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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) | 227.7M | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,268 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,721 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,955 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,300 |
| — |
| — |
| 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 |
| AS4022US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS4025US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS4077US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4085US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4106US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4121US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4160US | SPECTRA - Internet Direct Marketing | — | — | 0 |
| AS4166US | NAVI-AS-4166 - Navisite Opco LLC | — | — | 0 |
| AS4170US | DNIC-AS-04170 - United States Department of Defense (DoD) | — | — | 0 |