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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| — |
| — |
| 0 |
| AS14153US | EDGECAST - Edgecast Inc. | — | — | 0 |
| AS14370US | IQNT-BROAD-6-14370 - Inteliquent, inc. | — | — | 0 |
| AS14406US | XO-ASN3 - Verizon Business | — | — | 0 |
| AS14491US | FGLIFE-AS-NUMBER - Fidelity and Guaranty Life Business Services | — | — | 0 |
| AS14504US | PBL-77-AS1 - Perpetual Broadband llc | — | — | 0 |
| AS14710US | ASN-CXA-OM-14710-CBS - Cox Communications Inc. | — | — | 0 |
| AS14837US | OSCAR-GRUSS-AS - Oscar Gruss & Son Incorporated | — | — | 0 |
| AS14839US | INSIGHT-AS - Insight Direct USA, Inc. | — | — | 0 |
| AS14853US | AOL-MTC3 - Yahoo Holdings Inc. | — | — | 0 |
| AS14968US | SAIC-2 - SAIC | — | — | 0 |
| AS15021US | NOOSH - NOOSH, INC | — | — | 0 |
| AS15023US | LOTUS-CANTON - Lotus International Company | — | — | 0 |
| AS15060US | XO-ASN7 - Verizon Business | — | — | 0 |
| AS15254US | TIHC-DC1 - TI Intermediate Holdings, LLC | — | — | 0 |
| AS15291US | POLAROID - Polaroid Corporation | — | — | 0 |
| AS15316US | IVANET-VANCOUVER - IBASIS INC. | — | — | 0 |
| AS16425US | SOVER2-ASN - FirstLight Fiber, Inc. | — | — | 0 |
| AS16467US | GEOLINKS-AS - GeoLinks | — | — | 0 |
| AS16495US | CABLEAM-AZ-AS - CableAmerica | — | — | 0 |
| AS16518US | LUNAVI-DAL - Lunavi, Inc. | — | — | 0 |
| AS16646US | BI-LO-AS - BI-LO LLC | — | — | 0 |
| AS16682US | HAGGAR - Haggar Clothing Co. | — | — | 0 |
| AS16704US | ITP01 - ITP | — | — | 0 |
| AS16773US | BFG - Big Fish Games, Inc. | — | — | 0 |
| AS16836US | UDATA - Watch Communications | — | — | 0 |
| AS16950US | SECURITYARSENAL-01 - Security Arsenal | — | — | 0 |
| AS16977US | DODSONGROUP - Axia Technology Partners, LLC | — | — | 0 |
| AS17061US | ROYALEENERGY - Royale Energy Inc | — | — | 0 |
| AS17112US | BBDO-NY - BBDO New York | — | — | 0 |
| AS17155US | LYDALL - Lydall, Inc. | — | — | 0 |
| AS17165US | THE-PALEY-CENTER-FOR-MEDIA - The Paley Center for Media | — | — | 0 |
| AS17226US | ATT-CERFNET-BLOCK - AT&T Enterprises, LLC | — | — | 0 |
| AS17229US | ATT-CERFNET-BLOCK - AT&T Enterprises, LLC | — | — | 0 |
| AS17265US | GGC-6 - Axiall Corporation | — | — | 0 |
| AS17288US | KANAKUKMINISTRIES - Kanakuk Ministries | — | — | 0 |
| AS17360US | ASN-BIX - Markley Boston LLC | — | — | 0 |
| AS17395US | MSJ-ASN-1 - Mount St. Joseph University | — | — | 0 |
| AS18441US | IP-NETWORKED-SERVICES - IP Networked Services Inc. | — | — | 0 |
| AS18487US | VTLA - NTT Global Networks Incorporated | — | — | 0 |
| AS18548US | MYCELIA-ASN-01 - Mycelia Foundation | — | — | 0 |
| AS18574US | SILVACO - Silvaco Inc. | — | — | 0 |
| AS18618US | WCENTRALN - west central wireless | — | — | 0 |
| AS18699US | JAGUAR-2 - Jaguar Communications | — | — | 0 |
| AS18716US | AUTODESK-SAAS-OPERATIONS - Autodesk, Inc. | — | — | 0 |
| AS18764US | PHJW-LLP - Paul, Hastings, Janofsky & Walker LLP | — | — | 0 |
| AS18811US | MENTOS-INTERNET-SERVICE - MENTOS COUPLE, INC. | — | — | 0 |