37.221.208.0/21
🇭🇺CIDR
37.221.208.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇭🇺 Hungary
City
Budapest (XIII. kerület)
RIR
RIPENCC
Status
allocated
Allocated
4/10/2012
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 37.221.208.0/21 | AS41075ATW-AS ATW Internet Kft. | No ROA | RIPE | 5/31/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 37.221.208.0/22 | AS41075ATW-AS ATW Internet Kft. | No ROA | — | 5/31/2026 |
| 37.221.212.0/22 | AS41075ATW-AS ATW Internet Kft. | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS41075 | RIPE | MNT-ATW | 9/11/2012 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 37.221.210.0/24 | 🇭🇺HU | assigned | |
| 37.221.213.0/24 | 🇭🇺HU | assigned | |
| 37.221.214.0/24 | 🇭🇺HU | assigned | |
| 37.221.209.128/25 | 🇭🇺HU | assigned | |
| 37.221.209.0/26 | 🇭🇺HU | assigned | |
| 37.221.209.64/27 | 🇭🇺HU | assigned | |
| 37.221.209.96/27 | 🇭🇺HU | assigned |
Origin ASN
AS41075
ATW-AS ATW Internet Kft.
Geolocation
Abuse Contact
API
Open https://api.ipctl.io/v1/prefix/37.221.208.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/37.221.208.0/21" | jq
External Links