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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| PATHWARD - Pathward, N.A. |
| 768 |
| — |
| 3 |
| AS401572US | ALTERAHEALTH-ASN01 - Altera Digital Health Inc. | 768 | — | 3 |
| AS394046US | JWKFO - JELD WEN | 768 | — | 3 |
| AS396410US | CODE42-INCYDR - Code 42 Software | 768 | — | 2 |
| AS27232US | OOMA INC - OOMA ENTERPRISE - Ooma, Inc. | 768 | — | 3 |
| AS19771US | EMERGE-AS1 - Emerge Technologies LLC. | 768 | — | 3 |
| AS393245US | YAHOO-SWB - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS401605US | WEB-HOST-MOST-ASN-1 - Web Host Most, LLC | 768 | 2K | 5 |
| AS27548US | USAN-AS-A - United States Advanced Network Inc. | 768 | — | 3 |
| AS23067US | AS23067 - Orange County, Florida | 768 | — | 3 |
| AS40916US | EVALSE - Evalse, LLC | 768 | 3 | 6 |
| AS11247US | HONEYWELL-AEROSPACE - Honeywell International, Inc. | 768 | — | 3 |
| AS11679US | STIHL-204-124-67 - Stihl Inc. | 768 | — | 3 |
| AS12259US | EBOCOM - EBOCOM LLC | 768 | — | 3 |
| AS20429US | AS20429 - Guitar Center | 768 | — | 3 |
| AS62424US | MARRIOTT-EU STARWOOD HOTELS & RESORTS WORLDWIDE, LLC | 768 | 2 | 5 |
| AS393251US | FRANCIS-MARION-UNIVERSITY - Francis Marion University | 768 | — | 2 |
| AS30620US | CO-DATACENTER - APPLIED SYSTEMS, INC | 768 | — | 3 |
| AS22674US | SOUTHERNWINE - Southern Wine & Spirits of America, Inc. | 768 | — | 3 |
| AS20280US | CORPUS-CHRISTI-ISD-AS1 - Corpus Christi ISD | 768 | — | 2 |
| AS30644US | PATH-NETWORK-BYOIP - Path Network, Inc. | 768 | — | 3 |
| AS399682US | SJLL - Summit | 768 | — | 3 |
| AS11783US | BROOK-LAW - Brooklyn Law School | 768 | — | 2 |
| AS398964US | AVEVA-AMER - AVEVA Inc | 768 | — | 3 |
| AS54790US | SHARECARE - Sharecare, Inc. | 768 | — | 3 |
| AS398071US | ACSC1001 - Automobile Club of Southern California | 768 | — | 3 |
| AS32850US | CLARITEV-VA - Claritev Corporation | 768 | — | 3 |
| AS401700US | JOY-LABS-VENTURES - Joy Labs Ventures LLC | 768 | — | 2 |
| AS36667US | PHIBRO-ANIMAL-HEALTH-CORPORATION-ARIN - Phibro Animal Health Corporation | 768 | 18 | 6 |
| AS54370US | SKYWEST - SKYWEST AIRLINES, INC. | 768 | — | 3 |
| AS400733US | PDS-RW-ASN-01 - Pari Data Systems Inc. | 768 | — | 3 |
| AS29912US | CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation | 768 | — | 3 |
| AS400167US | NORTHERN-WIRELESS - Northern Wireless | 768 | 256 | 3 |
| AS395975US | DENTONCOAS-1 - Denton County, Texas | 768 | — | 3 |
| AS5US | SYMBOLICS - WFA Group LLC | 768 | — | 3 |
| AS40776US | TAONET - TaoNet | 768 | 12 | 15 |
| AS46385US | PNAP-SE3 - PhoenixNAP LLC | 768 | 257 | 5 |
| AS33026US | SHAKLEE1 - SHAKLEE CORPORATION | 768 | — | 3 |
| AS401706US | VALLEY-SMART-HOMES - Valley Smart Homes | 768 | 4.1K | 4 |
| AS25821US | PRISEDA-NET - Priseda LLC | 768 | — | 3 |
| AS399953US | METHOWNET-01 - Okanogan County Electric Cooperative, Inc. | 768 | — | 3 |
| AS395868US | FBISD-ASNONE - Fort Bend Independent School District | 768 | — | 3 |
| AS14924US | MERIT-AS-30 - Merit Network Inc. | 768 | — | 2 |
| AS395832US | IPRO-DA7 - IPro Media, Inc. | 768 | — | 3 |
| AS32526US | CATALYSTCLOUD - CatalystVM LLC | 768 | — | 3 |
| AS398422US | NAF-01 - Nexus Air Fiber, LLC | 768 | — | 3 |
| AS62614US | NETWOLVES-NETWORK-SERVICES - NetWolves Network Services LLC | 768 | — | 3 |