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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 | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| 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.
32,247 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. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| — |
| — |
| 0 |
| AS40152US | UTAHIO - Utah.io | — | — | 0 |
| AS40195US | LIQUIDNET-02 - LIQUIDNET HOLDINGS INC. | — | — | 0 |
| AS40261US | AS-MERCED1 - Merced Systems, Inc. | — | — | 0 |
| AS40354US | LOCKTONKC-INTERNET - Lockton Companies | — | — | 0 |
| AS40486US | FVC-15-ASN - Florida Virtual Campus | — | — | 0 |
| AS40544US | PARADOXNETWORKS-INC - ParadoxNetworks, Inc | — | — | 0 |
| AS40609US | KOFC - Knights of Columbus | — | — | 0 |
| AS40612US | SWITCHFLY-40612-AS - Switchfly | — | — | 0 |
| AS40647US | VGRS-AC25 - VeriSign Global Registry Services | — | — | 0 |
| AS40649US | WEAREHERE - Arrival Telecom, Inc. | — | — | 0 |
| AS40654US | TKC-KM-ASN01 - Catawba Two Kings Casino | — | — | 0 |
| AS40871US | EXIGO-OFFICE - Exigo Office, INC | — | — | 0 |
| AS44614US | YASH Yashdeep Sahota | — | — | 0 |
| AS46144US | RLI-INS-AS001 - RLI Insurance | — | — | 0 |
| AS46272US | GRIDPOINT - GridPoint, Inc. | — | — | 0 |
| AS46302US | CRYSTALGEYSER - Crystal Geyser Water Company | — | — | 0 |
| AS46495US | UHAUL-INC-2 - UHAUL INTERNATIONAL, INC. | — | — | 0 |
| AS46750US | STANFORD-INTERNET-ACCESS2 - Stanford University | — | — | 0 |
| AS46768US | INDATA-CORPORATION - inData Corporation | — | — | 0 |
| AS46923US | PROFICIO - Proficio Inc | — | — | 0 |
| AS46937US | NN-DUKE - Northern Neck Wireless Internet Services LLC | — | — | 0 |
| AS46967US | IPFBASN - IPFB LLC | — | — | 0 |
| AS47014US | UKPC-V1 - The Northern Trust Company | — | — | 0 |
| AS47088US | DF-AS - Digital Fortress, Inc. | — | — | 0 |
| AS48606US | V6BROKER-AS SYSTEM36 LLC | — | — | 0 |
| AS53303US | SERVICENOW-ATG - SERVICENOW, INC. | — | — | 0 |
| AS53308US | RISE-TX-TWLT-AS53308 - JAB Wireless, INC. | — | — | 0 |
| AS53400US | DBRIN - GTT Americas, LLC | — | — | 0 |
| AS53453US | IOL-ASN - Ironsides Operations, LLC | — | — | 0 |
| AS53518US | ISC-F-SJU1 - Internet Systems Consortium, Inc. | — | — | 0 |
| AS53612US | EMM-ASN - EMM Consulting, LLC | — | — | 0 |
| AS53702US | GROUPON-CHI - Groupon, Inc. | — | — | 0 |
| AS53728US | FAST-PC-NETWORKS-CORPORATION - Fast PC Networks Corporation | — | — | 0 |
| AS53968US | PVA-MN - Paralyzed Veterans of America | — | — | 0 |
| AS54031US | BV-BROWNRICE-IPS - BannerView.com | — | — | 0 |
| AS54105US | SSM-NET - Second Street | — | — | 0 |
| AS54147US | ULTIMATEMEDICALACADEMY-AS - UMA Education, Inc. | — | — | 0 |
| AS54152US | BSC-BRANCHOFFICE01 - Blue Shield of California | — | — | 0 |
| AS54162US | AURORA-ASN - Aurora University | — | — | 0 |
| AS54234US | MISSION - Mississippi Institutions of Higher Learning | — | — | 0 |
| AS54258US | CORPORATE - BMC Group Inc. | — | — | 0 |
| AS54276US | AUNALYTICSAS2 - Aunalytics, Inc | — | — | 0 |
| AS54400US | AS-GCHQ01 - General Conference of Seventh-day Adventists | — | — | 0 |
| AS54462US | SAP-DC - Callidus Software Inc. | — | — | 0 |
| AS54484US | GC-IPBACKHAUL-LA - A+ Wireless, Inc. | — | — | 0 |
| AS54543US | EPICUP-COM - EpicUp Holdings Inc | — | — | 0 |