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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| RWS - Retailer Web Services LLC |
| — |
| — |
| 0 |
| AS54490US | OCA-AS - Olympus Corporation of the Americas | — | — | 0 |
| AS54517US | HIE-APPLICATION - Strata | — | — | 0 |
| AS62788US | AMBIENTHLLC - Ambivalent Enthusiast LLC | — | — | 0 |
| AS62499US | DECIX-DFW-AS - DE-CIX North America Inc. | — | — | 0 |
| AS54727US | TEL-NEWORKS-USA - Tel-Networks USA, LLC | — | — | 0 |
| AS55041US | SNAP-INTERACTIVE - 20-3191847 | — | — | 0 |
| AS55031US | DATADOG - Datadog, Inc. | — | — | 0 |
| AS397629US | CLOUD-9-SOLUTIONS - Cloud 9 Solutions | — | — | 0 |
| AS214964US | Areg-Zaratsyan Areg Zaratsyan | — | — | 0 |
| AS63231US | LUMIA-SEC - Lumia Security | — | — | 0 |
| AS210883US | AQUASYS Aquasys, LLC | — | — | 0 |
| AS132128US | CTL-AS-AP - CommScope Technologies LLC | — | — | 0 |
| AS138918US | NTC-AS-SYD - Northern Trust Corporation | — | — | 0 |
| AS394929US | NAES-ASN - NAES Corp | — | — | 0 |
| AS397869US | ADSUPPLY - AdSupply, Inc. | — | — | 0 |
| AS397673US | AHELIOTECH - AHELIOTECH | — | — | 0 |
| AS397576US | MGS-EXIT-HUB - MIC GLOBAL SERVICES, LLC | — | — | 0 |
| AS62719US | AS-PCNET-ORL - Corserva, Inc. | — | — | 0 |
| AS397204US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397175US | ITDATA-01 - ITDATA GURU | — | — | 0 |
| AS399047US | GIGAPOINTE - L.I. Combs Management Corp. | — | — | 0 |
| AS397403US | CFSB-TOP-01 - Capitol Federal Savings Bank | — | — | 0 |
| AS398708US | OFFICERING - OFFICERING LLC | — | — | 0 |
| AS398689US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398511US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398575US | MICROSOFT-AZURE-ORBITAL - Microsoft Corporation | — | — | 0 |
| AS395867US | DSAC - Dassault Systemes Americas Corp. | — | — | 0 |
| AS394639US | GOOGLE - Google LLC | — | — | 0 |
| AS395232US | NEAXCOMM-NY - Nexacomm, LLC | — | — | 0 |
| AS394849US | MSUBILLINGS - Montana State University - Billings | — | — | 0 |
| AS395082US | BODIS-NJ - Bodis, LLC | — | — | 0 |
| AS393807US | AS-INTULSE-VA - Intulse, Ltd | — | — | 0 |
| AS393884US | VL-135 - Zenlayer Inc | — | — | 0 |
| AS393672US | NTHRIVE-ASN03 - Finthrive, Inc. | — | — | 0 |
| AS393648US | ACTON-SOFTWARE - Act-On Software | — | — | 0 |
| AS393699US | OWNED-NETWORKS - Owned-Networks LLC | — | — | 0 |
| AS394937US | ATC - Windstream Communications LLC | — | — | 0 |
| AS1525US | DNIC-ASBLK-01522-01526 - Headquarters, USAISC | — | — | 0 |
| AS394007US | GE-PREDIX - General Electric Company | — | — | 0 |
| AS394243US | PRODEGE-AS - Prodege LLC | — | — | 0 |
| AS394371US | CCM-NET2 - Collectivei | — | — | 0 |
| AS64468US | CSML-14-64468 - Summit Securities Group LLC | — | — | 0 |
| AS64219US | MEGAPORTUSAINC-SEAIX-US - Megaport (USA) Inc. | — | — | 0 |
| AS63323US | CAPTIONCALL - CaptionCall | — | — | 0 |
| AS394063US | AMHERST-H-WILDER-FOUNDATION - Amherst H. Wilder Foundation | — | — | 0 |
| AS63026US | DP-ASN - DartPoints LLC | — | — | 0 |