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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 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 | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| — |
| — |
| 0 |
| AS3960US | AASAMERITECH - Ameritech Advertising Services | — | — | 0 |
| AS3979US | UTELFLA - Sprint/United Telephone-Florida | — | — | 0 |
| AS3986US | UTELFLA - Sprint/United Telephone-Florida | — | — | 0 |
| AS4047US | CIRS-AS - Community Information & Referral | — | — | 0 |
| AS4098US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4107US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4109US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4151US | USDA-1 - USDA | — | — | 0 |
| AS4173US | WATER - Water Wheel Systems | — | — | 0 |
| AS4176US | PGH-NET - Pittsburgh OnLine, Inc. | — | — | 0 |
| AS4203US | TGF-TIS - Together Foundation | — | — | 0 |
| AS4225US | NAV-AS - Navigator Communications | — | — | 0 |
| AS4260US | DCCI-AS - DC Communications, Inc. | — | — | 0 |
| AS4290US | CENTURYLINK-TSDS-NCGNVL - CenturyLink Communications, LLC | — | — | 0 |
| AS4338US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4372US | NET-LM - Luce McQuillin Corporation | — | — | 0 |
| AS4380US | DNIC-AS-04380 - Headquarters, USAISC | — | — | 0 |
| AS4438US | NEPTUNE - Neptune Travel Industry Network | — | — | 0 |
| AS4453US | TDS-TELECOM - TDS TELECOM | — | — | 0 |
| AS4467US | EASYLINK3 - AT&T Enterprises, LLC | — | — | 0 |
| AS4478US | PNET-STL - P-Net, Inc. | — | — | 0 |
| AS4481US | CMS-AS2 - Air Force Systems Networking | — | — | 0 |
| AS4506US | SEW-AS - SEW, Inc. | — | — | 0 |
| AS4532US | ARCHTOP-FIBER-WVTC01 - Archtop Fiber | — | — | 0 |
| AS4534US | IXA-ASN - Interconnected Associates (IXA) Inc. | — | — | 0 |
| AS4558US | CL-260-4558 - CyrusOne LLC | — | — | 0 |
| AS4572US | JAXINTER - Jacksonville Internet Service | — | — | 0 |
| AS4582US | REALLINK - RealLink, Inc. | — | — | 0 |
| AS4599US | MINNNET-NET - MinnNet Coummunications, Inc. | — | — | 0 |
| AS4602US | DNIC-AS-04602 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS4904US | COATUE - Coatue Management | — | — | 0 |
| AS4915US | TRANE-UPG - The TRANE Co.UPG | — | — | 0 |
| AS4930US | DMG1 - Digital Management Group | — | — | 0 |
| AS4955US | NDL - Network Datalink, Inc. | — | — | 0 |
| AS4959US | CORPCOMM - Corporate Communications, Inc. | — | — | 0 |
| AS4975US | LASER-NET-BLOCK - Computer Tech Services, Inc. | — | — | 0 |
| AS4978US | GDI-NET-AS - Global Datalink, Inc. | — | — | 0 |
| AS5003US | GIGAN-2 - Insync Internet Services, Inc. | — | — | 0 |
| AS5007US | COMPUTOPIA - Computopia | — | — | 0 |
| AS5021US | PACAF-GCCS - Air Force Systems Networking | — | — | 0 |
| AS5028US | GATEWAYNORTH - Evergreen Technologies Corporation | — | — | 0 |
| AS5076US | SYNOPTEK - Synoptek, LLC | — | — | 0 |
| AS5083US | DRAKE-NET - Dnet Internet Services | — | — | 0 |
| AS5086US | IDNET - Innovative Data Services | — | — | 0 |
| AS5095US | BOOKLINK-AS - Booklink/Navisoft | — | — | 0 |
| AS5129US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |