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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| — |
| — |
| 0 |
| AS55174US | BPTECHSERVICES - Bay Pointe Tech Services, LLC | — | — | 0 |
| AS64US | MITRE-AS-2 - The MITRE Corporation | — | — | 0 |
| AS54263US | AS-ASN-4 - Nasdaq, Inc. | — | — | 0 |
| AS54255US | BS - Bitstine LLC | — | — | 0 |
| AS16644US | ZANG-01 - Zangmeister cancer Center | — | — | 0 |
| AS15004US | GTELCO - Gunnison Telephone Company | — | — | 0 |
| AS395867US | DSAC - Dassault Systemes Americas Corp. | — | — | 0 |
| AS14394US | KBCFP-NYC - KBC BANK N.V. | — | — | 0 |
| AS14392US | COF-EQX-EAST-O365 - Capital One Financial Corporation | — | — | 0 |
| AS14181US | UBETWIRELESS - UBET Wireless | — | — | 0 |
| AS14323US | AS14323 - Syniverse Technologies, LLC | — | — | 0 |
| AS17154US | ZAYO-CAN-17154 - Zayo Bandwidth | — | — | 0 |
| AS17062US | HPINC - HP Inc. | — | — | 0 |
| AS16948US | STRATUSWAVE - CityNet | — | — | 0 |
| AS18514US | MDCH-CRP-ASN - M.D.C. Holdings, Inc. | — | — | 0 |
| AS393679US | CITY-OF-WOOSTER - City of Wooster | — | — | 0 |
| AS16553US | EQUINIX-EC-MI - Equinix, Inc. | — | — | 0 |
| AS11420US | TRIBUNE-PUBLISHING-COMPANY - Tribune Publishing Company, LLC | — | — | 0 |
| AS11508US | AS-VULTR2 - The Constant Company, LLC | — | — | 0 |
| AS10940US | FONALITY - Sangoma US Inc. | — | — | 0 |
| AS10890US | PHILADELPHIA-NEWSPAPERS - Philadelphia Newspapers Incorporated | — | — | 0 |
| AS10699US | TELSOFT-AS - TelSoft Consultants, Inc. | — | — | 0 |
| AS16702US | AKAMAI-AS - Akamai Technologies, Inc. | — | — | 0 |
| AS13665US | VRIS-AS-BLOCK - Verizon Business | — | — | 0 |
| AS13639US | ING-AMERICAS-WHOLESALE - ING Financial Services, LLC | — | — | 0 |
| AS393343US | RW-SHANHS - Ranch WiFi LLC | — | — | 0 |
| AS394854US | TOST-ASN - Toast, Inc. | — | — | 0 |
| AS395154US | IM-ODIN - Ingram Micro Inc. | — | — | 0 |
| AS394674US | KAMINOT - Kaminot LLC | — | — | 0 |
| AS396579US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396572US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396134US | SOMOS-VA - Somos, Inc. | — | — | 0 |
| AS395150US | FCPS - Frederick County Public Schools | — | — | 0 |
| AS393648US | ACTON-SOFTWARE - Act-On Software | — | — | 0 |
| AS393527US | ICANON - ICANON Associates, Inc. | — | — | 0 |
| AS219328US | Versori Versori LLC | — | — | 0 |
| AS6260US | SIX2SIXO-NETWORKS - MOD Mission Critical, LLC | — | — | 0 |
| AS212149US | Hammynet Hammy Web Services LLC | — | — | 0 |
| AS211420US | kryptoslogic Kryptos Logic LLC | — | — | 0 |
| AS201994US | AMETEK-LDC AMETEK Inc. | — | — | 0 |
| AS394527US | ASN-BELL - Bell Bank | — | — | 0 |
| AS394156US | TSYS-EQUINIX-SV1 - Global Payments Inc. | — | — | 0 |
| AS394063US | AMHERST-H-WILDER-FOUNDATION - Amherst H. Wilder Foundation | — | — | 0 |
| AS393884US | VL-135 - Zenlayer Inc | — | — | 0 |
| AS393672US | NTHRIVE-ASN03 - Finthrive, Inc. | — | — | 0 |
| AS393694US | HUNT-COMPANIES - Hunt Companies Business Services | — | — | 0 |