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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 21,017 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,219 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 228 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,585 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,932 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,534 |
| 5.1K |
| — |
| 20 |
| AS14496US | AGILENT-COS - Agilent Technologies, Inc. | 5.1K | — | 20 |
| AS32385US | INTELEPEER-US-BACKBONE - IntelePeer, Inc. | 5.1K | — | 13 |
| AS393568US | ITT-CORPORATION - ITT Corporation | 5.1K | — | 13 |
| AS53301US | RADIOLINKINTERNET - Radio Link Internet | 5.1K | — | 4 |
| AS543US | HP-POLY - HP Inc. | 5.1K | — | 5 |
| AS11178US | RS-ACCESSPLUS - AccessPlus | 5.1K | 66.6K | 22 |
| AS21908US | FAMILY-VIDEO-INTERNET - Family Video Movie Club Inc. | 5.1K | — | 20 |
| AS15121US | CALTEL-COM - Calaveras Internet Company | 5.1K | 65.5K | 18 |
| AS395717US | BLUEARCHIVE-ZONE-1 - Wasabi Technologies, Inc. | 5.1K | — | 20 |
| AS19578US | TRUENET-INC - Truenet, Inc. | 5.1K | — | 2 |
| AS395652US | COUNTYOFBERGEN - County of Bergen | 5.1K | — | 6 |
| AS30491US | CROWELLP - Crowe LLP | 5.1K | — | 20 |
| AS39938US | RCW - River Canyon Wireless | 5.1K | — | 20 |
| AS22881US | USBANCORP-2 - U.S. BANCORP | 5.1K | — | 6 |
| AS40841US | MARKETAXESS-INC-AS - MARKETAXESS HOLDINGS, INC. | 5.1K | — | 15 |
| AS21549US | IRON-MOUNTAIN - Iron Mountain Inc | 5K | — | 16 |
| AS30415US | SCG-BGP01 - Sarasota County Government | 4.9K | — | 5 |
| AS395266US | KEYSIGHT-TECHNOLOGIES - Keysight Technologies, Inc | 4.9K | 6 | 26 |
| AS401776US | AS-CUSTOMER - IDC Cube | 4.9K | 12.6M | 43 |
| AS14333US | ORI-NET - On-Ramp Indiana, Inc. (ORI.NET) | 4.9K | 4 | 8 |
| AS394869US | APNC - Asia Pacific Network Corporation | 4.9K | — | 19 |
| AS11698US | WIATEL - WESTERN IOWA TELEPHONE ASSOCIATION (A COOPERATIVE) | 4.9K | 65.5K | 5 |
| AS62958US | ADT-LLC - ADT LLC | 4.9K | — | 19 |
| AS26052US | ABN-AMRO-CLEARING-USA-LLC - Fortis Clearing Chicago LLC | 4.9K | — | 4 |
| AS11228US | ARINC - ARINC INCORPORATED | 4.9K | 257 | 14 |
| AS14762US | AMGEN - AMGEN, Inc. | 4.9K | — | 16 |
| AS21678US | NEW-BREED - XPO Supply Chain, Inc. | 4.9K | — | 15 |
| AS1757US | LEXIS-AS - RELX inc. | 4.9K | — | 16 |
| AS54300US | LIGHTSPEED-VOICE - Lightspeed Voice | 4.9K | — | 15 |
| AS26001US | BLUIP - BLUIP INC | 4.9K | — | 9 |
| AS10975US | NET-AIG - American International Group Data Center, Inc. | 4.9K | 4 | 19 |
| AS1733US | DISACENT-NIPR-ASN - United States Department of Defense (DoD) | 4.9K | 3 | 14 |
| AS40393US | CROSSLINKNETWORKS - Crosslink Networks LLC | 4.9K | — | 16 |
| AS26153US | BCBSSC - Blue Cross Blue Shield of South Carolina | 4.9K | — | 7 |
| AS54053US | REALOGY-DDC - Realogy Group LLC | 4.9K | — | 19 |
| AS26120US | RHYTHMONE - RhythmOne, LLC | 4.9K | 1 | 4 |
| AS400856US | HILLENBRAND-INC - Hillenbrand, Inc. | 4.9K | 256 | 5 |
| AS13443US | LINKEDIN - LinkedIn Corporation | 4.9K | 505 | 79 |
| AS397388US | BBTC-ALASKA - Bristol Bay Telephone | 4.9K | 65.5K | 4 |
| AS36231US | TEMPEST-HOSTING - Tempest Hosting, LLC | 4.9K | 65.6K | 40 |
| AS26385US | THE-UNIVERSITY-OF-VERMONT-MEDICAL-CENTER-1 - The University of Vermont Medical Center Inc | 4.9K | — | 19 |
| AS395747US | CLOUDFLARENET-SFO05 - Cloudflare, Inc. | 4.9K | 22 | 41 |
| AS22220US | EACOMARTS - Electronic Arts, Inc. | 4.9K | — | 5 |
| AS11758US | IRISNETWORKS - IRIS Networks | 4.9K | 65.5K | 6 |
| AS14616US | IVANET-AMSTERDAM - IBASIS INC. | 4.9K | 256 | 17 |
| AS46997US | NATOLAB - Black Mesa Corporation | 4.9K | 1.2K | 39 |