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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 |
| AS22936US | ESCHELON-180 - Allstream Business US, LLC | — | — | 0 |
| AS22979US | DUPACO-COM-BGP - DUPACO COMMUNITY CREDIT UNION | — | — | 0 |
| AS22983US | FISERV-INC - Fiserv Solutions, LLC | — | — | 0 |
| AS22993US | ADVANTAGE - Advantage Sales & Marketing LLC | — | — | 0 |
| AS23048US | PROGRESS-SOFTWARE-CORP - Progress Software | — | — | 0 |
| AS23092US | ISUNET - Internet Services United Networks | — | — | 0 |
| AS23240US | LCA-EXTRANET - LifeCare Assurance Company | — | — | 0 |
| AS23269US | SVSN-RKE-VA-01 - Sitevision, Inc. | — | — | 0 |
| AS23336US | SOLIDSPACE-ASN - SolidSpace LLC | — | — | 0 |
| AS23499US | ACM-ASN - Aurelius Capital Management, LP | — | — | 0 |
| AS23516US | CIRRUS-SEVEN-INC - Cirrus Seven, Inc. | — | — | 0 |
| AS25723US | AOLTW-WMG-DE - Yahoo Holdings Inc. | — | — | 0 |
| AS25752US | METHEAN-AS25752 - Methean Professional, LLC | — | — | 0 |
| AS25780US | HUGESERVER-NETWORKS - HugeServer Networks, LLC | — | — | 0 |
| AS25784US | CSC-IGN-AMER-HOU-AS25784 - DXC US Latin America Corporation | — | — | 0 |
| AS25890US | AS-WAN2LAN - WAN2LAN INC. | — | — | 0 |
| AS25926US | HOSTUS-SOLUTIONS-LLC - HostUS | — | — | 0 |
| AS25945US | CBSNSOC-LR - Leidos CBSNSOC (commercial Business Services Network Security Operations Center) | — | — | 0 |
| AS25959US | TRUIST-ASN-25959 - Truist Financial Corporation | — | — | 0 |
| AS26089US | KILGORE-COLLEGE - Kilgore College | — | — | 0 |
| AS26139US | ECR - ECR Internet Services, Inc. | — | — | 0 |
| AS26163US | DATAGRAM - Internap Holding LLC | — | — | 0 |
| AS26184US | ASA-HQAS - American Society of Anesthesiologists | — | — | 0 |
| AS26248US | MESSAGELABS - Avago Technologies U.S. Inc. | — | — | 0 |
| AS26368US | CHARTER-26368-NA - Charter Communications LLC | — | — | 0 |
| AS26518US | RTINET - VARCOMM BROADBAND, INC. | — | — | 0 |
| AS26521US | WSFS-2-AS - WSFS Bank | — | — | 0 |
| AS26540US | TNA-ASIEL - Tradition North America Inc. | — | — | 0 |
| AS26563US | MASSIX-MLPE-AS - TowardEX Technologies International, Inc. | — | — | 0 |
| AS26877US | TPL-AS - Troutman Pepper Locke LLP | — | — | 0 |
| AS27036US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27051US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27054US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27071US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27072US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27109US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27133US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27145US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27159US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27204US | AMTA-2-27204 - The Albany Mutual Telephone Association | — | — | 0 |
| AS27249US | SENECA-INSURANCE-NYC - Seneca Insurance Co. Inc, | — | — | 0 |
| AS27252US | WBD-AS27252 - Warner Bros. Advanced Digital Services | — | — | 0 |
| AS27302US | APPETIZE-IO-ASN - Appetize.io LLC | — | — | 0 |
| AS27319US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS27359US | UNCOMMON-NET - Uncommon Technology Incorporated | — | — | 0 |
| AS27423US | CAITHNESS - Caithness Energy LLC. | — | — | 0 |