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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 | 21,015 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,222 |
| 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 | 3,584 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,935 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,561 |
| 16.4K |
| — |
| 5 |
| AS5101US | LEECOUNTYSCHOOLS - The School District of Lee County | 16.4K | — | 1 |
| AS12257US | EMC-AS12257 - Dell, Inc. | 16.4K | 1K | 69 |
| AS16426US | CITYOFCOLUMBUSOHIO - City of Columbus | 16.4K | — | 3 |
| AS32629US | CITY-OF-CHARLOTTE-ASN - City of Charlotte | 16.4K | 256 | 2 |
| AS394972US | VALLEY-COMMUNICATIONS - Valley Electric Association | 16.1K | — | 43 |
| AS19218US | MTE-ASN - Midvale Telephone Exchange, Incorporated | 16.1K | 8.7K | 39 |
| AS16628US | DEDICATED-FIBER-COMMUNICATIONS - DedFiberCo | 16.1K | 1 | 64 |
| AS11045US | STERLING - Sterling Communications, Inc. | 16.1K | 65.5K | 39 |
| AS15130US | USDOJ-GOV - U. S. Department of Justice | 16.1K | 4.1K | 41 |
| AS11911US | THE-BANK-OF-NEW-YORK-MELLON-CORPORATION-AS11911 - The Bank of New York Mellon Corporation | 16.1K | — | 49 |
| AS14363US | MTCCOMM - MTC Communications, Inc. | 16.1K | 65.8K | 19 |
| AS25843US | EVOLVEIP - EvolveIP, LLC | 16.1K | 66K | 26 |
| AS53939US | DLR-SEATTLE - Telx | 16.1K | 4.4K | 11 |
| AS200598US | lunarnaut Lunarnaut, LLC | 16.1K | — | 29 |
| AS62738US | ZOCHNET1 - ZochNet | 16.1K | — | 35 |
| AS54434US | WNMC - WNM Communications | 15.9K | — | 13 |
| AS26785US | NETWURX-AS - Netwurx LLC | 15.9K | 65.5K | 7 |
| AS40264US | TWC-40264-WI-MN-UPPERMI-C3 - Charter Communications LLC | 15.9K | 514 | 23 |
| AS16832US | SECOM-1 - Secom, Inc | 15.9K | 65.5K | 6 |
| AS19693US | CENTRILOGIC-ASN - Centrilogic, Inc. | 15.9K | 65.5K | 26 |
| AS7799US | OLYPENASN - Olypen, Inc. | 15.9K | — | 11 |
| AS26809US | SCOTTEPB - Scottsboro Electric Power Board | 15.9K | 65.5K | 23 |
| AS18435US | THEJUNCTION - The Junction Internet, LLC | 15.9K | — | 21 |
| AS26129US | HOLLYWOOD-CENTER - Sunset Las Palmas Entertainment Properties, LLC | 15.6K | — | 30 |
| AS19793US | LINIVO - Linivo LLC | 15.6K | — | 53 |
| AS17216US | DC74-AS - DC74 LLC | 15.6K | 65.5K | 21 |
| AS14280US | NETNATION - Ntirety, Inc. | 15.6K | 65.5K | 6 |
| AS23393US | NUCDN - NuCDN LLC | 15.6K | 65.5K | 24 |
| AS209697US | PARKERBROADBAND Parker Broadband LLC | 15.6K | — | 60 |
| AS19156US | REDBOLT-AS-01 - Continental Divide Electric Cooperative, Inc | 15.6K | 65.5K | 32 |
| AS53766US | VMWARE-SASE - Arista Networks, Inc. | 15.6K | 21 | 60 |
| AS12261US | DEKALB - DTC Communications, Inc. | 15.6K | 65.5K | 29 |
| AS16941US | CENTURYLINK-LEGACY-FUSEPOINT-CTS-CANADA-POP - CenturyLink Communications, LLC | 15.6K | — | 9 |
| AS6295US | LUNAVI-WA - Lunavi, Inc. | 15.6K | 4.1K | 11 |
| AS10367US | FIBERCAST - Fibercast Corporation | 15.6K | — | 31 |
| AS19137US | EPSILON-INTERACTIVE - Epsilon Interactive LLC | 15.6K | — | 34 |
| AS8052US | TWC-8052-PEAKVIEW - Charter Communications Inc | 15.6K | 16 | 22 |
| AS10750US | MARK-TWAIN - Mark Twain Rural Telephone Co. | 15.6K | 65.5K | 18 |
| AS11233US | GORGE-NETWORKS - Gorge Networks LLC | 15.6K | 65.5K | 9 |
| AS393789US | CENTURYLINK-CHIA-PROJECT - CenturyLink Communications, LLC | 15.6K | — | 52 |
| AS19955US | PINELAND-TELEPHONE - Pineland Telephone Cooperative, Inc. | 15.6K | — | 61 |
| AS11192US | SMART-CITY-HQ - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 15.4K | — | 26 |
| AS20222US | PLTE - Plant Telephone Company | 15.4K | 65.5K | 30 |
| AS30238US | AS-IRONP-VEGA - Cisco Systems Ironport Division | 15.4K | 4 | 64 |
| AS15250US | USFAMILY-ASN - Metronet | 15.4K | — | 6 |
| AS36514US | FLORIDALEGISLATURE - Florida Legislature | 15.4K | — | 29 |