// ASN
AS18731
CITYSIDE-01 - Cityside Fiber, US
Detailed information about the Autonomous System. Need another one? Look up a different ASN.
- ASN
- AS18731
- Organization
- Cityside Fiber
- Description
- CITYSIDE-01 - Cityside Fiber, US
- Country
- US
- State / Region
- CA
- City
- Irvine
- Address
- 100 Spectrum Center Dr suite 500
- Created
- 2023-10-05
- Updated
- 2025-05-12
- IPv4 Prefixes
- 3
- IPv6 Prefixes
- 1
IPv4 Prefixes
3 total128.177.138.0/24 154.50.58.0/24 23.164.40.0/24
IPv6 Prefixes
1 total2607:73c0:100::/48
What is AS18731?
AS18731 is an Autonomous System Number (ASN) assigned to Cityside Fiber. An ASN identifies a network or group of IP prefixes operated under a common routing policy in the BGP protocol.
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