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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 | 21,157 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,247 |
| 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 | 400 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,712 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,959 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,302 |
| — |
| — |
| 0 |
| AS452US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS454US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS455US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS489US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS491US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS514US | DSADC-MECH - United States Department of Defense (DoD) | — | — | 0 |
| AS515US | DNIC-AS-00515 - United States Department of Defense (DoD) | — | — | 0 |
| AS525US | CTNOSC-525-AS - Headquarters, USAISC | — | — | 0 |
| AS531US | DNIC-AS-00531 - Headquarters, USAISC | — | — | 0 |
| AS704US | UUNET - Verizon Business | — | — | 0 |
| AS735US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS742US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS748US | DNIC-AS-00748 - United States Department of Defense (DoD) | — | — | 0 |
| AS765US | DNIC-AS-00765 - United States Department of Defense (DoD) | — | — | 0 |
| AS799US | DNIC-AS-00799 - Headquarters, USAISC | — | — | 0 |
| AS847US | SANTACLARA-IXP - Richmond-IX Corporation | — | — | 0 |
| AS849US | MIAMI-GARDENS-IXP - Richmond-IX Corporation | — | — | 0 |
| AS1032US | NETSPEEDMS - NETSPEEDMS | — | — | 0 |
| AS1209US | DNIC-AS-01209 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1223US | AINET-AS1223 - American Information Network | — | — | 0 |
| AS1259US | WRAIR-ASN - Headquarters, USAISC | — | — | 0 |
| AS1276US | DSI-WR-18 - Advanced Technology Services | — | — | 0 |
| AS1331US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1335US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1344US | DNIC-AS-01344 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1345US | DNIC-AS-01345 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1396US | T2-JC-AN - Charles Schwab & Co., Inc. | — | — | 0 |
| AS1402US | T2-CT-PFE - Charles Schwab & Co., Inc. | — | — | 0 |
| AS1404US | VERTICALRESPONSE - VerticalResponse, Inc. | — | — | 0 |
| AS1452US | DNIC-ASBLK-01451-01456 - Headquarters, USAISC | — | — | 0 |
| AS1482US | DNIC-AS-01482 - Headquarters, USAISC | — | — | 0 |
| AS1485US | DNIC-AS-01485 - Headquarters, USAISC | — | — | 0 |
| AS1494US | DNIC-ASBLK-01494-01495 - Headquarters, USAISC | — | — | 0 |
| AS1506US | WOOD-AS - Headquarters, USAISC | — | — | 0 |
| AS1527US | DNIC-AS-01527 - Headquarters, USAISC | — | — | 0 |
| AS1534US | DNIC-ASBLK-01534-01546 - Headquarters, USAISC | — | — | 0 |
| AS1549US | DNIC-ASBLK-01548-01549 - Headquarters, USAISC | — | — | 0 |
| AS1573US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1626US | DNIC-AS-1626 - Headquarters, USAISC | — | — | 0 |
| AS1684US | ANS-1684-AS - Verizon Business | — | — | 0 |
| AS1697US | NETENG-MONITORING - Verizon Business | — | — | 0 |
| AS1735US | FISHER-AS - Fisher Controls Int. Inc. | — | — | 0 |
| AS1745US | CRT-AS - Chicago Reseach and Trading | — | — | 0 |
| AS1801US | COGENT-1801 - Cogent Communications, LLC | — | — | 0 |
| AS2006US | INFONET2 - INFONET Services Corporation | — | — | 0 |
| AS2378US | DOI-BIA - DOI - BIA | — | — | 0 |