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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) | 227.7M | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 21,026 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,220 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,585 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,933 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,534 |
| 4.6K |
| — |
| 3 |
| AS35873US | MOVE-NETWORKS - Move Networks, inc. | 4.6K | 1 | 12 |
| AS14184US | FTS-AS1 - FOX TELEVISION STATIONS, LLC | 4.6K | — | 18 |
| AS54825US | PACKET - Packet Host, Inc. | 4.6K | 4.3K | 26 |
| AS396502US | HOTSPOTPR - HOTSPOTPR BROADBAND INTERNET, LLC | 4.6K | 4.1K | 17 |
| AS54713US | CAMC - CAMC Health System, Inc. | 4.6K | — | 4 |
| AS12266US | SRN-HOSTING - StoreRunner, Inc. | 4.6K | 1 | 9 |
| AS396878US | SPENCERMUNICIPALUTILITIES - Spencer Municipal Utilities | 4.6K | 65.7K | 27 |
| AS22135US | SKECHERS-USA - Skechers USA | 4.6K | — | 17 |
| AS395357US | RIVIERA-CELLULAR-AND-TELECOMMUNICATIONS-INC - Riviera Telephone Company, Inc. | 4.6K | — | 11 |
| AS44259US | ULTAHOST-AP-AS Ultahost, Inc. | 4.6K | — | 18 |
| AS29752US | ZEN-SDN - Zenlayer Inc | 4.6K | 5 | 23 |
| AS19353US | TUASN7 - Trans Union, LLC | 4.6K | — | 9 |
| AS19790US | ASPIRE-FIBER - Aspire Broadband, LLC | 4.6K | 4.1K | 4 |
| AS26058US | NETSMART-PLEXUS-CLOUD - Netsmart Technologies | 4.6K | — | 4 |
| AS15113US | AMX-LLC-AS - Harman International Industries Inc. | 4.6K | 4 | 21 |
| AS397732US | NETVISION - Net Vision Communications, LLC | 4.6K | 65.5K | 6 |
| AS53926US | APA-US-ASN - Apache Corporation | 4.6K | — | 4 |
| AS397087US | MUW-ASN-01 - Mississippi University for Women | 4.6K | — | 3 |
| AS16816US | S-NETCOM - S-Net, Inc. | 4.6K | 2 | 20 |
| AS46685US | MURPHY-CATV - Murphy Cable TV | 4.6K | — | 4 |
| AS4284US | CENTURYLINK-TSDS-FLTLHS - CenturyLink Communications, LLC | 4.6K | — | 3 |
| AS393406US | DIGITALOCEAN-AS393406 - DigitalOcean, LLC | 4.6K | — | 18 |
| AS401443US | WAP-AC - WAP.AC LLC | 4.6K | — | 16 |
| AS16645US | EPIQSYSTEMS - EPIQ Systems, Inc | 4.6K | — | 11 |
| AS187US | DNSCAST-AS - DNScast | 4.6K | 17 | 34 |
| AS393626US | SHERWOOD-BROADBAND - Sherwood Broadband | 4.6K | 65.5K | 9 |
| AS36032US | WBD-AS36032 - WARNER BROS ENTERTAINMENT INC | 4.6K | — | 11 |
| AS3380US | PPPL-AS1 - Princeton Plasma Physics Laboratory | 4.6K | — | 3 |
| AS53782US | PCOASTP - Pacific Coast Producers | 4.6K | — | 3 |
| AS394867US | VC-ASN-01 - Velocity Communications, Inc. | 4.6K | — | 4 |
| AS19512US | LYONDELL - Lyondell Chemical Company | 4.6K | — | 18 |
| AS21633US | DOI-NBC-NET - U.S. Department of the Interior | 4.6K | — | 4 |
| AS27572US | THEBOE-27572 - The Boeing Company | 4.6K | — | 18 |
| AS33149US | FFASTFILL-INC - Ffastfill Inc. | 4.6K | — | 3 |
| AS33650US | COMCAST-33650 - Comcast Cable Communications, LLC | 4.6K | 109 | 122 |
| AS10584US | TRADEWEB - TradeWeb, LLC | 4.6K | — | 17 |
| AS16492US | DECHERT-LLP - Dechert LLP | 4.6K | — | 3 |
| AS31764US | OAKLAND-USD-NET - OAKLAND UNIFIED SCHOOL DISTRICT | 4.6K | 65.5K | 10 |
| AS22324US | XTEL - XTEL Communications | 4.4K | — | 5 |
| AS399469US | RELIABLE-NETS - Reliable Nets LLC | 4.4K | — | 2 |
| AS21660US | BAXALTA - Baxalta Incorporated | 4.4K | — | 11 |
| AS40801US | LEWISU-ROMEOVILLE - Lewis University | 4.4K | — | 2 |
| AS10320US | ISPN - Internet Services Provider Network | 4.4K | 65.5K | 3 |
| AS6199US | COOPERUNION - Cooper Union | 4.4K | — | 2 |
| AS4243US | WELLSFARGO-4243 - Wells Fargo Bank, N.A. | 4.4K | — | 14 |
| AS7810US | CMPC - CompuCom Systems, Inc. | 4.4K | — | 2 |