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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,285 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,310 |
| 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.
32,244 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,356 |
| 1.3K |
| — |
| 2 |
| AS8104US | PENTA-DC1 - Pentagon Federal Credit Union | 1.3K | — | 4 |
| AS16550US | GOOGLE-PRIVATE-CLOUD - Google LLC | 1.3K | — | 5 |
| AS7720US | SKYWOLF-AS-AP - Skywolf Technology LLC | 1.3K | 5 | 9 |
| AS14192US | CARTHA-ASN - Carthage College | 1.3K | — | 4 |
| AS12153US | HBI-ASN1 - HBI Branded Apparel Enterprises, LLC | 1.3K | — | 5 |
| AS399334US | SKYSILK-02 - Skysilk | 1.3K | 1 | 4 |
| AS62698US | SUPPLYFRAME - Supply Frame, Inc. | 1.3K | — | 4 |
| AS393674US | DEACONESSHOSPITAL - DEACONESS HOSPITAL, Inc. | 1.3K | — | 5 |
| AS18527US | HAGC-ASN - UC Health, LLC | 1.3K | — | 5 |
| AS31892US | FLP-MSA - Forever Living Products | 1.3K | — | 4 |
| AS36495US | HEADEND - Esparto Broadband Inc | 1.3K | — | 4 |
| AS27343US | MONSANTO-INET - Monsanto | 1.3K | — | 3 |
| AS32544US | FOTOKEM-INDUSTRIES - FotoKem Industries, Inc | 1.3K | — | 2 |
| AS21718US | NW-NATURAL-GAS - Northwest Natural Gas | 1.3K | — | 5 |
| AS401489US | XGLSOLUTIONS - Xglsolutions LLC | 1.3K | 256 | 6 |
| AS399640US | DIGITAL-BLVD-01 - Digital Boulevard | 1.3K | — | 2 |
| AS23046US | INFINITE-CAMPUS-GA - Infinite Campus, Incorporated | 1.3K | — | 2 |
| AS21998US | SETA - SETA | 1.3K | — | 2 |
| AS216093US | SERVERGUARD Root Localhost LLC | 1.3K | 4 | 9 |
| AS18643US | SMART-CITY-TACC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.3K | — | 2 |
| AS16493US | ABERCROMBIE-FITCH - Abercrombie & Fitch | 1.3K | — | 5 |
| AS54531US | LPCH-PA - LUCILE SALTER PACKARD CHILDREN'S HOSPITAL AT STANFORD | 1.3K | — | 2 |
| AS14469US | SWISHMAIL - Swishmail | 1.3K | 4.1K | 3 |
| AS402374US | DELCAMBRE-CO - Delcambre | 1.3K | — | 5 |
| AS400915US | PURENODAL-01 - Pure Nodal, Inc. | 1.3K | — | 5 |
| AS13627US | AMBYRE - Ambyre LLC | 1.3K | 1K | 10 |
| AS396908US | LAURENS-TECHNOLOGIES-INTERNET-SERVICES - Laurens Technologies Internet Services | 1.3K | 440 | 129 |
| AS23428US | SERVERFORGE - ServerForge LLC | 1.3K | 324 | 14 |
| AS36162US | CONCERGENT-LLC - CONCERGENT, LLC | 1.3K | — | 2 |
| AS17289US | USG-PROD-WEST01 - ULTIMATE SOFTWARE GROUP | 1.3K | — | 2 |
| AS14850US | PACE-SUBURBAN-BUS - PACE, the suburban bus division of the Region Transportation Authority | 1.3K | — | 2 |
| AS215225US | WebhostingFSI Webhosting FSI LLC | 1.3K | — | 5 |
| AS46788US | IMSD-AS1 - Milwaukee County Government | 1.3K | — | 2 |
| AS35962US | MSA-ASN - Management Science Associates, Inc. | 1.3K | 65.5K | 6 |
| AS397753US | EAST-CREEK-NETWORKS-FL-001 - East Creek Networks | 1.3K | — | 2 |
| AS17366US | ARINCASN - ARINC INCORPORATED | 1.3K | — | 5 |
| AS20111US | LENOVO-NET - Lenovo (United States) Inc. | 1.3K | — | 4 |
| AS19864US | HFASERVICES - HFA Specialty Assets LLC | 1.3K | — | 3 |
| AS6475US | KESMAI - Kesmai Corporation | 1.3K | — | 5 |
| AS40860US | WBIA-1-40860 - Word and Brown Insurance Administrators, Inc | 1.3K | — | 2 |
| AS142561US | XTDEF-LIMITED-AS-AP - XTDEF Limited | 1.3K | 8 | 13 |
| AS395988US | ECFMG - ECFMG | 1.3K | — | 2 |
| AS40080US | AS-IRLTOOLKIT - IRLToolkit Inc. | 1.3K | 3 | 8 |
| AS22624US | FREMONTBANK - Fremont Bank | 1.3K | — | 5 |
| AS399185US | AMS-GA-ALF - HEWLETT PACKARD ENTERPRISE COMPANY | 1.3K | — | 2 |
| AS32205US | 45SHOP - ECHO45 ADVISORS LLC | 1.3K | — | 5 |