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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 |
| 1.3K |
| 256 |
| 6 |
| AS40042US | SUFFOLK-COUNTY-GOVERNMENT - Suffolk County Government | 1.3K | — | 4 |
| AS63217US | VISTEX - Vistex Inc. | 1.3K | — | 4 |
| AS46282US | AVIALL-SERVICES-INC - Boeing Distribution, Inc. | 1.3K | — | 5 |
| AS3847US | NYC-REGIONAL - ENV | 1.3K | — | 5 |
| AS40694US | TEKWAV - TekWav | 1.3K | — | 2 |
| AS22300US | FANDOM - Wikia, Inc. | 1.3K | — | 5 |
| AS62839US | FADV - First Advantage Corporation | 1.3K | — | 3 |
| AS19231US | NBCUNI - NBCUniversal | 1.3K | — | 5 |
| AS27281US | QUANTCAST - Quantcast Corporation | 1.3K | 7 | 12 |
| AS20091US | MARTINSVILLE-VA - City of Martinsville, VA | 1.3K | — | 5 |
| AS11296US | INDEPENDENT-HEALTH - Independent Health Association, Inc. | 1.3K | — | 2 |
| AS54925US | FNSBSD - Fairbanks North Star Borough School District | 1.3K | — | 2 |
| AS33593US | HARRIS-BANK - Harris Trust & Savings Bank | 1.3K | — | 5 |
| AS32161US | CCBILL-ASN2 - CCBill | 1.3K | — | 3 |
| AS394830US | MASSIVE-MESH - Massivemesh LLC | 1.3K | 4.1K | 6 |
| AS62598US | REI-TEL - Re-invent Telecom, LLC | 1.3K | — | 5 |
| AS30104US | ABCC-30104 - GTel Networks inc. | 1.3K | — | 4 |
| AS21726US | RGTS-JFK - Convergeone Unified Technology Solutions, Inc. | 1.3K | — | 5 |
| AS55009US | ROUTER12 - Router12 Networks LLC | 1.3K | — | 4 |
| AS394887US | MONETRA-AS - Monetra Technologies LLC | 1.3K | 4 | 9 |
| AS31902US | OTS - Open Technology Solutions, LLC | 1.3K | — | 5 |
| AS32256US | CYBERLINKASP - CYBERLINK USA | 1.3K | — | 5 |
| AS11713US | GBGDC-IP1 - Granite Block Global Data Center, Inc | 1.3K | — | 5 |
| AS14054US | PURPLENET - Purple Computer North America, Inc. | 1.3K | 1 | 6 |
| AS54286US | AS-TAIPEI-ARIN - TAIPEI101 NETWORK LLC | 1.3K | 21 | 11 |
| AS19577US | CASTRO-TELECOM - CASTRO TELECOM LLC | 1.3K | — | 2 |
| AS1225US | NTTA-1225 - NTT America, Inc. | 1.3K | 1 | 3 |
| AS393670US | SFC-GA - Southern Fibernet Corporation | 1.3K | 65.5K | 4 |
| AS22414US | CRAIGS-NET-1 - Craigslist, Inc. | 1.3K | 17 | 4 |
| AS33296US | PIEDMONT-BROADBAND - Piedmont Broadband Corporation | 1.3K | 4.1K | 6 |
| AS53467US | SRH - Skagit Regional Health | 1.3K | — | 3 |
| AS36107US | FITCH-NETWORK-NY - FITCH INC. | 1.3K | — | 2 |
| AS399145US | SUMO-SC - Sumo Capital LLC | 1.3K | — | 5 |
| AS11059US | MIFFLIN-COUNTY-WIRELESS - MIFFLIN COUNTY WIRELESS LLC | 1.3K | — | 5 |
| AS11940US | DIRECTSCOM - Direct Supply, Inc. | 1.3K | — | 4 |
| AS399520US | LINDENWOOD-UNIVERSITY - Lindenwood University | 1.3K | — | 4 |
| AS1046US | FIBERIFI - Fiberifi | 1.3K | — | 2 |
| AS30664US | ELEMENT - Element Vehicle Management Services | 1.3K | — | 5 |
| AS398728US | TERAVITY-AS - Teravity Networks | 1.3K | — | 2 |
| AS22971US | SVHHSTOSF-NET - ST. VINCENT HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER OF ST. FRANCIS | 1.3K | — | 3 |
| AS7915US | DAYTONA-STATE-COLLEGE - Daytona State College Inc | 1.3K | — | 5 |
| AS54819US | NETDIVERSE-A - NetDiverse, LLC | 1.3K | — | 5 |
| AS36446US | OCOSA - OCOSA Communication, LLC | 1.3K | 4.1K | 5 |
| AS27395US | OSONET - OSOLABS LLC | 1.3K | — | 2 |
| AS399586US | OKALOOSA-COUNTY-FL - The County of Okaloosa | 1.3K | — | 5 |
| AS54572US | AS-ASN-2 - Nasdaq, Inc. | 1.3K | — | 3 |