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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 | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| 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.
32,247 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. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| — |
| — |
| 0 |
| AS23059US | LLNW-LATAM - Limelight Networks, Inc. | — | — | 0 |
| AS23085US | WATSONPHARM - Allergan, Inc. | — | — | 0 |
| AS23165US | BPAS-01 - Brierley & Partners, Inc. | — | — | 0 |
| AS23205US | DIGIS-23205 - JAB Wireless, INC. | — | — | 0 |
| AS23226US | TFA - Teach For America, Inc. | — | — | 0 |
| AS23426US | FORVIS-LLP - BKD LLP | — | — | 0 |
| AS23429US | AS-PFE-CCA - Pfizer Inc. | — | — | 0 |
| AS23454US | AKAMAI-AS - Akamai Technologies, Inc. | — | — | 0 |
| AS23524US | CHARTER-23524-NA - Charter Communications LLC | — | — | 0 |
| AS23533US | PIP-ASN - Permian Investment Partners, LP | — | — | 0 |
| AS23536US | AZURE-NETWORKS - Area Temps, Inc. | — | — | 0 |
| AS23738US | TEEMO-AS-AP - Bandle City Internet | — | — | 0 |
| AS25661US | BITFIRE-PHX - BitFire Networks, LLC | — | — | 0 |
| AS25672US | SB1FCU-ASN-1 - Ardent Credit Union | — | — | 0 |
| AS25704US | FALCON-ONE-01 - Falcon One Consulting LLC | — | — | 0 |
| AS25742US | DONERUS - W.B. Doner | — | — | 0 |
| AS25815US | USITEK-AS - US ITEK Incorporated | — | — | 0 |
| AS25929US | MILLENNIUM-PHARMACEUTICALS-INC - Millennium Pharmaceuticals, Inc. | — | — | 0 |
| AS26029US | SPARROWTECHNOLOGYSOLUTIONS - Sparrow Technology Solutions, LLC | — | — | 0 |
| AS26204US | ASN-CXA-RI-26204-CBS - Cox Communications Inc. | — | — | 0 |
| AS26273US | SKTH-AS - Sukatash | — | — | 0 |
| AS26384US | ALLEGHENYINTEL-CUM - Breezeline | — | — | 0 |
| AS26391US | REDGEAR - RedGear, LLC | — | — | 0 |
| AS26404US | ASN-INT - INT INC. | — | — | 0 |
| AS26482US | PING-ASN - Fusion, LLC | — | — | 0 |
| AS26590US | EFFORTLESS-OFFICE - Ascent Solutions | — | — | 0 |
| AS26684US | AS-GOOGLE-EDGE-INFRA - Google LLC | — | — | 0 |
| AS26690US | FINALSPAN-01 - Final Span LLC | — | — | 0 |
| AS26730US | MCC-CORE - Municipal Code Corporation | — | — | 0 |
| AS26752US | BAC-CFC-CW-BANK - Bank of America, National Association | — | — | 0 |
| AS26833US | ETCC - Electronic Transaction Consultants Corporation | — | — | 0 |
| AS26887US | ACSL-AS2 - American Century Services, LLC | — | — | 0 |
| AS26918US | LOOKOUT - Lookout, Inc. | — | — | 0 |
| AS26952US | CEVA-US-DC - CEVA LOGISTICS U.S., INC. | — | — | 0 |
| AS27039US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27068US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27083US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27097US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27105US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27119US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27123US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27144US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27150US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27153US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27262US | TVCCONNECT-AS - Breezeline | — | — | 0 |
| AS27269US | SNPS-DMZ - Synopsys Inc. | — | — | 0 |