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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,525 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,309 |
| 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.
32,245 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 991 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| — |
| — |
| 0 |
| AS18557US | HAWKCOMM - Hawk Communications LLC | — | — | 0 |
| AS18613US | LIVEVOX - LiveVox, INC. | — | — | 0 |
| AS18677US | COLUMBUS-NETWORKS - Columbus Networks USA, Inc. | — | — | 0 |
| AS18713US | KYN-GTS - Kyndryl | — | — | 0 |
| AS18832US | SUNGARDAS-18832 - BroadbandONE, LLC | — | — | 0 |
| AS18857US | USD231-AS - USD 231 Gardner Edgerton | — | — | 0 |
| AS18970US | XNPD - The NPD Group Inc. | — | — | 0 |
| AS19004US | SCHWAB-RETIREMENT-19004 - Charles Schwab & Co., Inc. | — | — | 0 |
| AS19047US | AWS-01 - Amazon.com, Inc. | — | — | 0 |
| AS19057US | KYN-GTS - Kyndryl | — | — | 0 |
| AS19069US | ASN-19069 - Nasdaq, Inc. | — | — | 0 |
| AS19134US | FTBONLINE - First Horizon National Corporation | — | — | 0 |
| AS19143US | FWS-NET - U.S. Fish and Wildlife Service | — | — | 0 |
| AS19269US | FMRCOC-LEFT - FMR LLC | — | — | 0 |
| AS19270US | JPMORGAN-CPS-DALLAS-TX - JPMorgan Chase & Co. | — | — | 0 |
| AS19279US | VISTAAR - VISTAAR | — | — | 0 |
| AS19374US | AS-TIERP-19374 - TierPoint, LLC | — | — | 0 |
| AS19385US | 617A-AS-2 - 617A Corporation | — | — | 0 |
| AS19397US | ACN-DIGITAL-PHONE - ACN Communication Services, LLC | — | — | 0 |
| AS19425US | WAYMO - Google LLC | — | — | 0 |
| AS19479US | CERVALIS - CyrusOne LLC | — | — | 0 |
| AS19610US | AS19610 - Raytheon Company | — | — | 0 |
| AS19640US | SD-SGF-01 - Stronghold Data LLC | — | — | 0 |
| AS19655US | METALLUS-INCORPORATED - TimkenSteel Corporation | — | — | 0 |
| AS19686US | ITST-AS - Intelsat GlobalConnex Solutions (GXS) | — | — | 0 |
| AS19719US | STI - Southland Technology, Inc. | — | — | 0 |
| AS19784US | TBA - FIRSTLIGHT FEDERAL CREDIT UNION | — | — | 0 |
| AS19956US | STATE-OF-TENNESSEE-NETTN - AT&T Enterprises, LLC | — | — | 0 |
| AS19965US | FCS - First Class Solutions, LLC | — | — | 0 |
| AS19986US | BUC-INTL - BUC INTERNATIONAL | — | — | 0 |
| AS19995US | VSECORP - VSE Corporation | — | — | 0 |
| AS20017US | TRANSCORE-FBS - DAT Solutions, LLC | — | — | 0 |
| AS20049US | LINKEDIN - LinkedIn Corporation | — | — | 0 |
| AS20059US | CAR-PART - PHONEWARE, INC. | — | — | 0 |
| AS20107US | THEDOW-ASN - The Dow Chemical Company | — | — | 0 |
| AS20108US | PI-ASN - Premier Innovisions, Inc | — | — | 0 |
| AS20223US | CBSITE-QTW - CareerBuilder, LLC | — | — | 0 |
| AS20225US | TELJET - FirstLight Fiber, Inc. | — | — | 0 |
| AS20245US | VONAGE-20245 - Vonage Holdings, Inc. | — | — | 0 |
| AS20377US | MLODE-COM - Cal.net, Inc. | — | — | 0 |
| AS20400US | CUDIRECTCORPORATION - CU Direct Corporation | — | — | 0 |
| AS20445US | HDT - HDT Engineered Technologies | — | — | 0 |
| AS20451US | KEYSTONE-PEER-REVIEW - Keystone Peer Review Organization, Inc. | — | — | 0 |
| AS20465US | BILL-AS - Bill.com, LLC. | — | — | 0 |
| AS20468US | WINDSTREAM-COMMUNICATIONS - Windstream Communications LLC | — | — | 0 |
| AS21540US | WBD-US-WEST-ASN1 - Lewis Roca Rothgerber LLP | — | — | 0 |