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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 | 24,749 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,226 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 | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| 17.2K |
| 524.3K |
| 37 |
| AS54535US | NIKEUS-NV - Nike, Inc. | 17.2K | — | 46 |
| AS14315US | 1GSERVERS - 1GSERVERS, LLC | 17.2K | 655.4K | 61 |
| AS400238US | PIEG-01 - PIE&G | 17.2K | 4.1K | 44 |
| AS14733US | AS14733 - Barclays Capital Inc. | 17.2K | — | 47 |
| AS398913US | NTSPARK - NT Spark, LLC | 17.2K | 65.5K | 31 |
| AS31975US | SEWANEE - University of the South | 17.2K | — | 4 |
| AS32869US | SILVERSTAR-NET - Silver Star Telecom, LLC | 17.2K | — | 13 |
| AS40675US | PROQUEST - PROQUEST, LLC | 17.2K | — | 4 |
| AS4150US | SUPRANET-WIS - SupraNet Communications, Inc. | 17.4K | 65.8K | 11 |
| AS23260US | SCI-AS - Midcontinent Communications | 17.4K | 65.5K | 10 |
| AS19233US | DIALOGIX - Dialogix Telecom | 17.4K | 1 | 21 |
| AS399468US | EG-CORE-INFRA - EngineFresh LLC | 17.4K | — | 17 |
| AS3745US | NTTDATA-SERVICES-AS2 - NTT DATA Services Holdings Corporation | 17.4K | — | 3 |
| AS55106US | DATACATE-AS1 - Datacate Inc. | 17.4K | 4 | 33 |
| AS33199US | ASN-AMHERSTCOMM-01 - Amherst Communications | 17.4K | — | 2 |
| AS1441US | 360-BROADBAND - 360 Broadband, LLC | 17.4K | — | 3 |
| AS399629US | BLNWX - BL Networks | 17.4K | — | 68 |
| AS39948US | INIT-PHX - Wi-Fiber, Inc. | 17.4K | — | 65 |
| AS19366US | FDL-42 - Fibertown | 17.4K | — | 10 |
| AS398643US | SRU-ASN - Slippery Rock University of Pennsylvania | 17.4K | — | 6 |
| AS36813US | HCC-IL - Hamilton County Communications, Inc | 17.4K | 66.6K | 13 |
| AS399643US | COOKSONHILLS-CONNECT-21 - COOKSON HILLS CONNECT, LLC | 17.4K | — | 6 |
| AS14519US | APPLIEDI - Applied Innovations Corporation | 17.4K | — | 7 |
| AS40511US | FIRELINE - Fireline Network Solutions, Inc. | 17.4K | — | 34 |
| AS26407US | CAROLINA-DIGITAL-PHONE - Carolina Digital Phone, Inc. | 17.4K | — | 3 |
| AS19955US | PINELAND-TELEPHONE - Pineland Telephone Cooperative, Inc. | 17.4K | — | 68 |
| AS10594US | CEC - Cutting Edge Communications, Inc. | 17.4K | — | 6 |
| AS5783US | KCSOS-NET - Kern County Superintendent of Schools | 17.4K | — | 5 |
| AS55230US | PWRTC-AS - Pulaski White Rural Telephone Cooperative Inc. | 17.4K | 65.5K | 10 |
| AS36413US | LOYOLA - Loyola University Maryland | 17.4K | — | 2 |
| AS399639US | LAKELAND-COMMUNICATIONS - Lakeland Communications | 17.4K | 65.5K | 3 |
| AS12130US | BANDWIDTH-US - Bandwidth Inc. | 17.4K | — | 33 |
| AS46792US | PMU-PARAGOULD - Paragould Municipal Utilities | 17.4K | 65.5K | 6 |
| AS7926US | FICO - Fair Isaac and Company | 17.4K | — | 19 |
| AS394303US | BIGSCOOTS - BigScoots | 17.4K | — | 12 |
| AS18704US | T-SYSTEMS-NA - T-Systems North America, Inc. | 17.4K | — | 7 |
| AS46446US | CALTELCOM - California Telecom | 17.4K | — | 20 |
| AS22472US | FLCOURTS - Florida Supreme Court | 17.4K | — | 5 |
| AS14277US | GIGSTREEM - GiGstreem | 17.7K | 6.1K | 39 |
| AS1215US | ORACLE-NA-AS - Oracle Corporation | 17.7K | 1 | 4 |
| AS62738US | ZOCHNET1 - ZochNet | 17.7K | — | 41 |
| AS63062US | HUGHESNET-CDN - Hughes Network Systems, LLC | 17.7K | — | 36 |
| AS26269US | HAEFELETV - Haefele Connect | 17.7K | 4.1K | 30 |
| AS398719US | M-PULSEFIBER - M-Pulse Fiber, LLC | 17.7K | 65.5K | 29 |
| AS40281US | QWKNET - QWK.net Hosting, L.L.C. | 17.7K | 69.6K | 37 |
| AS32524US | GRUPO-SMS - Grupo-SMS USA, LLC | 17.7K | 65.5K | 69 |