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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. | 218M | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| WDC-US - Western Digital Corporation |
| 5.1K |
| — |
| 14 |
| AS14106US | TAYLOR-ELECTRICCOOPERATIVE-INC - Taylor Electric Cooperative Inc | 5.1K | 4.1K | 5 |
| AS40773US | FRANTIC-LLC - Frantic, LLC. | 5.1K | 1 | 11 |
| AS53301US | RADIOLINKINTERNET - Radio Link Internet | 5.1K | — | 4 |
| AS40841US | MARKETAXESS-INC-AS - MARKETAXESS HOLDINGS, INC. | 5.1K | — | 15 |
| AS15121US | CALTEL-COM - Calaveras Internet Company | 5.1K | 65.5K | 18 |
| AS5088US | AS5088 - FOX CORPORATION | 5.1K | — | 5 |
| AS10632US | PSE-AS - Puget Sound Energy | 5.1K | — | 12 |
| AS395425US | FANDANGO - Fandango Media, LLC | 5.1K | — | 4 |
| AS32442US | USMNSTCMARCO01 - Marco Technologies LLC | 5.1K | — | 4 |
| AS32003US | LITEWIRE-EV - LiteWire Internet Services, Inc. | 5.1K | — | 2 |
| AS11245US | AS11245 - The Goodyear Tire & Rubber Company | 5.1K | — | 20 |
| AS15177US | STARTOUCH-WA1 - STARTOUCH INC | 5.1K | — | 3 |
| AS30455US | HOSTVENOM-LLC - HostVenom LLC | 5.1K | 4.1K | 18 |
| AS30491US | CROWELLP - Crowe LLP | 5.1K | — | 20 |
| AS13943US | YK-COMMUNICATIONS - Y K Communications, LTD | 5.1K | 65.5K | 4 |
| AS395266US | KEYSIGHT-TECHNOLOGIES - Keysight Technologies, Inc | 4.9K | 6 | 26 |
| AS10975US | NET-AIG - American International Group Data Center, Inc. | 4.9K | 4 | 19 |
| AS393964US | HMFB - High Mountain Farm, LLC | 4.9K | — | 13 |
| AS53767US | ICASTCENTER - iCastCenter | 4.9K | 65.5K | 6 |
| AS1757US | LEXIS-AS - RELX inc. | 4.9K | — | 16 |
| AS11228US | ARINC - ARINC INCORPORATED | 4.9K | 257 | 14 |
| AS17073US | ALLEGISGROUP7312 - Allegis Group | 4.9K | — | 19 |
| AS54300US | LIGHTSPEED-VOICE - Lightspeed Voice | 4.9K | — | 15 |
| AS395747US | CLOUDFLARENET-SFO05 - Cloudflare, Inc. | 4.9K | 21 | 40 |
| AS394869US | APNC - Asia Pacific Network Corporation | 4.9K | — | 19 |
| AS397388US | BBTC-ALASKA - Bristol Bay Telephone | 4.9K | 65.5K | 4 |
| AS62994US | LCLOUD - LITE CLOUD INC | 4.9K | — | 13 |
| AS40393US | CROSSLINKNETWORKS - Crosslink Networks LLC | 4.9K | — | 16 |
| AS26001US | BLUIP - BLUIP INC | 4.9K | — | 9 |
| AS11698US | WIATEL - WESTERN IOWA TELEPHONE ASSOCIATION (A COOPERATIVE) | 4.9K | 65.5K | 5 |
| AS26052US | ABN-AMRO-CLEARING-USA-LLC - Fortis Clearing Chicago LLC | 4.9K | — | 4 |
| AS21678US | NEW-BREED - XPO Supply Chain, Inc. | 4.9K | — | 15 |
| AS400856US | HILLENBRAND-INC - Hillenbrand, Inc. | 4.9K | 256 | 5 |
| AS36014US | ONE-STOP-INTERNET - One-Stop Communications of PA Inc | 4.9K | 65.5K | 9 |
| AS22062US | GEOSTAR - GeoStar, LLC. | 4.9K | — | 10 |
| AS14616US | IVANET-AMSTERDAM - IBASIS INC. | 4.9K | 256 | 17 |
| AS11758US | IRISNETWORKS - IRIS Networks | 4.9K | 65.5K | 6 |
| AS394056US | BIFIV - BIF IV | 4.9K | 73.7K | 15 |
| AS62958US | ADT-LLC - ADT LLC | 4.9K | — | 19 |
| AS26153US | BCBSSC - Blue Cross Blue Shield of South Carolina | 4.9K | — | 7 |
| AS26385US | THE-UNIVERSITY-OF-VERMONT-MEDICAL-CENTER-1 - The University of Vermont Medical Center Inc | 4.9K | — | 19 |
| AS54053US | REALOGY-DDC - Realogy Group LLC | 4.9K | — | 19 |
| AS23367US | AS-ADN - Adaptive Data Networks, LLC | 4.9K | 65.5K | 11 |
| AS14184US | FTS-AS1 - FOX TELEVISION STATIONS, LLC | 4.9K | — | 19 |
| AS14333US | ORI-NET - On-Ramp Indiana, Inc. (ORI.NET) | 4.9K | 4 | 8 |
| AS26120US | RHYTHMONE - RhythmOne, LLC | 4.9K | 1 | 4 |