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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) | 227.7M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| 17.9K |
| — |
| 5 |
| AS33695US | SCALEMATRIX - ScaleMatrix | 17.9K | 4.1K | 32 |
| AS400633US | PRTC-MCKEE - Peoples Rural Telephone Cooperative Corporation, Inc. | 17.9K | — | 19 |
| AS397453US | MEEKER-01 - Meeker Cooperative Light & Power Association | 17.9K | 65.5K | 11 |
| AS21694US | FRESNOCOE - Fresno County Office of Education | 17.7K | 4.1K | 8 |
| AS13819US | FWIN-NET - INDIGITAL TELECOM | 17.7K | 65.5K | 9 |
| AS23467US | NEWRELIC-AS-1 - New Relic | 17.7K | 3 | 11 |
| AS1215US | ORACLE-NA-AS - Oracle Corporation | 17.7K | 1 | 4 |
| AS63062US | HUGHESNET-CDN - Hughes Network Systems, LLC | 17.7K | — | 36 |
| AS397369US | LVHN-INET-01 - LVHN | 17.7K | — | 7 |
| AS1218US | NCUBE-BELMONT-AS - Oracle Corporation | 17.7K | 27.2K | 42 |
| AS26269US | HAEFELETV - Haefele Connect | 17.7K | 4.1K | 30 |
| AS1399US | CHARLES-SCHWAB-2 - Charles Schwab & Co., Inc. | 17.7K | — | 4 |
| AS398719US | M-PULSEFIBER - M-Pulse Fiber, LLC | 17.7K | 65.5K | 29 |
| AS14277US | GIGSTREEM - GiGstreem | 17.7K | 6.1K | 39 |
| AS40281US | QWKNET - QWK.net Hosting, L.L.C. | 17.7K | 69.6K | 37 |
| AS22549US | TBDSL-01 - KUDUCOM | 17.7K | 3 | 8 |
| AS62738US | ZOCHNET1 - ZochNet | 17.7K | — | 41 |
| AS22427US | GNET-AS - GNET INC. | 17.4K | — | 68 |
| AS19366US | FDL-42 - Fibertown | 17.4K | — | 10 |
| AS399643US | COOKSONHILLS-CONNECT-21 - COOKSON HILLS CONNECT, LLC | 17.4K | — | 6 |
| AS40511US | FIRELINE - Fireline Network Solutions, Inc. | 17.4K | — | 34 |
| AS19233US | DIALOGIX - Dialogix Telecom | 17.4K | 1 | 21 |
| AS36413US | LOYOLA - Loyola University Maryland | 17.4K | — | 2 |
| AS32524US | GRUPO-SMS - Grupo-SMS USA, LLC | 17.4K | 65.5K | 68 |
| AS7926US | FICO - Fair Isaac and Company | 17.4K | — | 19 |
| AS12130US | BANDWIDTH-US - Bandwidth Inc. | 17.4K | — | 33 |
| AS23260US | SCI-AS - Midcontinent Communications | 17.4K | 65.5K | 10 |
| AS5783US | KCSOS-NET - Kern County Superintendent of Schools | 17.4K | — | 5 |
| AS10594US | CEC - Cutting Edge Communications, Inc. | 17.4K | — | 6 |
| AS33199US | ASN-AMHERSTCOMM-01 - Amherst Communications | 17.4K | — | 2 |
| AS398643US | SRU-ASN - Slippery Rock University of Pennsylvania | 17.4K | — | 6 |
| AS55106US | DATACATE-AS1 - Datacate Inc. | 17.4K | 4 | 33 |
| AS399639US | LAKELAND-COMMUNICATIONS - Lakeland Communications | 17.4K | 65.5K | 3 |
| AS1441US | 360-BROADBAND - 360 Broadband, LLC | 17.4K | — | 3 |
| AS55230US | PWRTC-AS - Pulaski White Rural Telephone Cooperative Inc. | 17.4K | 65.5K | 10 |
| AS46792US | PMU-PARAGOULD - Paragould Municipal Utilities | 17.4K | 65.5K | 6 |
| AS19955US | PINELAND-TELEPHONE - Pineland Telephone Cooperative, Inc. | 17.4K | — | 68 |
| AS4150US | SUPRANET-WIS - SupraNet Communications, Inc. | 17.4K | 65.8K | 11 |
| AS399629US | BLNWX - BL Networks | 17.4K | — | 68 |
| AS18704US | T-SYSTEMS-NA - T-Systems North America, Inc. | 17.4K | — | 7 |
| AS22472US | FLCOURTS - Florida Supreme Court | 17.4K | — | 5 |
| AS3745US | NTTDATA-SERVICES-AS2 - NTT DATA Services Holdings Corporation | 17.4K | — | 3 |
| AS31975US | SEWANEE - University of the South | 17.4K | — | 5 |
| AS46446US | CALTELCOM - California Telecom | 17.4K | — | 20 |
| AS39948US | INIT-PHX - Wi-Fiber, Inc. | 17.4K | — | 65 |
| AS14519US | APPLIEDI - Applied Innovations Corporation | 17.4K | — | 7 |