72.157.240.0/21
🇺🇸CIDR
72.157.240.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Atlanta (Buckhead)
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 72.157.240.0/21 | AS11712BELLSOUTH - AT&T Services, Inc. | No ROA | — | 5/31/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 72.156.0.0/14 | AS6389BELLSOUTH-NET-BLK - AT&T Enterprises, LLC | No ROA | — | 5/31/2026 |
Origin ASN
AS11712
BELLSOUTH - AT&T Services, Inc.
Geolocation
API
Open https://api.ipctl.io/v1/prefix/72.157.240.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/72.157.240.0/21" | jq
External Links