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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. | 218.2M | 25,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 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.
32,232 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 | 51.6M | 3,897 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,005 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 512 |
| — |
| 2 |
| AS62740US | TBKBANK - TBK Bank, SSB | 512 | — | 2 |
| AS46895US | CSGN - CSG Systems Inc. | 512 | — | 2 |
| AS400918US | TWOROCKLAN - Two Rock LAN | 512 | — | 2 |
| AS7818US | ASN-QUEENCREEK - Town of Queen Creek | 512 | — | 2 |
| AS30508US | TXDPS - Texas Department of Public Safety | 512 | — | 2 |
| AS400835US | MIDD-ASN-01 - Middleby Corp | 512 | — | 2 |
| AS400555US | ISOGRAM - Isogram, LLC | 512 | 65.5K | 3 |
| AS401859US | D3VUR - D3VUR LLC | 512 | 1 | 3 |
| AS400114US | APOG-RBC - Apogee Telecom Inc. | 512 | — | 2 |
| AS27459US | AXOSBANK-AS - AXOS BANK | 512 | — | 2 |
| AS396205US | ALTRUISTA - Altruista Health, Inc | 512 | — | 2 |
| AS25735US | SLOTH-NET - Sloth Networks | 512 | 256 | 3 |
| AS395452US | SFPS - SFPS | 512 | — | 2 |
| AS398837US | HOPE - Hope Enterprise Corporation | 512 | 257 | 4 |
| AS13978US | WHBE-OLYMPIA - Washington Health Benefit Exchange | 512 | — | 2 |
| AS400227US | INTERACTIVE-BROKERS-CORP - Interactive Brokers Corp | 512 | — | 2 |
| AS63329US | MARCUM-LLP - Marcum LLP | 512 | — | 2 |
| AS7448US | CHOICE-HOTELS - Choice Hotels International, Inc. | 512 | — | 2 |
| AS402123US | UNMTA-AS-01 - UNMTA LLC | 512 | 256 | 3 |
| AS31752US | HEI-30-31752 - Heartland Express, Inc. of Iowa | 512 | — | 2 |
| AS19542US | PLICO - Protective Life Corporation | 512 | — | 2 |
| AS398074US | SN-COLL-DIA - City National Bank | 512 | — | 2 |
| AS393322US | CALERO - Calero MDSL | 512 | — | 1 |
| AS18812US | NEWWAVECOMM - New Wave Communications | 512 | — | 2 |
| AS394427US | ZOICSTUDIOS - Zoic Studios | 512 | — | 2 |
| AS62647US | GFFCU - Grow Financial Federal Credit Union | 512 | — | 2 |
| AS31823US | ITIVITI-USA - Itiviti USA, Inc. | 512 | — | 2 |
| AS399658US | CH3 - Guaranteed Rate Inc | 512 | — | 2 |
| AS22537US | ALBEMARLE-CORP - Albemarle Corp | 512 | — | 2 |
| AS63269US | BOOTBARN - Boot Barn Inc. | 512 | — | 2 |
| AS11893US | LOLIGO-ASN - Loligo Cache Systems, Inc. | 512 | — | 2 |
| AS208757US | RelInfoAS RelINFO Solutions LLC | 512 | — | 1 |
| AS23463US | LONEPINECAPITAL - Lone Pine Capital LLC | 512 | — | 2 |
| AS397065US | US-NJ - Hillside (Shared Services US) LLC | 512 | — | 2 |
| AS400703US | BB-7700 - Bankers' Bank | 512 | — | 2 |
| AS46084US | ASRCFH-NET - ASRC FEDERAL HOLDING COMPANY, LLC | 512 | — | 2 |
| AS17196US | COD-GE-IL - College of duPage | 512 | — | 1 |
| AS394510US | ZITEL-ASN-BLOCK01 - Zitel | 512 | — | 2 |
| AS13516US | CTCA1336 - Cancer Treatment Centers of America, Inc. | 512 | — | 2 |
| AS23082US | MPHI - Michigan Public Health Institute | 512 | — | 2 |
| AS395430US | COO - City of Oakland | 512 | — | 2 |
| AS17038US | FLORI-62 - FTD | 512 | — | 2 |
| AS40061US | UL-ASN-LAX1 - UnitedLayer, LLC | 512 | 8.2K | 3 |
| AS18702US | DEGENET-AS - DEGE NETWORK TECHNOLOGIES LLC | 512 | — | 2 |
| AS398381US | DC-ASN - Dallas, County Of | 512 | — | 2 |
| AS53736US | NUTANIX-IT - Nutanix | 512 | 33 | 5 |