NETWORK LOOKUP TOOL
BGP Network Lookup for 12.239.72.0/21
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BigDataCloud Networks by CIDR APIParent Network
Network Details
BGP Prefix
12.239.72.0/21
BGP Prefix Network Address
12.239.72.0
BGP Prefix Last Address
12.239.79.255
Total Addresses
2,048
Registry
ARIN
Registry Status
assigned
Is Reachable Globally
true
Is Bogon
false
SubNetwork(s)
| Range From | Range To | Organisation |
|---|---|---|
| 12.239.71.112 | 12.239.74.95 |  AT&T Enterprises, LLC |
| 12.239.74.96 | 12.239.74.111 | ATT SERVICES INC- PEG |
| 12.239.74.112 | 12.239.74.191 | AT&T Enterprises, LLC |
| 12.239.74.192 | 12.239.74.255 | PEPPER CONSTRUCTION |
| 12.239.75.0 | 12.239.75.63 | AT&T Enterprises, LLC |
| 12.239.75.64 | 12.239.75.127 | MAXIMUM INDEPENDENT BROKERAGE, |
| 12.239.75.128 | 12.239.75.191 | AT&T Enterprises, LLC |
| 12.239.75.192 | 12.239.75.207 | DUPAGE COUNTY HEALTH DEPT. |
| 12.239.75.208 | 12.239.75.215 | AT&T Enterprises, LLC |
| 12.239.75.216 | 12.239.75.223 | STAFF RIGHT |
Announced By
ASN
Organisation
AT&T Enterprises, LLC
