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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| — |
| — |
| 0 |
| AS2983US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3012US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3028US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3044US | RICE-AS3044 - Rice University | — | — | 0 |
| AS3072US | AINET-AS3072 - American Information Network | — | — | 0 |
| AS3113US | DOC-ESA-ASN - U.S. Department of Commerce | — | — | 0 |
| AS3124US | MAGIC-INTRNL - General Magic, Inc. | — | — | 0 |
| AS3126US | MAGIC-INTRNL - General Magic, Inc. | — | — | 0 |
| AS3387US | USIA - U.S. Department of State | — | — | 0 |
| AS3403US | TIAC - The Internet Access Co. | — | — | 0 |
| AS3407US | INTERPATH-NC - Interpath | — | — | 0 |
| AS3418US | DNIC-AS-03418 - United States Department of Defense (DoD) | — | — | 0 |
| AS3490US | CDINET - Communications Development, Inc. | — | — | 0 |
| AS3514US | AUREON-3514 - Aureon Network Services | — | — | 0 |
| AS3564US | PENTELEDATA-1 - PenTeleData Inc. | — | — | 0 |
| AS3575US | GIGABITNOW - GigabitNow | — | — | 0 |
| AS3607US | HPINC - HP Inc. | — | — | 0 |
| AS3615US | DELL-BLK - Dell, Inc. | — | — | 0 |
| AS3643US | COGENT-3643 - Cogent Communications, LLC | — | — | 0 |
| AS3667US | DNIC-ASBLK-03664-03667 - United States Department of Defense (DoD) | — | — | 0 |
| AS3696US | DNIC-AS-03696 - United States Department of Defense (DoD) | — | — | 0 |
| AS3716US | DATAWAVE - Datawave Network Services | — | — | 0 |
| AS3740US | CHICAGO-REN - The University of Chicago | — | — | 0 |
| AS3792US | CIS2 - CIS Corporation | — | — | 0 |
| AS3796US | OUTERNET - OuterNet Connection Strategies, Inc. | — | — | 0 |
| AS3803US | RCN-AS1 - RCN | — | — | 0 |
| AS3818US | STEP2-AS - Step2 Software Inc. | — | — | 0 |
| AS3821US | ABLECOM - Able Technical Services | — | — | 0 |
| AS3888US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3892US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3913US | UMSM - University of Miami | — | — | 0 |
| AS3937US | NTTA-3936 - NTT America, Inc. | — | — | 0 |
| AS4001US | COGENT-4000 - Cogent Communications, LLC | — | — | 0 |
| AS4009US | INET - Internetworsks, Inc. | — | — | 0 |
| AS4011US | DNIC-AS-04011 - Headquarters, USAISC | — | — | 0 |
| AS4012US | DCM - DCM | — | — | 0 |
| AS4033US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS4044US | AKSI-NET-AS - Acquired Knowledge Systems, Inc. | — | — | 0 |
| AS4075US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4080US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4100US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4126US | SPTEL2 - SP Tel | — | — | 0 |
| AS4137US | DIRECTNET - Burningate, Inc. | — | — | 0 |
| AS4157US | USDA-1 - USDA | — | — | 0 |
| AS4165US | DNIC-AS-04165 - United States Department of Defense (DoD) | — | — | 0 |
| AS4187US | INFOBAHN - infobahn | — | — | 0 |