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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. | 211.2M | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,712 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,958 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,299 |
| — |
| — |
| 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 |
| AS21543US | RITEAID - Rite Aid Corporation | — | — | 0 |
| AS21579US | ACCESS2-OHIO - ACCESS | — | — | 0 |
| AS21580US | CAL-NET-INC - Cal.net, Inc. | — | — | 0 |
| AS21627US | RSQ-AS-2010 - RingSquared | — | — | 0 |
| AS21634US | ARISTAASN2 - Arista Networks, Inc. | — | — | 0 |
| AS21637US | SIOUIX - HOUIX | — | — | 0 |
| AS21667US | NTSLLC-AS1 - Nirvana Technology Solutions LLC | — | — | 0 |
| AS21797US | RISE-TX-PB-AS21797 - JAB Wireless, INC. | — | — | 0 |
| AS21863US | INTELIVANT-CONSULTING - intelivant consulting, llc | — | — | 0 |
| AS21865US | ARA-AS-1 - Allison Royce & Associates, Inc. | — | — | 0 |
| AS22166US | BERTRAM-COM2 - Bertram Communications LLC | — | — | 0 |
| AS22175US | TWOSIGMA - TWO SIGMA INVESTMENTS, LP | — | — | 0 |
| AS22248US | WY-JUDICIAL - Wyoming Supreme Court | — | — | 0 |
| AS22277US | TIL-ASN - Torchlight Investors, LLC | — | — | 0 |
| AS22286US | CCTB - Crisis Center of Tampa Bay | — | — | 0 |