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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 | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 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. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| 5.6K |
| 1 |
| 23 |
| AS11840US | VGRS-REGISTRY-AS - VeriSign Infrastructure & Operations | 5.6K | 10 | 32 |
| AS11590US | CUMBERLAND-TECH - Cumberland Technologies International | 5.6K | — | 22 |
| AS26685US | FRK-SMO - Franklin Resources | 5.6K | — | 15 |
| AS46454US | AS1 - WCS | 5.6K | — | 20 |
| AS47038US | DMCI-BROADBAND - DMCI Broadband, LLC. | 5.6K | — | 3 |
| AS46401US | OMNISYNC-NETWORKS - OmniSync Networks | 5.6K | — | 20 |
| AS395592US | ERI-CANADA - Ericsson Inc. | 5.6K | 3 | 20 |
| AS16851US | NEBRASKALINK - NebraskaLink | 5.6K | 65.5K | 9 |
| AS15154US | SBBSNET - Network Services Group | 5.6K | 65.5K | 5 |
| AS27385US | QUALYS - QUALYS, Inc. | 5.6K | 8 | 30 |
| AS6210US | NFL1 - National Football League | 5.6K | — | 4 |
| AS21734US | TRADINGTECH-TTNET - Trading Technologies Intl, Inc. | 5.6K | — | 22 |
| AS22937US | SHELDON-AS-1 - ACT USA | 5.6K | 65.5K | 7 |
| AS46785US | QUASAR-DATA-CENTER - QUASAR DATA CENTER, LTD. | 5.6K | — | 7 |
| AS23422US | ECL-1 - Endstream Communications, LLC | 5.6K | 65.5K | 16 |
| AS30148US | SUCURI-SEC - Sucuri | 5.6K | 20 | 29 |
| AS26654US | RFA-IDC - Richard Fleischman & Assoc., Inc. | 5.6K | — | 9 |
| AS998US | HYPESTATUS - HypeStatus Inc | 5.9K | 4.1K | 10 |
| AS13427US | SOFTCOM - Softcom Internet Communications, Inc. | 5.9K | 65.5K | 6 |
| AS20347US | GFN-US - Nvidia Corporation | 5.9K | — | 23 |
| AS25733US | LEAR - Lear Corporation (LEA) | 5.9K | — | 8 |
| AS7247US | MOJO - Mojo Networks | 5.9K | 257 | 10 |
| AS14991US | IL2K - ElkhartNet, Inc | 5.9K | — | 6 |
| AS11609US | ELAVON - ELAVON | 5.9K | — | 16 |
| AS989US | ANAXA3-ASN - ASPnix | 5.9K | 1 | 24 |
| AS4136US | QTS - Quality Technology Services, LLC | 5.9K | 65.5K | 6 |
| AS33US | HPINC - HP Inc. | 5.9K | — | 9 |
| AS395855US | ACSKYWAYS - AC Skyways | 5.9K | — | 13 |
| AS16841US | GBLIT-ASN1 - GLOBAL IT | 5.9K | — | 14 |
| AS30456US | COSMIC - Cosmic Global Networks | 5.9K | 65.5K | 24 |
| AS54241US | BOLT-INTERNET - Midvale Telephone Exchange, Incorporated | 5.9K | 65.5K | 9 |
| AS6998US | BRITEVOICE - Concentrix CVG Brite Voice Systems LLC | 5.9K | — | 12 |
| AS4282US | CENTURYLINK-TSDS-FLFTMY - CenturyLink Communications, LLC | 5.9K | — | 4 |
| AS30072US | WESTEX-AS1 - Wes-Tex Telecommunications LTD | 5.9K | — | 4 |
| AS397031US | GALAXYGATE - GALAXYGATE, LLC | 5.9K | 2.1K | 20 |
| AS400696US | MIBURA-1 - MIBURA, INC. | 5.9K | 458.8K | 40 |
| AS62712US | STATEHAWAII - State of Hawaii | 5.9K | — | 9 |
| AS16403US | BOISE-CASCADE - Boise Cascade Corporation | 5.9K | — | 8 |
| AS32022US | CHC-AS - Children's Hospital Colorado | 5.9K | — | 8 |
| AS33293US | BROADVOICE-LAX - SYNDEO LLC | 5.9K | — | 9 |
| AS3791US | ASCENSION-KSWIC - Ascension Technologies | 5.9K | — | 23 |
| AS32695US | WHITE-RIVER-CONNECT - White River Connect | 5.9K | 73.7K | 12 |
| AS11738US | BLIP-NETWORKS - BLIP Networks | 5.9K | 65.5K | 10 |
| AS16612US | NEIT-AS1 - NEIT Services, LLC | 5.9K | 65.5K | 8 |
| AS395341US | WCT-16 - White Cloud Technologies LLC | 5.9K | — | 12 |
| AS4310US | SCC-FL-EDU - Seminole State College of Florida | 5.9K | — | 8 |