Autonomous System
AS18731 Cityside Fiber
ISPActiveUnited StatesARIN
AS18731 (CITYSIDE-01) is an ISP network operated by Cityside Fiber in United States, registered with ARIN. It has 5 IPv4 prefixes with 13,056 addresses and 3 IPv6 prefixes, which makes it the 8,836th largest of 82,681 active autonomous systems by IPv4 space.
IPv4 addresses13,056in 5 prefixes
IPv6 prefixes3≈ 1.6 × 10²⁹ addresses
Size rank#8,836of 82,681 active ASNs
Details
OrganizationCityside Fiber
AS nameCITYSIDE-01
Websitecitysidefiber.com
Country United States (US)
Network typeISP
RegistryARIN
Abuse contactjake.simon@citysidenetworks.com
Registered2023-10-12
Last updated2023-10-12
IPv4 prefixes
5 prefixes · 13,056 addresses| Network | Addresses | First – last address |
|---|---|---|
| 198.170.224.0/19 | 8,192 | 198.170.224.0 – 198.170.255.255 |
| 157.238.80.0/20 | 4,096 | 157.238.80.0 – 157.238.95.255 |
| 23.164.40.0/24 | 256 | 23.164.40.0 – 23.164.40.255 |
| 128.177.138.0/24 | 256 | 128.177.138.0 – 128.177.138.255 |
| 154.50.58.0/24 | 256 | 154.50.58.0 – 154.50.58.255 |
198.170.224.0/19 157.238.80.0/20 23.164.40.0/24 128.177.138.0/24 154.50.58.0/24
IPv6 prefixes
3 prefixes- 2607:73c0::/32
- 2607:73c0::/33
- 2607:73c0:8000::/33
2607:73c0::/32 2607:73c0::/33 2607:73c0:8000::/33
Query AS18731 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=AS18731&key=YOUR_API_KEY"Any address in its prefixes resolves to AS18731, with or without a key:
curl "https://api.ipapi.is/?q=198.170.224.1"Largest networks in United States
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