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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,285 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,310 |
| 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.
32,244 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,356 |
| 1.3K |
| — |
| 5 |
| AS399408US | NUBROADWACA - COAXIAL NETWORKS INC | 1.3K | 1 | 5 |
| AS394451US | EHS-AS-001 - Elliot Health System | 1.3K | — | 2 |
| AS53706US | ARISE-VIRTUAL-SOLUTIONS-INC - Arise Virtual Solutions Inc. | 1.3K | — | 3 |
| AS19393US | ROBERTS-COMMUNICATIONS-NETWORK - Roberts Communications Network, LLC | 1.3K | — | 4 |
| AS33151US | TRUSTWAVE-ASN - Trustwave Holdings, Inc. | 1.3K | 65 | 7 |
| AS53897US | SYNOVUS-MOONRD - Synovus Financial Corp | 1.3K | — | 4 |
| AS46373US | CONCENTUSNET - Concentus.net | 1.3K | — | 5 |
| AS22034US | MCMNET - MCMASTER CARR SUPPLY COMPANY | 1.3K | — | 5 |
| AS48231US | CRENET-AS CRE Network, LLC | 1.3K | 1.8K | 13 |
| AS401912US | ASN-BVSD-01 - Boulder Valley School District (BVSD) | 1.3K | — | 5 |
| AS11661US | SEMICUBIC - Semicubic Systems LLC | 1.3K | 16 | 3 |
| AS32969US | GLOBAL-CASH-ACCESS - Everi Payments Inc. | 1.3K | — | 5 |
| AS10899US | CARIS LIFE SCIENCES - Caris Life Sciences | 1.3K | — | 4 |
| AS19917US | MOHEGANSUN - Mohegan Sun | 1.3K | — | 4 |
| AS33714US | HBCS-NC-AS1 - Hospital Billing and Collection Service, LTD | 1.3K | — | 2 |
| AS30346US | TBD - Sumitomo Mitsui Banking Corporation | 1.3K | — | 5 |
| AS399765US | FASNET-SERVICES - FasNET Services LLC | 1.3K | 320 | 6 |
| AS398491US | HYPEREXPERT - Hyper Expert, LLC | 1.3K | 8.2K | 7 |
| AS397860US | HIT - HANKINS INFORMATION TECHNOLOGY | 1.3K | — | 2 |
| AS395222US | HOSTIOUS PRIMARY - Hostious LLC | 1.3K | — | 5 |
| AS36539US | PEAK6 - Peak6 Group LLC | 1.3K | — | 4 |
| AS999US | CORIX-999 - CORIX NETWORKS | 1.3K | 65.6K | 21 |
| AS27220US | BGPGRID - BGP GRID Inc. | 1.3K | — | 2 |
| AS30114US | DECIMA-LLC - Decima LLC | 1.3K | 40 | 12 |
| AS63168US | TRP-COLORADO-SPRINGS - T. Rowe Price Associates, INC. | 1.3K | — | 5 |
| AS62656US | COZAQ - Cozaq | 1.3K | — | 2 |
| AS10946US | ASN-NTF - Network Time Foundation, Inc. | 1.3K | — | 2 |
| AS4539US | SEL-AS - Schweitzer Engineering Laboratories, Inc. | 1.3K | — | 2 |
| AS398196US | COBALT-RIDGE - Cobalt Ridge | 1.3K | — | 4 |
| AS395237US | CENTRIC-IS - CIS | 1.3K | — | 2 |
| AS46251US | THRIVE-E5 - InfoHedge Technologies, LLC | 1.3K | — | 2 |
| AS54159US | XETRANETWORKS - Xetra Networks Inc. | 1.3K | — | 4 |
| AS25985US | SYMBIOSYSTEMS - SymbioSystems LLC | 1.3K | — | 5 |
| AS39945US | NUSPIRE - Nuspire Communications | 1.3K | — | 4 |
| AS46742US | QTS-HIL - Quality Technology Services, LLC | 1.3K | 65.5K | 3 |
| AS22001US | INVITROGEN - Life Technologies Corp. | 1.3K | — | 4 |
| AS393650US | CCBCMD - CCBC | 1.3K | — | 2 |
| AS32776US | SMART-CITY-CHCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.3K | — | 3 |
| AS401304US | PROPEL-CLOUD-02 - PropelCLOUD | 1.3K | — | 3 |
| AS12167US | LIGHTWAVE-DALLAS - LightWave Networks | 1.3K | 3 | 7 |
| AS23204US | HMSA-ASNID - Hawaii Medical Service Association | 1.3K | — | 4 |
| AS394540US | NETJETS - NETJETS INC | 1.3K | — | 2 |
| AS32582US | 600AMPS - 600Amps Internet Services, Inc. | 1.3K | 4.1K | 4 |
| AS54430US | CRL-CORP - Clinical Reference Laboratory | 1.3K | — | 4 |
| AS36819US | MELALEUCA-INC - MELALEUCA INC. | 1.3K | — | 5 |
| AS20334US | EPICTOUCH-AS-1 - Epic Touch Co. | 1.3K | — | 5 |