0 |
| AS402064US | WAS-MICROSOFT-PEERING-01 - Whippany Actuation Systems | — | — | 0 |
| AS402095US | GRACEWOOD INTERIORS LLC - GraceWood | — | — | 0 |
| AS402189US | 46454 - WCS | — | — | 0 |
| AS402264US | VENTED - Vented LLC | — | — | 0 |