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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 |
| CISCO-EXT - CISCO SYSTEMS, INC. |
| — |
| — |
| 0 |
| AS2056US | AOL-AS - Yahoo Holdings Inc. | — | — | 0 |
| AS2166US | HPINC - HP Inc. | — | — | 0 |
| AS2573US | QED-SYS - QED Systems, Inc. | — | — | 0 |
| AS2581US | GAO - U.S. Government Accountability Office | — | — | 0 |
| AS2622US | DNIC-AS-02622 - United States Department of Defense (DoD) | — | — | 0 |
| AS2623US | DNIC-AS-02623 - United States Department of Defense (DoD) | — | — | 0 |
| AS2684US | NET-ASSEMBLY-CA-GOV - California ASSEMBLY | — | — | 0 |
| AS2730US | Q7-LABS - Q7 Labs, LLC | — | — | 0 |
| AS2767US | ZAYO-CAN-2767 - Zayo Bandwidth | — | — | 0 |
| AS2899US | SPRO-NET - ARK Data Centers LLC | — | — | 0 |
| AS2951US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2968US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3010US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3019US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3038US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3051US | RICE-AS3051 - Rice University | — | — | 0 |
| AS3078US | CITI12 - Citigroup Inc. | — | — | 0 |
| AS3115US | DSMNET - Infotex of Iowa | — | — | 0 |
| AS3117US | KUPJONES-KREATIONS - Texas Dept. of Mental Health & Mental Retardation | — | — | 0 |
| AS3120US | MAGIC-INTRNL - General Magic, Inc. | — | — | 0 |
| AS3144US | HEPTA-SKY - HeptaSky LLC | — | — | 0 |
| AS3358US | UCIA-AS - Central Intelligence Agency | — | — | 0 |
| AS3469US | DNIC-AS-03469 - United States Department of Defense (DoD) | — | — | 0 |
| AS3494US | INS-COM - INTERNATIONAL NETWORK SERVICES | — | — | 0 |
| AS3520US | DSI-WR - RTX BBN Technologies, Inc. | — | — | 0 |
| AS3536US | DNIC-AS-03536 - United States Department of Defense (DoD) | — | — | 0 |
| AS3537US | DNIC-AS-03537 - United States Department of Defense (DoD) | — | — | 0 |
| AS3553US | COVANET - Commonwealth of Virginia | — | — | 0 |
| AS3560US | GDSAS - Technetix, Inc. | — | — | 0 |
| AS3566US | JRIVER-LINK - JRiver, Inc. | — | — | 0 |
| AS3579US | DATABANK - Databank, Inc. | — | — | 0 |
| AS3604US | CPBX - Linder Computer Enterprises | — | — | 0 |
| AS3610US | MHV-NET - Computer Solutions by Hawkinson | — | — | 0 |
| AS3649US | COGENT-3649 - Cogent Communications, LLC | — | — | 0 |
| AS3655US | GE-IPS - General Electric Company | — | — | 0 |
| AS3683US | AMERICAN-NET - American Network | — | — | 0 |
| AS3706US | DIGEX-AS2 - Digital Express Group, Inc. | — | — | 0 |
| AS3710US | REALM-AS - Realm Corporation | — | — | 0 |
| AS3759US | CALTEX-AS - Caltex | — | — | 0 |
| AS3832US | CINE-NET - Cinenet Communications | — | — | 0 |
| AS3859US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3887US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3941US | NTTA-3936 - NTT America, Inc. | — | — | 0 |
| AS3945US | NTTA-3945 - NTT America, Inc. | — | — | 0 |
| AS3983US | UTELFLA - Sprint/United Telephone-Florida | — | — | 0 |
| AS4014US | WIS - B3 Corporation | — | — | 0 |