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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS22762US | OFIDEN - Invesco Group Services, Inc. | — | — | 0 |
| AS10588US | ICSNET - Intelligent Computer Solutions, Inc | — | — | 0 |
| AS10526US | DRCORP - Direct Report Corporation | — | — | 0 |
| AS10534US | GOAMERICACOMM - GoAmerica Communications Corp | — | — | 0 |
| AS10597US | CRUSOE-AS - Crusoe Communications, Inc. | — | — | 0 |
| AS20475US | AS20475 - Global Capacity, LLC | — | — | 0 |
| AS20104US | GOTO-OPS-AS - Goto Group, Inc. | — | — | 0 |
| AS10342US | INETINFOSVCS-AS - Internet Information Services, Inc. | — | — | 0 |
| AS19634US | FILTERED-NETWORKS - Filtered Networks | — | — | 0 |
| AS19604US | IBM-RALEIGH-CL - IBM | — | — | 0 |
| AS19487US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS19492US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS10240US | MOTLEYFOOL - The Motley Fool, LLC. | — | — | 0 |
| AS22723US | UN - United Nations | — | — | 0 |
| AS20476US | RESERVED-IPADMIN - Level 3 Parent, LLC | — | — | 0 |
| AS19907US | NEUSTAR-AS6 - NeuStar, Inc. | — | — | 0 |
| AS21562US | IQUEST-LB - LightBound, LLC | — | — | 0 |
| AS21524US | WSP - Parsons Brinckerhoff Inc. | — | — | 0 |
| AS17062US | HPINC - HP Inc. | — | — | 0 |
| AS22194US | SWITCH-COMMUNICATIONS - SWITCH, LTD | — | — | 0 |
| AS16759US | SWA-MKT-INET - Southwest Airlines Co. | — | — | 0 |
| AS16702US | AKAMAI-AS - Akamai Technologies, Inc. | — | — | 0 |
| AS16484US | BROADVIEWNET-AS-16484 - Windstream Communications LLC | — | — | 0 |
| AS14181US | UBETWIRELESS - UBET Wireless | — | — | 0 |
| AS36512US | ABCO - Goodman Manufacturing Company, L.P. | — | — | 0 |
| AS33750US | FASTSIGNS-INTL - FASTSIGNS International, Inc. | — | — | 0 |
| AS12203US | POP1 - Webster Bank, National Association | — | — | 0 |
| AS12015US | WOW-INTERNET - WideOpenWest Finance LLC | — | — | 0 |
| AS11606US | ARCHTOP-FIBER-WVTC02 - Archtop Fiber | — | — | 0 |
| AS36412US | DREXEL-ASN2 - Drexel University | — | — | 0 |
| AS11849US | CAMPLINK-3 - Camplink | — | — | 0 |
| AS14883US | C3-TRACI - C3 | — | — | 0 |
| AS14724US | LOCAL2U - Local2U (West Virginia) LLC | — | — | 0 |
| AS14741US | BIZLAND-SD - Newfold Digital, Inc. | — | — | 0 |
| AS14260US | USROYALINS - Royal&Sunalliance Insurance | — | — | 0 |
| AS18963US | MIDLAND-ISD-TX-01 - MIDLAND ISD | — | — | 0 |
| AS13689US | BLUELINX-CORP - BlueLinx Corporation | — | — | 0 |
| AS14392US | COF-EQX-EAST-O365 - Capital One Financial Corporation | — | — | 0 |
| AS8004US | DTG - Diversified Technologies Group | — | — | 0 |
| AS7907US | NETWORD-CORP - Networldtron Corp | — | — | 0 |
| AS7823US | DUPONT-ASN - DuPont | — | — | 0 |
| AS7884US | ASN-NC-FUCAPMARK - First Union Capital Markets Group | — | — | 0 |
| AS7343US | VISA-INTERACTIVE - Visa Interactive | — | — | 0 |
| AS7327US | 7THLEVEL - 7th Level, Inc. | — | — | 0 |
| AS10890US | PHILADELPHIA-NEWSPAPERS - Philadelphia Newspapers Incorporated | — | — | 0 |
| AS11225US | CENTURYLINK-QC-MOE-OMAHA-GRAND-ISLAND - CenturyLink Communications, LLC | — | — | 0 |