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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| — |
| — |
| 0 |
| AS13557US | CORESPACE-DAL3 - CoreSpace, Inc. | — | — | 0 |
| AS13589US | PANAMSAT-1 - PanAmSat Corporation | — | — | 0 |
| AS13600US | CONVO - Convo | — | — | 0 |
| AS13605US | MEMA-CFMR - Maryland Emergency Management Agency | — | — | 0 |
| AS13658US | QUANTIL - QUANTIL, INC | — | — | 0 |
| AS13664US | VRIS-AS-BLOCK - Verizon Business | — | — | 0 |
| AS13711US | GEORGIA-PACIFIC - Georgia-Pacific LLC | — | — | 0 |
| AS13716US | ALIGHT-SOLUTIONS-LLC - Alight | — | — | 0 |
| AS13890US | AS-INAPCDN-LAX - Unitas Global | — | — | 0 |
| AS13910US | REGISTER - Register.com, Inc | — | — | 0 |
| AS14031US | SCXY - Association for Computing Machinery, Inc. | — | — | 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 |
| 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 |