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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 |
| 20.7K |
| 65.5K |
| 44 |
| AS63414US | DAKTEL-AS1 - Dakota Central Telecommunications Cooperative | 20.7K | 65.5K | 18 |
| AS17012US | PAYPAL - PayPal, Inc. | 20.7K | 16 | 24 |
| AS20330US | NYS-UNIFIED-COURTS - New York State Unified Court System | 20.7K | — | 9 |
| AS19113US | DUKE-ENERGY - Duke Energy Corporation | 20.7K | — | 14 |
| AS398991US | X99-US - X99 | 20.7K | 37.9K | 68 |
| AS19036US | LORAL-CYBERSTAR - Telesat Network Services Inc | 20.7K | — | 4 |
| AS13728US | DPCOM-ASN05222010 - D&P Communications, Inc. | 20.7K | 65.5K | 6 |
| AS395336US | MACST-ATL - MacStadium, Inc. | 20.7K | 8.2K | 45 |
| AS33606US | C-SPIRE-BUSINESS - TekLinks, Inc. | 20.7K | 65.5K | 24 |
| AS26978US | QTS-PHX - Quality Technology Services, LLC | 20.7K | 65.5K | 9 |
| AS36687US | WILINE - WiLine Networks Inc. | 20.7K | 65.5K | 11 |
| AS16503US | ZAYO-16503 - Zayo Bandwidth | 20.7K | — | 4 |
| AS46719US | COMCELL4236207 - COMCELL INC. | 20.7K | — | 22 |
| AS3112US | OARNET-AS-1 - OARnet | 20.5K | — | 25 |
| AS21828US | TCOE - Tulare County Office of Education | 20.5K | — | 3 |
| AS12133US | LISCO - Local Internet Service Company | 20.5K | — | 2 |
| AS400706US | HEART-OF-IOWA-UNION - Heart of Iowa Communications Cooperative | 20.5K | 66.8K | 25 |
| AS18897US | MONTANA-SKY-NETWORKS-INC - Montana Sky Networks, Inc. | 20.5K | 131.1K | 17 |
| AS19963US | DOSUB-1 - Dutchess County BOCES | 20.5K | — | 5 |
| AS397836US | NORTHCENTRAL-MS-OB-01 - Northcentral Electric Cooperative | 20.5K | 65.5K | 10 |
| AS7224US | AMAZON-AS - Amazon.com, Inc. | 20.5K | — | 26 |
| AS32477US | ONLINE-TECH-LLC2 - Otava, LLC | 20.5K | 4.1K | 22 |
| AS27422US | TNSTATE - Tennessee State University | 20.5K | — | 3 |
| AS13994US | OMU-1 - Owensboro Municipal Utilities | 20.5K | — | 49 |
| AS25697US | UPCLOUDUSA - UpCloud USA Inc | 20.5K | 147.5K | 27 |
| AS7876US | DRS-1 - Dominion Energy Services, Inc. | 20.5K | — | 4 |
| AS400402US | HOSTING-BOT - Hosting Bot, LLC | 20.5K | 17 | 64 |
| AS17389US | IHS-GROUP - Information Handling Services | 20.5K | — | 4 |
| AS23141US | DTCNET - Doylestown Communications Inc | 20.5K | — | 3 |
| AS3389US | FORDSRL-AS - Ford Motor Company | 20.5K | 2 | 9 |
| AS19058US | IRTC-NET - Illinois Rural Telecommunication Co. | 20.5K | 65.5K | 32 |
| AS395567US | BLOXNET - dcBLOX, Inc. | 20.5K | 4.1K | 46 |
| AS40092US | ONIAAS - HostPapa | 20.5K | 327.7K | 28 |
| AS10615US | PAINEWEBBER-ASN - UBS AG | 20.5K | — | 60 |
| AS32890US | BTC-AS-1 - Beehive Telephone Company, Inc. | 20.5K | 65.5K | 52 |
| AS40623US | GFDL - Office of Oceanic and Atmospheric Research - Geophysical Fluid Dynamics Laboratory | 20.5K | 17 | 4 |
| AS26068US | ONSH-NET-CHGO-BLK01 - OnShore, Inc. | 20.5K | — | 8 |
| AS3853US | WHIDBEY - Whidbey Telephone Company | 20.5K | 65.5K | 4 |
| AS398420US | TISHOMINGO-CONNECT - Tishomingo Connect, LLC | 20.5K | — | 26 |
| AS400110US | ANUVU-AVI-01 - Anuvu Operations LLC | 20.2K | — | 11 |
| AS12050US | DIRECTV-BROADBAND - DIRECTV, LLC | 20.2K | — | 16 |
| AS17139US | COLORADOCOLO - Corporate Colocation Inc. | 20.2K | 65.5K | 36 |
| AS22647US | CONSOLIDATED FLORIDA - Fidium | 20.2K | — | 31 |
| AS54519US | US-SIGNAL-WI02 - US Signal Company, L.L.C. | 20.2K | 256 | 11 |
| AS36426US | ISOTRASN - IsoTropic Networks, Inc. | 20.2K | — | 16 |
| AS19721US | MHN - Magellan Health Services | 20.2K | — | 14 |