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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 | 24,645 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,307 |
| 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.
32,220 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 | 3,890 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,364 |
| — |
| — |
| 0 |
| AS19235US | HOSTING-COM - Ntirety, Inc. | — | — | 0 |
| AS19459US | SMSU-12-19459 - Siemens Medical Solutions USA, Inc. | — | — | 0 |
| AS19641US | TIHC-DC4 - TI Intermediate Holdings, LLC | — | — | 0 |
| AS19683US | FORENDATA - Foren Data, Inc. | — | — | 0 |
| AS19744US | EDUCATION-DEVELOPMENT-CENTER - Education Development Center Inc. | — | — | 0 |
| AS19828US | MARICOPA - Orbitel Communications, LLC | — | — | 0 |
| AS19897US | IQNT-BROAD-6-19897 - Inteliquent, inc. | — | — | 0 |
| AS19947US | VINS-AS-2 - Flexential Colorado Corp. | — | — | 0 |
| AS20000US | FULCRM-00 - Fulcrum Analytics, Inc | — | — | 0 |
| AS20039US | BAKERJK - Baker College | — | — | 0 |
| AS20153US | ARGUSHEALTH - ARGUS HEALTH SYSTEMS | — | — | 0 |
| AS20155US | OCO-1 - ORANGE COUNTY ONLINE | — | — | 0 |
| AS20172US | VGRS-AC27 - VeriSign Global Registry Services | — | — | 0 |
| AS20240US | VENTURAFOODS - VENTURA FOODS, LLC | — | — | 0 |
| AS20287US | OFINY - Invesco Group Services, Inc. | — | — | 0 |
| AS20301US | AS20301 - National Aeronautics and Space Administration | — | — | 0 |
| AS20403US | DSL-ONLY-PDX - DSL-Only, Inc | — | — | 0 |
| AS20415US | COUNCILROCKSD-PA - Council Rock School District | — | — | 0 |
| AS20433US | CENGAGE-MABOS - Cengage Learning, Inc. | — | — | 0 |
| AS21636US | PROMETRIC - Prometric, Inc. | — | — | 0 |
| AS21657US | FRTCC-LOUISANET - Foothills Rural Telephone Cooperative Corporation, Inc. | — | — | 0 |
| AS21776US | BLOSSOMTEL-AS - CHICKASAW TELEPHONE | — | — | 0 |
| AS21988US | HENDRICK-AUTO-GROUP - Hendrick Automotive Group | — | — | 0 |
| AS21991US | BASED-NETWORKING - BNS Services LLC | — | — | 0 |
| AS22053US | ARENAONE - Arena One, LLC | — | — | 0 |
| AS22090US | VENYU-2 - REV | — | — | 0 |
| AS22144US | CHAPMAN - Chapman and Cutler | — | — | 0 |
| AS22201US | PERFORCE-ASN - Perforce Software, Inc. | — | — | 0 |
| AS22321US | PLUMCHOICE-DC1 - PlumChoice | — | — | 0 |
| AS22329US | BAYMOUNTAIN - Flexential Corp. | — | — | 0 |
| AS22526US | ITC-ASN - ITC Holdings Corp | — | — | 0 |
| AS22852US | PLESKLOGIN - PleskLogin Net | — | — | 0 |
| AS22859US | GOOGLE - Google LLC | — | — | 0 |
| AS22914US | BIGRIVER2 - Big River Telephone Company, LLC | — | — | 0 |
| AS22956US | AST - American Stock Transfer & Trust Co. | — | — | 0 |
| AS22967US | CIMATELECOM1 - Cima Telecom, Inc. | — | — | 0 |
| AS23178US | MMI-NET - MONEY MANAGEMENT INTERNATIONAL | — | — | 0 |
| AS23328US | EST-INC-ASN - EST, Inc. | — | — | 0 |
| AS23365US | IFBYPHONE - Invoca, Inc. | — | — | 0 |
| AS23440US | PEAK10CIN - Flexential Corp. | — | — | 0 |
| AS23449US | EXODO-ANYCAST-NET - Exodo LLC | — | — | 0 |
| AS23519US | NGISCORV - Alyrica Networks Inc. | — | — | 0 |
| AS25572US | ISC-MAD1 Internet Systems Consortium Inc. | — | — | 0 |
| AS25665US | EV-CLOUD - Veritas Technologies LLC | — | — | 0 |
| AS25721US | AS-CHICAGO - Morningstar, Inc. | — | — | 0 |
| AS25919US | CONST-89-25919 - ConstructConnect Inc. | — | — | 0 |