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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| APC-CC-CUSTOMERS - RingSquared CC |
| 6.1K |
| — |
| 2 |
| AS40784US | HIQDATA - hiQ Data Corporation | 6.1K | — | 2 |
| AS33284US | LBI-ASN - LBiSat, LLC | 6.1K | — | 24 |
| AS14238US | FC - Falcon Communications LLC | 6.1K | — | 14 |
| AS12155US | AS-HMPL - Henderson Municipal Power & Light | 6.1K | 4.1K | 3 |
| AS27069US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 6.1K | — | 18 |
| AS397293US | INFINIUM - Victoria Electric Cooperative | 6.1K | — | 7 |
| AS400381US | CENTRICTX-ASN - Centric Fiber Texas, LLC | 6.1K | 65.5K | 16 |
| AS19919US | VSW - VA SkyWire, LLC | 6.1K | 1M | 3 |
| AS53971US | PDFIBER-LLC - PD Fiber, LLC | 6.1K | — | 4 |
| AS398291US | AS-PHREESIA-1 - Phreesia, Inc. | 6.1K | 1 | 19 |
| AS23344US | DSS-EDGE - Disney Worldwide Services, Inc. | 6.1K | 23 | 47 |
| AS401909US | MINRTT - MinRTT Inc | 6.1K | 65.5K | 10 |
| AS31849US | PINNACLE - TGM Pinnacle Network Solutions llc | 6.1K | 65.5K | 6 |
| AS4497US | UPSTEL-NET - Upsala Co-operative Telephone Association | 6.1K | — | 5 |
| AS46414US | OTELCO-MA - GoNetSpeed | 6.1K | 4.1K | 20 |
| AS36827US | PBTC-ARL - PINE BELT TELEPHONE CO | 6.1K | 65.5K | 3 |
| AS63298US | FATBEAM-TEKFINITY - Fatbeam, LLC | 6.1K | — | 12 |
| AS22283US | SIDLEY - Sidley Austin LLP | 6.1K | — | 24 |
| AS1321US | ANSBB-ASNNET-1 - Verizon Business | 6.1K | 10 | 31 |
| AS14016US | CAPCON-NETWORK-LLC - Capcon Networks | 6.1K | 4 | 12 |
| AS40555US | CONNECTTO - ConnectTo Communications, Inc | 6.1K | 65.5K | 5 |
| AS17163US | AFGINC-1 - Great American Insurance Company | 6.1K | — | 8 |
| AS36612US | CLARKCOUNTYWA - Clark County WA | 6.1K | — | 2 |
| AS63251US | METRO-WIRELESS - Metro Wireless International, Inc. | 6.1K | — | 12 |
| AS21779US | HARLANONLINE - Harlan Community Television, Inc. | 6.1K | — | 3 |
| AS36146US | ARKWEST-COMMUICATIONS - Arkwest Communications Inc | 6.1K | 4.1K | 25 |
| AS398413US | MIAMI-DADE-COUNTY-ASN - Miami-Dade County | 6.1K | — | 17 |
| AS25674US | MT-1392-25674 - Lingo Telecom, LLC | 6.1K | — | 20 |
| AS401319US | TENSORWAVE-01 - TensorWave Inc. | 6.1K | — | 11 |
| AS395924US | GC-AMERICA - Globecast America | 6.1K | — | 9 |
| AS19275US | INTERVAL - Interval International, Inc. | 6.1K | — | 9 |
| AS36243US | BPS-NETWORKS - BPS Networks | 6.1K | 65.5K | 6 |
| AS19982US | TWRS-FL - Natural Wireless, LLC | 6.1K | — | 4 |
| AS20253US | QWILTED-PROD-01 - Qwilt Inc. | 6.1K | — | 9 |
| AS5744US | USPTO - United States Patent and Trademark Office | 6.1K | 322 | 10 |
| AS17211US | GTEC-ORG-ARIN - Grafton Technologies, Inc. | 6.1K | — | 2 |
| AS54045US | WAVETECHSYSTEMS - Wavetech Systems, LLC. | 6.1K | — | 9 |
| AS393230US | DM-TECH-INTERNET - DM-Tech Internet | 6.1K | — | 10 |
| AS7265US | WOW-INTERNET - WideOpenWest Finance LLC | 6.1K | — | 21 |
| AS32575US | DIGICERT - DigiCert, Inc. | 6.1K | 257 | 18 |
| AS36294US | WINFIELD-WIRELESS - Clark County Computer Connections | 6.1K | — | 3 |
| AS20125US | CAMPUS - Luther Seminary | 6.1K | — | 2 |
| AS18948US | NYMC2000-ARIN - New York Medical College | 6.1K | — | 3 |
| AS6140US | TWO-P - Two P | 6.1K | 4.1K | 9 |
| AS397377US | ESTES-PARK - Town of Estes Park | 6.1K | — | 7 |
| AS1696US | CITIGROUP-1696 - Citigroup Inc. | 6.1K | — | 24 |