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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 |
| 1.3K |
| — |
| 2 |
| AS32969US | GLOBAL-CASH-ACCESS - Everi Payments Inc. | 1.3K | — | 5 |
| AS216093US | SERVERGUARD Root Localhost LLC | 1.3K | 4 | 9 |
| AS400456US | DREAMWIRE - ITDreamwire | 1.3K | — | 2 |
| AS19747US | DATAVAIL-ASN - Datavail | 1.3K | 18 | 7 |
| AS394099US | DECORAH-METRONET - Decorah MetroNet | 1.3K | 65.5K | 4 |
| AS30114US | DECIMA-LLC - Decima LLC | 1.3K | 40 | 12 |
| AS54531US | LPCH-PA - LUCILE SALTER PACKARD CHILDREN'S HOSPITAL AT STANFORD | 1.3K | — | 2 |
| AS10946US | ASN-NTF - Network Time Foundation, Inc. | 1.3K | — | 2 |
| AS216174US | ASN-SNL Spearware Networks LLC | 1.3K | 273 | 8 |
| AS63168US | TRP-COLORADO-SPRINGS - T. Rowe Price Associates, INC. | 1.3K | — | 5 |
| AS62659US | Q2HOLDINGS - Q2 Software, Inc. | 1.3K | — | 5 |
| AS27223US | LOATHING - Bare Metal Hosting | 1.3K | — | 2 |
| AS399640US | DIGITAL-BLVD-01 - Digital Boulevard | 1.3K | — | 2 |
| AS400807US | BMU-GW-01 - BRYAN MUNICIPAL UTILITIES | 1.3K | — | 5 |
| AS398491US | HYPEREXPERT - Hyper Expert, LLC | 1.3K | 8.2K | 7 |
| AS18693US | UCH-CENTRAL - University of Colorado Hospital | 1.3K | — | 4 |
| AS4539US | SEL-AS - Schweitzer Engineering Laboratories, Inc. | 1.3K | — | 2 |
| AS46340US | HR2 - HireRight LLC | 1.3K | — | 5 |
| AS29727US | ARCKANET - ARCKANET | 1.3K | 512 | 7 |
| AS20066US | MSC-SJ-HQ - Supermicro Computer | 1.3K | — | 5 |
| AS23204US | HMSA-ASNID - Hawaii Medical Service Association | 1.3K | — | 4 |
| AS19208US | INFINITE-CAMPUS-NV - Infinite Campus, Incorporated | 1.3K | — | 2 |
| AS30284US | CITIGROUP-BANAMEX - Citigroup Inc. | 1.3K | — | 5 |
| AS17178US | MOTIONINDUSTRIES - Motion Industries, Inc. | 1.3K | — | 5 |
| AS55171US | MTS-HEALTHCARE - MTS Healthcare | 1.3K | — | 4 |
| AS36593US | ASPEN-SMART-NETWORKS - Aspen Wireless Technologies Inc | 1.3K | — | 3 |
| AS33151US | TRUSTWAVE-ASN - Trustwave Holdings, Inc. | 1.3K | 65 | 7 |
| AS63061US | CARLSONWAGONLITTRAVEL - CWT US, LLC | 1.3K | 1 | 4 |
| AS16925US | COSMB-MAIN-NET-00 - Cloud Optimized SMB LLC | 1.3K | 4.7K | 10 |
| AS27527US | HTFCU-AS - Heritage Trust Federal Credit Union | 1.3K | — | 2 |
| AS10899US | CARIS LIFE SCIENCES - Caris Life Sciences | 1.3K | — | 4 |
| AS12167US | LIGHTWAVE-DALLAS - LightWave Networks | 1.3K | 3 | 7 |
| AS22034US | MCMNET - MCMASTER CARR SUPPLY COMPANY | 1.3K | — | 5 |
| AS36819US | MELALEUCA-INC - MELALEUCA INC. | 1.3K | — | 5 |
| AS401304US | PROPEL-CLOUD-02 - PropelCLOUD | 1.3K | — | 3 |
| AS54963US | LUMENET - Lume Technologies Inc. | 1.3K | — | 3 |
| AS36629US | MGTLD - VeriSign Global Registry Services | 1.3K | 4 | 9 |
| AS18789US | NETMLH-AS - Main Line Health, Inc. | 1.3K | — | 2 |
| AS18974US | TRULIANT-1 - Truliant Federal Credit Union | 1.3K | — | 4 |
| AS18527US | HAGC-ASN - UC Health, LLC | 1.3K | — | 5 |
| AS14850US | PACE-SUBURBAN-BUS - PACE, the suburban bus division of the Region Transportation Authority | 1.3K | — | 2 |
| AS6517US | LAKENETWORKS-AS - LAKENETWORKS | 1.3K | 76.4K | 22 |
| AS399522US | TP - The Producers, Inc. | 1.3K | 256 | 5 |
| AS22139US | MARIN-COUNTY-01 - County of Marin | 1.3K | — | 3 |
| AS17366US | ARINCASN - ARINC INCORPORATED | 1.3K | — | 5 |
| AS190US | DNIC-AS-00190 - Navy Network Information Center (NNIC) | 1.3K | — | 5 |