37.203.200.0/21
🇷🇺CIDR
37.203.200.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇷🇺 Russia
City
Ryazan
RIR
RIPENCC
Status
allocated
Allocated
3/26/2012
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 37.203.200.0/21 | AS56420RYAZAN-AS JSC "ER-Telecom Holding" | No ROA | RIPE | 5/31/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 37.203.200.0/22 | AS56420RYAZAN-AS JSC "ER-Telecom Holding" | No ROA | — | 5/31/2026 |
| 37.203.204.0/23 | AS56420RYAZAN-AS JSC "ER-Telecom Holding" | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS56420 | RIPE | RAID-MNT | 7/25/2018 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 37.203.204.0/22 | 🇷🇺RU | assigned | |
| 37.203.200.0/22 | AS56420 | 🇷🇺RU | assigned |
Geolocation
Abuse Contact
API
Open https://api.ipctl.io/v1/prefix/37.203.200.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/37.203.200.0/21" | jq
External Links