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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,162 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,670 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,950 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,372 |
| COMMUNITYAMERICA - CommunityAmerica Credit Union |
| 256 |
| — |
| 1 |
| AS398345US | NETGRICHGLOBAL - NEW AGE NETWORKS, LLC | 256 | — | 1 |
| AS394704US | GC-CA4 - GOR CORPORATION | 256 | — | 1 |
| AS402239US | TECHLOQ-US-02 - Techloq Limited | 256 | 256 | 2 |
| AS393272US | PORT-MADISON-ENTERPRISES - Port Madison Enterprises | 256 | — | 1 |
| AS19866US | NPGCO-STJO - News-Press & Gazette Company | 256 | — | 1 |
| AS400417US | CIPC-CN-01 - Central Iowa Power Cooperative | 256 | — | 1 |
| AS32648US | MNAT - Morris, Nichols, Arsht and Tunnel | 256 | — | 1 |
| AS401968US | APTAR-GLO-01 - AptarGroup Inc. | 256 | — | 1 |
| AS396898US | BMG-ASN - Capital City Home Loans | 256 | — | 1 |
| AS14290US | ASD-ANSWERING-SERVICE-FOR-DIRECTORS - Answering Service for Directors | 256 | — | 1 |
| AS397291US | LOGICMONITOR-CORPORATE - LogicMonitor, Inc. | 256 | — | 1 |
| AS401257US | LP-SUBNET--69 - LIBOR | 256 | — | 1 |
| AS15329US | DENO - Deno | 256 | 1 | 2 |
| AS6260US | SIX2SIXO-NETWORKS - MOD Mission Critical, LLC | 256 | — | 1 |
| AS4980US | NO - Whole Sale | 256 | — | 1 |
| AS216102US | XeroGroup_LLC XeroGroup LLC | 256 | — | 1 |
| AS393325US | NMS-BGP - New Meadowlands Stadium Co., LLC | 256 | — | 1 |
| AS33032US | AMI - American Megatrends, Inc. | 256 | — | 1 |
| AS400649US | APOG-UTD - Apogee Telecom Inc. | 256 | — | 1 |
| AS395016US | WAKE-WIRELESS - WAKE WIRELESS | 256 | 65.5K | 2 |
| AS30573US | OLDSECONDBANCORP - Old Second Bancorp | 256 | — | 1 |
| AS395311US | MIDWAYUSA01 - MidwayUSA | 256 | — | 1 |
| AS399366US | KIRKLAND-ELLIS-DC - Kirkland & Ellis LLP | 256 | — | 1 |
| AS399691US | MAJCS-CCOM - Washington County Consolidated Communications Agency | 256 | — | 1 |
| AS397910US | TSC - AEG | 256 | — | 1 |
| AS36774US | AS-36774 - Intuit Inc. | 256 | — | 1 |
| AS402385US | SPICER-NETWORKS - Spicer | 256 | 256 | 2 |
| AS40228US | LLL-NBRK - Levin & Levy, LLP | 256 | — | 1 |
| AS46802US | GLADIATOR-TECH - Gladiator Technologies, LLC | 256 | — | 1 |
| AS402183US | BEAZER-250 - BEAZER GENERAL SERVICES, INC. | 256 | — | 1 |
| AS395835US | AJA-ASN - AJ Antunes & Co | 256 | — | 1 |
| AS62483US | TEREX-AWP - Terex USA, LLC | 256 | — | 1 |
| AS63198US | JCSO-ASN - Jefferson County Sheriff's Office | 256 | — | 1 |
| AS397434US | CSBS-HQ - Conference of State Bank Supervisors, Inc. | 256 | — | 1 |
| AS399262US | WESTGATE-DATA-CENTER - Westgate Computers Data Center, LLC | 256 | — | 1 |
| AS400420US | ELITEFIBER-CEN - Elite Systems, LLC | 256 | — | 1 |
| AS401721US | EVOLUTIONFIBER-US-TX - Evolution Fiber LLC | 256 | 64 | 2 |
| AS22007US | TJG-LCO - The Jay Group, Inc. | 256 | — | 1 |
| AS17142US | THERASOFTONLINE - Therasoft Inc | 256 | — | 1 |
| AS17297US | COC-TX-ASN-17297 - CITY OF CARROLLTON - TEXAS | 256 | — | 1 |
| AS26845US | CFN - Fleetcor Technologies Operating Company, LLC | 256 | — | 1 |
| AS14269US | LIFELINE - Lifeline Computer Solutions, Inc. | 256 | — | 1 |
| AS1053US | BEARCOM-ALWAYS-ON - BearCom Operating, LLC | 256 | — | 1 |
| AS13596US | RYMAX-CORP - Rymax Corp | 256 | — | 1 |
| AS33100US | DHR-INTERNATIONAL - DHR INTERNATIONAL | 256 | — | 1 |
| AS394942US | COF-CA-AS - City of Fontana | 256 | — | 1 |