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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 | 23,372 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| 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.
32,143 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,819 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,993 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,303 |
| 549.6K |
| 65.5K |
| 93 |
| AS30103US | ZOOM-VIDEO-COMM-AS - Zoom Video Communications, Inc | 541.4K | 84 | 397 |
| AS32098US | TRANSTELCO-INC - Transtelco Inc | 540.4K | 475.8K | 2,538 |
| AS19994US | RACKSPACE - Rackspace Hosting | 537.1K | 65.5K | 66 |
| AS2688US | ATGS-MMD-AS - AT&T Enterprises, LLC | 534.8K | 65.5K | 71 |
| AS7046US | RFC2270-UUNET-CUSTOMER - Verizon Business | 532.2K | 71 | 241 |
| AS29802US | HVC-AS - HIVELOCITY, Inc. | 531.8K | 265.6K | 1,348 |
| AS32934US | FACEBOOK - Facebook, Inc. | 527.6K | 94.8K | 494 |
| AS22516US | CHARTER-22516-CENTRAL-CA-C3 - Charter Communications LLC | 526.8K | 8.5K | 104 |
| AS4454US | TNET-AS - State of Tennessee | 524.5K | — | 25 |
| AS357US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 523.8K | 256 | 19 |
| AS19165US | WEBPASS - Webpass Inc. | 523.5K | 27.9K | 74 |
| AS2381US | WISCNET1-AS - WiscNet | 516.9K | 65.8K | 39 |
| AS30600US | AS-CMN - Metronet | 513K | 16.9M | 210 |
| AS17306US | RISE-BROADBAND - JAB Wireless, INC. | 512.8K | 69.6K | 190 |
| AS7979US | SERVERS-COM - Servers.com, Inc. | 508.4K | 2.3M | 1,968 |
| AS13325US | STOMI - Michigan State Government | 508.2K | — | 9 |
| AS5852US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 504.8K | 4 | 846 |
| AS5056US | AUREON-5056 - Aureon Network Services | 497.2K | 131.6K | 228 |
| AS54004US | LIGHTPATH - Cablevision Lightpath LLC | 494.6K | 65.6K | 342 |
| AS3372US | MCI-ASN - Verizon Business | 476.7K | 65.5K | 106 |
| AS8US | RICE-AS - Rice University | 463.6K | 65.5K | 16 |
| AS394089US | GCP-ENTERPRISE-USER-TRAFFIC - Google LLC | 460.3K | 256 | 107 |
| AS361US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 460.3K | 256 | 15 |
| AS16504US | GRANITE - Granite Telecommunications LLC | 456.4K | 71.7K | 216 |
| AS7287US | PBI-NET-BLK2 - AT&T Enterprises, LLC | 449.5K | 31.7K | 589 |
| AS62904US | AS62904 - Eonix Corporation | 449K | 94.2K | 671 |
| AS3999US | PENN-STATE - The Pennsylvania State University | 443.9K | 65.5K | 14 |
| AS10753US | LUMEN-LEGACY-L3-CUSTOMER-SHARED-USE - Level 3 Parent, LLC | 443.9K | 19 | 1,062 |
| AS8001US | COLOGIX - Cologix, Inc | 441.6K | 73.7K | 61 |
| AS398101US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 440.1K | 291 | 286 |
| AS23520US | LIBERTY-NETWORKS - Columbus Networks USA, Inc. | 440.1K | 131.1K | 122 |
| AS4922US | SHENTEL - Shenandoah Cable Television LLC | 437.5K | 338.4K | 141 |
| AS398781US | OSL-188 - OCULUS NETWORKS INC | 437.2K | — | 1,694 |
| AS32475US | SINGLEHOP-LLC - Internap Holding LLC | 437K | 131.1K | 244 |
| AS19957US | STATE-OF-TENNESSEE-NETTN - AT&T Enterprises, LLC | 436.2K | — | 54 |
| AS26662US | XEROX-WV - XEROX CORPORATION | 432.1K | — | 22 |
| AS13445US | WEBEX - Cisco Webex LLC | 431.9K | 70.5K | 203 |
| AS647US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | 422.7K | — | 419 |
| AS127US | JPL-AS127 - Jet Propulsion Laboratory | 415.5K | 258 | 71 |
| AS13490US | BUCKEYECABLEVISION - Buckeye Cablevision, Inc. | 412.2K | 262.1K | 722 |
| AS9294US | GNETINC-AS-AP - GNET INC. | 411.1K | — | 180 |
| AS6559US | NCIH - State of NC - State Telecommunications Services | 410.4K | — | 9 |
| AS2711US | SPIRITTEL-AS - Spirit Communications | 407.8K | 65.5K | 140 |
| AS21769US | AS-COLOAM - Colocation America Corporation | 405.8K | 2.6M | 106 |
| AS17055US | UTAH - University of Utah | 403.2K | 65.5K | 18 |
| AS297US | AS297 - National Aeronautics and Space Administration | 401.4K | 65.5K | 28 |