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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 |
| — |
| — |
| 0 |
| AS7267US | GLOBALCOMMERCE - Global Commerce Link, LLC | — | — | 0 |
| AS7130US | THEMALL - Internet in a Mall, Inc | — | — | 0 |
| AS7161US | CENTURYLINK-QC-MOE-WYOMING - CenturyLink Communications, LLC | — | — | 0 |
| AS7092US | ICIGAMES - INTERACTIVE CREATIONS INC. | — | — | 0 |
| AS401106US | TECHIES365 - Techies365 | — | 3 | 3 |
| AS8170US | MICROAGE - MicroAge Computer Centers, Inc. | — | — | 0 |
| AS10603US | TYPEHOUSE-GROUP - Typehouse Group | — | — | 0 |
| AS10335US | RELAYTECH - Relay Technology, Inc | — | — | 0 |
| AS10305US | VERINET - Verinet Communications, Inc. | — | — | 0 |
| AS8098US | IFN - Internet Financial Group | — | — | 0 |
| AS7814US | CNS-NETWORK - Chenango Net Services | — | — | 0 |
| AS8064US | UABMC - University of Alabama at Birmingham Medical Center | — | — | 0 |
| AS139242US | CSL-AS-AP - Cloudflare Sydney, LLC | — | 2 | 2 |
| AS5636US | LISTING - NetWork Access | — | — | 0 |
| AS6073US | ETI - KAPS, Inc | — | — | 0 |
| AS5919US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5912US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5710US | NBTBA-ASN - NBT BANCORP INC. | — | — | 0 |
| AS5754US | PIXINET1 - Pacific Information Exchange, Inc. | — | — | 0 |
| AS5701US | HEALTH-ONE - HealthOne | — | — | 0 |
| AS17045US | NGA911-CALI-A - NGA 911 | — | 6 | 2 |
| AS6427US | HURRICANE-ELEC - Hurricane Electric LLC | — | — | 0 |
| AS212716US | ISC-LWO1 Internet Systems Consortium Inc. | — | — | 0 |
| AS4312US | FYI - FYI Networks | — | — | 0 |
| AS4291US | CENTURYLINK-QC-MOE-HELENA - CenturyLink Communications, LLC | — | — | 0 |
| AS4156US | USDA-1 - USDA | — | — | 0 |
| AS4183US | UUNET-MCIWCOM - Verizon Business | — | — | 0 |
| AS4112US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS401647US | FRO - Fro LLC | — | 4.1K | 1 |
| AS133902US | EA-NON-AS-AP - Electronic Arts | — | — | 0 |
| AS393691US | FORUM-FARGO-NOC - Forum Communications Company | — | — | 0 |
| AS393480US | KALTURA - Kaltura Inc | — | — | 0 |
| AS393346US | NJ-COLL-INET - City National Bank | — | — | 0 |
| AS198963US | LANGE-AS Colten Lange | — | — | 0 |
| AS7171US | EA-ONLINE-DC13 - Electronic Arts, Inc. | — | — | 0 |
| AS149302US | EAAPPL-AS-AP - Electronic Arts Inc. | — | — | 0 |
| AS216124US | C-RAM-AS C-Ram Inc. | — | 256 | 1 |
| AS394753US | TELCOM-SUPPLY - Highline Services, LLC | — | — | 0 |
| AS395042US | ACTIVECAMPAIGN - ActiveCampaign, Inc. | — | — | 0 |
| AS394906US | PTI-SANDPOINTDC - PROTELLIGENT, INC. | — | — | 0 |
| AS218789US | Soundvia-ASN Soundvia LLC | — | 20 | 5 |
| AS64216US | MEGAPORTUSAINC-IADIX-US - Megaport (USA) Inc. | — | — | 0 |
| AS46464US | NB-PRIMARY-01 - Nybbles and Bytes Studios, LLC | — | 1 | 1 |
| AS394416US | AVANADE - Avanade Inc | — | — | 0 |
| AS200360US | FOLF-SYSTEMS-AS Cooper Greer | — | 22 | 4 |
| AS62481US | TRUIST-ASN-62481 - Truist Financial Corporation | — | — | 0 |