87.87.128.0/21
🇬🇧CIDR
87.87.128.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇬🇧 United Kingdom
City
Isleworth
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 87.87.128.0/21 | AS5650FRONTIER-FRTR - Frontier Communications of America, Inc. | Valid | ARIN | 5/31/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 87.84.0.0/14 | AS3257GTT-BACKBONE GTT Communications Inc. | No ROA | — | 5/31/2026 |
| 87.87.0.0/16 | AS3257GTT-BACKBONE GTT Communications Inc. | No ROA | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/87.87.128.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/87.87.128.0/21" | jq
External Links