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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 |
| AS400751US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS398973US | MORGAN-ASN-EV-3 - Morgan Stanley | — | — | 0 |
| AS400217US | TMZ1 - TMZ | — | — | 0 |
| AS399506US | EIT-ASN-01 - Eagle IT | — | — | 0 |
| AS399950US | ATORI LLC - Atori LLC | — | — | 0 |
| AS402105US | SPANSCALE - SPANSCALE Corporation | — | — | 0 |
| AS54418US | ANBTX - American National Bank of Texas | — | — | 0 |
| AS393672US | NTHRIVE-ASN03 - Finthrive, Inc. | — | — | 0 |
| AS208459US | AZ-Intl AZ International L.L.C. | — | — | 0 |
| AS199299US | FREEFOXCONNECT FST Networks LTD | — | — | 0 |
| AS201214US | GAVINNET Gavin John | — | — | 0 |
| AS205880US | AS-Hytron Hytron Network Services (US) LLC | — | — | 0 |
| AS206116US | GATE-AS-EU Gate Communications LLC | — | — | 0 |
| AS135306US | CHPL-US-AP - Computer Helper Pty. Ltd. | — | — | 0 |
| AS215281US | NORTHEASTHOST Northeast Hosting LLC | — | — | 0 |
| AS63375US | FULLSPANSOLUTIONS-AS02 - Full Span Solutions LLC | — | — | 0 |
| AS63323US | CAPTIONCALL - CaptionCall | — | — | 0 |
| AS210527US | ONEGIG 1gb LLC | — | — | 0 |
| AS132128US | CTL-AS-AP - CommScope Technologies LLC | — | — | 0 |
| AS215327US | Altare Altare AI LLC | — | — | 0 |
| AS207873US | LOOKINGCENTER HOSTING GALLERY LLC | — | — | 0 |
| AS211420US | kryptoslogic Kryptos Logic LLC | — | — | 0 |
| AS393343US | RW-SHANHS - Ranch WiFi LLC | — | — | 0 |
| AS54263US | AS-ASN-4 - Nasdaq, Inc. | — | — | 0 |
| AS54255US | BS - Bitstine LLC | — | — | 0 |
| AS54000US | ARC-INTERNET - Augusta Georgia | — | — | 0 |
| AS54117US | LQNT-XNET01 - LIQUIDNET HOLDINGS INC. | — | — | 0 |
| AS400206US | 172-97-72-0-WIMAX-EXPRESS - WiMAX Express Inc. | — | — | 0 |
| AS394360US | EIG-AS-HND - EIG Services, Inc. | — | — | 0 |
| AS46487US | YAKAMANATIONNETWORKS-01 - Yakama Nation Networks | — | — | 0 |
| AS393882US | TISDCS-ASN - TISDCS | — | — | 0 |
| AS393752US | DE-CIX-RIC-AS - DE-CIX North America Inc. | — | — | 0 |
| AS393261US | RN-ASN-BIL - Right Networks, LLC | — | — | 0 |
| AS393411US | APOG-WASHINGTON-COLLEGE - Apogee Telecom Inc. | — | — | 0 |
| AS395039US | AS-MS-31608 - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | — | — | 0 |
| AS395026US | AS-500-RP - Ring Power Corporation | — | — | 0 |
| AS394871US | NETAICLOULD LLC - Netaiclould LLC | — | — | 0 |
| AS402933US | VOSMET - Vosmet | — | 5.2M | 10 |
| AS63367US | KELINCOM-2 - Kellin Communications | — | — | 0 |
| AS63292US | CIX - DC74 LLC | — | — | 0 |
| AS63162US | CTG-01 - Computer Technologies Group, Inc | — | — | 0 |
| AS63223US | LPS-11 - Black Knight IP Holding Company, LLC | — | — | 0 |
| AS62818US | SST-59 - Pinpoint Communications, Inc. | — | — | 0 |
| AS62788US | AMBIENTHLLC - Ambivalent Enthusiast LLC | — | — | 0 |
| AS62684US | XLBROADBAND - Bertram Communications LLC | — | — | 0 |
| AS62859US | QTTECHEXT - QT Technologies | — | — | 0 |