ASN Lookup Tool
AS402021 MT-WILSON-OBSERVATORY
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ASN
AS402021
Organisation
Mt. Wilson Observatory
Name
MT-WILSON-OBSERVATORY
Total IPv4 Addresses
256
Total IPv4 Prefixes
1
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#73,419 out of 79,556
Registry
Arin
Registered Country
USRegistered Country Name
United States of America (the)
Registered Date
Registration Last Change
2025-09-26
Receiving From
ASN
Organisation
AT&T Enterprises, LLCIPv4 Active Prefixes
| Prefix | Range From | Range To |
|---|---|---|
| 192.153.157.0/24 | 192.153.157.0 | 192.153.157.255 |