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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. | 218.1M | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,220 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 256 |
| — |
| 1 |
| AS62469US | PLACEIQ - PLACEIQ, INC. | 256 | — | 1 |
| AS53299US | BETAFORWARD - BetaForward, Inc | 256 | 256 | 2 |
| AS23437US | INFINITY-FL - Infinity Broadband | 256 | 96 | 3 |
| AS398042US | IXPANSE - RTE Group, Inc. | 256 | — | 1 |
| AS30538US | PTG-INC - Panattoni Technology Group, INC. | 256 | — | 1 |
| AS398477US | VELO-VELVET-ASN-01 - Velo IT Group | 256 | — | 1 |
| AS62883US | SCCMHA-ASN - Saginaw County Community Mental Health Authority | 256 | 1 | 2 |
| AS395690US | LUXOFT-USA - Luxoft USA Inc | 256 | — | 1 |
| AS19313US | DATACOR - Datacor, Inc. | 256 | — | 1 |
| AS18792US | MEME - Meme Holdings LLC | 256 | 1 | 2 |
| AS401010US | BLUEGRASSBB - Bluegrass Broadband, LLC | 256 | — | 1 |
| AS26262US | RWIFI-AS01 - Circle City Internet | 256 | 256 | 2 |
| AS399739US | TSYS-EQUINIX-FR6 - Global Payments Inc. | 256 | — | 1 |
| AS20230US | CARRINGTON-MS-LLC-2007 - Carrington Mortgage Holdings, LLC | 256 | 1 | 2 |
| AS399876US | IEHP-AT - Inland Empire Health Plan | 256 | — | 1 |
| AS26200US | PSAM-ASN - P. Schoenfeld Asset Management, LLC | 256 | — | 1 |
| AS138938US | NTC-AS-INPE - NORTHERN TRUST CORPORATION | 256 | — | 1 |
| AS62475US | MANH-001 - Manhattan Associates, Inc. | 256 | — | 1 |
| AS398667US | MALWAREBYTES-NETWORK-HQ - Malwarebytes, Inc | 256 | — | 1 |
| AS23011US | CARRIERX-SD-01 - FreeConferenceCall.com | 256 | — | 1 |
| AS397947US | SAINT-LUKES-HOSPITAL-CHESTERFIELD - St. Luke's Hospital | 256 | — | 1 |
| AS402058US | QUANTUM-NETWORKS-US1 - QUANTUM | 256 | — | 1 |
| AS19983US | GTPL-AS-01 - Global Technology Partners LLC | 256 | — | 1 |
| AS402398US | CPAP - cpap.com | 256 | — | 1 |
| AS53436US | KIRKLAND-ELLIS-PH - Kirkland & Ellis LLP | 256 | — | 1 |
| AS19581US | GRAYCENTRALCAST - Gray Media, Inc. | 256 | — | 1 |
| AS402061US | NVRSLINE-AS - NVRS LINE inc. | 256 | 1 | 2 |
| AS14874US | PITTQIAO-US - PITTQIAO LLC | 256 | 512 | 3 |
| AS11462US | ARAMARK-CA-TORHQ - ARAMARK | 256 | — | 1 |
| AS399370US | KIRKLAND-ELLIS-SF - Kirkland & Ellis LLP | 256 | — | 1 |
| AS395160US | SWIFTTRAC - Jobsite Software, Inc. | 256 | — | 1 |
| AS395952US | MARKETLEADER - Constellation Web Solutions, Inc. | 256 | — | 1 |
| AS13317US | AS-WAN - Wan holdings LLC | 256 | 256 | 2 |
| AS400966US | CLOUDQUANT-01 - CloudQuant, LLC | 256 | — | 1 |
| AS11441US | FREDERICK-MEMORIAL-HOSPITAL - Frederick Memorial Healthcare System | 256 | — | 1 |
| AS394987US | SSC-AS1 - Southern States Cooperative, Inc. | 256 | — | 1 |
| AS393817US | LMC-BH - Lake Michigan College | 256 | — | 1 |
| AS401040US | LEGGETT-PLATT-INCORPORATED - Leggett & Platt, Incorporated | 256 | — | 1 |
| AS22928US | CMR1385 - CMR LLC | 256 | — | 1 |
| AS31830US | MURRAY-CALLOWAY-COUNTY-HOSPITAL - Murray-Calloway County Hospital | 256 | — | 1 |
| AS607US | RNM-15-ASN-01 - Revelation Network Management, Inc. | 256 | — | 1 |
| AS18977US | WIKTEL-VOICE - Wikstrom Telephone Company, Incorporated | 256 | — | 1 |
| AS22603US | SHARKBACKUP-DALLAS-03 - SharkBackup LLC | 256 | — | 1 |
| AS23124US | VEEAM-US2 - VEEAM SOFTWARE CORPORATION | 256 | — | 1 |
| AS36739US | COLLIER-COUNTY-GOVERNMENT-BCC - Collier County Government | 256 | — | 1 |
| AS397661US | PILLEN-OFFICE-01 - Pillen Family Farms, Inc. | 256 | — | 1 |