Autonomous System
AS19739 County of San Bernardino
GovernmentActiveUnited StatesARIN
AS19739 (COUNTY-SANBERNARDINO) is a government network operated by County of San Bernardino in United States, registered with ARIN. It has 27 IPv4 prefixes with 10,496 addresses, which makes it the 9,845th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses10,496in 27 prefixes
IPv6 prefixes0none
Size rank#9,845of 82,200 active ASNs
Details
OrganizationCounty of San Bernardino
AS nameCOUNTY-SANBERNARDINO
Websitesbcounty.gov
Country United States (US)
Network typeGovernment
RegistryARIN
Abuse contactdavid.robbins@itd.sbcounty.gov
Registered2001-02-08
Last updated2021-08-19
IPv4 prefixes
27 prefixes · 10,496 addresses| Network | Addresses | First – last address |
|---|---|---|
| 170.164.240.0/21 | 2,048 | 170.164.240.0 – 170.164.247.255 |
| 170.164.116.0/22 | 1,024 | 170.164.116.0 – 170.164.119.255 |
| 170.164.40.0/23 | 512 | 170.164.40.0 – 170.164.41.255 |
| 170.164.42.0/23 | 512 | 170.164.42.0 – 170.164.43.255 |
| 170.164.44.0/23 | 512 | 170.164.44.0 – 170.164.45.255 |
| 170.164.84.0/23 | 512 | 170.164.84.0 – 170.164.85.255 |
| 170.164.0.0/24 | 256 | 170.164.0.0 – 170.164.0.255 |
| 170.164.10.0/24 | 256 | 170.164.10.0 – 170.164.10.255 |
| 170.164.11.0/24 | 256 | 170.164.11.0 – 170.164.11.255 |
| 170.164.14.0/24 | 256 | 170.164.14.0 – 170.164.14.255 |
| 170.164.20.0/24 | 256 | 170.164.20.0 – 170.164.20.255 |
| 170.164.21.0/24 | 256 | 170.164.21.0 – 170.164.21.255 |
| 170.164.50.0/24 | 256 | 170.164.50.0 – 170.164.50.255 |
| 170.164.60.0/24 | 256 | 170.164.60.0 – 170.164.60.255 |
| 170.164.70.0/24 | 256 | 170.164.70.0 – 170.164.70.255 |
| 170.164.71.0/24 | 256 | 170.164.71.0 – 170.164.71.255 |
| 170.164.75.0/24 | 256 | 170.164.75.0 – 170.164.75.255 |
| 170.164.87.0/24 | 256 | 170.164.87.0 – 170.164.87.255 |
| 170.164.97.0/24 | 256 | 170.164.97.0 – 170.164.97.255 |
| 170.164.101.0/24 | 256 | 170.164.101.0 – 170.164.101.255 |
| 170.164.107.0/24 | 256 | 170.164.107.0 – 170.164.107.255 |
| 170.164.124.0/24 | 256 | 170.164.124.0 – 170.164.124.255 |
| 170.164.125.0/24 | 256 | 170.164.125.0 – 170.164.125.255 |
| 170.164.165.0/24 | 256 | 170.164.165.0 – 170.164.165.255 |
| 170.164.239.0/24 | 256 | 170.164.239.0 – 170.164.239.255 |
170.164.240.0/21 170.164.116.0/22 170.164.40.0/23 170.164.42.0/23 170.164.44.0/23 170.164.84.0/23 170.164.0.0/24 170.164.10.0/24 170.164.11.0/24 170.164.14.0/24 170.164.20.0/24 170.164.21.0/24 170.164.50.0/24 170.164.60.0/24 170.164.70.0/24 170.164.71.0/24 170.164.75.0/24 170.164.87.0/24 170.164.97.0/24 170.164.101.0/24 170.164.107.0/24 170.164.124.0/24 170.164.125.0/24 170.164.165.0/24 170.164.239.0/24
The 25 largest of 27. The API and the database have all of them.
IPv6 prefixes
No IPv6 prefixes.
Query AS19739 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS19739&key=YOUR_API_KEY"
Any address in its prefixes resolves to AS19739, with or without a key:
curl "https://api.ipapi.is/?q=170.164.240.1"
Largest networks in United States
AS749 United States Department of Defense (DoD)227,464,192 IPv4 addressesAS16509 Amazon.com, Inc.218,038,784 IPv4 addressesAS7018 AT&T Enterprises, LLC117,262,080 IPv4 addressesAS8075 Microsoft Corporation81,463,040 IPv4 addressesAS721 United States Department of Defense (DoD)73,070,080 IPv4 addressesAS7922 Comcast Cable Communications, LLC68,336,896 IPv4 addresses