81.121.0.0/16
🇮🇹CIDR
81.121.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇮🇹 Italy
City
Milan
RIR
RIPENCC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 81.121.0.0/16 | AS3269ASN-IBSNAZ Telecom Italia S.p.A. | No ROA | RIPE | 6/13/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 81.120.0.0/14 | AS3269ASN-IBSNAZ Telecom Italia S.p.A. | No ROA | — | 6/13/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS3269 | RIPE | INTERB-MNT | 2/11/2022 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 81.121.123.0/24 | 🇮🇹IT | assigned | |
| 81.121.193.0/24 | 🇮🇹IT | assigned | |
| 81.121.107.0/24 | 🇮🇹IT | assigned | |
| 81.121.76.0/24 | 🇮🇹IT | assigned | |
| 81.121.11.0/24 | 🇮🇹IT | assigned | |
| 81.121.103.0/24 | 🇮🇹IT | assigned | |
| 81.121.72.0/24 | 🇮🇹IT | assigned | |
| 81.121.109.0/24 | 🇮🇹IT | assigned | |
| 81.121.70.0/24 | 🇮🇹IT | assigned | |
| 81.121.5.0/24 | 🇮🇹IT | assigned | |
| 81.121.122.0/24 | 🇮🇹IT | assigned | |
| 81.121.125.0/24 | 🇮🇹IT | assigned | |
| 81.121.113.0/24 | 🇮🇹IT | assigned | |
| 81.121.147.0/24 | 🇮🇹IT | assigned | |
| 81.121.148.0/24 | 🇮🇹IT | assigned | |
| 81.121.111.0/24 | 🇮🇹IT | assigned | |
| 81.121.20.0/24 | 🇮🇹IT | assigned | |
| 81.121.118.0/24 | 🇮🇹IT | assigned | |
| 81.121.149.0/24 | 🇮🇹IT | assigned | |
| 81.121.3.0/24 | 🇮🇹IT | assigned | |
| 81.121.9.0/24 | 🇮🇹IT | assigned | |
| 81.121.14.0/24 | 🇮🇹IT | assigned | |
| 81.121.195.0/24 | 🇮🇹IT | assigned | |
| 81.121.99.0/24 | 🇮🇹IT | assigned | |
| 81.121.110.0/24 | 🇮🇹IT | assigned | |
| 81.121.121.0/24 | 🇮🇹IT | assigned | |
| 81.121.192.0/24 | 🇮🇹IT | assigned | |
| 81.121.124.0/24 | 🇮🇹IT | assigned | |
| 81.121.78.0/24 | 🇮🇹IT | assigned | |
| 81.121.146.0/24 | 🇮🇹IT | assigned | |
| 81.121.12.0/24 | 🇮🇹IT | assigned | |
| 81.121.79.0/24 | 🇮🇹IT | assigned | |
| 81.121.131.0/24 | 🇮🇹IT | assigned | |
| 81.121.68.0/24 | 🇮🇹IT | assigned | |
| 81.121.120.0/24 | 🇮🇹IT | assigned | |
| 81.121.15.0/24 | 🇮🇹IT | assigned | |
| 81.121.75.0/24 | 🇮🇹IT | assigned | |
| 81.121.117.0/24 | 🇮🇹IT | assigned | |
| 81.121.105.0/24 | 🇮🇹IT | assigned | |
| 81.121.126.0/24 | 🇮🇹IT | assigned | |
| 81.121.22.0/24 | 🇮🇹IT | assigned | |
| 81.121.16.0/24 | 🇮🇹IT | assigned | |
| 81.121.21.0/24 | 🇮🇹IT | assigned | |
| 81.121.69.0/24 | 🇮🇹IT | assigned | |
| 81.121.228.0/24 | 🇮🇹IT | assigned | |
| 81.121.23.0/24 | 🇮🇹IT | assigned | |
| 81.121.77.0/24 | 🇮🇹IT | assigned | |
| 81.121.127.0/24 | 🇮🇹IT | assigned | |
| 81.121.97.0/24 | 🇮🇹IT | assigned | |
| 81.121.98.0/24 | 🇮🇹IT | assigned | |
| 81.121.102.0/24 | 🇮🇹IT | assigned | |
| 81.121.106.0/24 | 🇮🇹IT | assigned | |
| 81.121.112.0/24 | 🇮🇹IT | assigned | |
| 81.121.114.0/24 | 🇮🇹IT | assigned | |
| 81.121.108.0/24 | 🇮🇹IT | assigned | |
| 81.121.150.0/24 | 🇮🇹IT | assigned | |
| 81.121.129.0/24 | 🇮🇹IT | assigned | |
| 81.121.104.0/24 | 🇮🇹IT | assigned | |
| 81.121.96.0/24 | 🇮🇹IT | assigned | |
| 81.121.100.0/24 | 🇮🇹IT | assigned | |
| 81.121.74.0/24 | 🇮🇹IT | assigned | |
| 81.121.73.0/24 | 🇮🇹IT | assigned | |
| 81.121.0.0/24 | 🇮🇹IT | assigned | |
| 81.121.10.0/24 | 🇮🇹IT | assigned | |
| 81.121.13.0/24 | 🇮🇹IT | assigned | |
| 81.121.71.0/24 | 🇮🇹IT | assigned | |
| 81.121.101.0/24 | 🇮🇹IT | assigned | |
| 81.121.128.0/24 | 🇮🇹IT | assigned | |
| 81.121.2.0/24 | 🇮🇹IT | assigned | |
| 81.121.4.0/24 | 🇮🇹IT | assigned | |
| 81.121.1.0/24 | 🇮🇹IT | assigned | |
| 81.121.119.0/24 | 🇮🇹IT | assigned | |
| 81.121.194.0/24 | 🇮🇹IT | assigned | |
| 81.121.80.32/27 | 🇮🇹IT | assigned | |
| 81.121.32.64/27 | 🇮🇹IT | assigned | |
| 81.121.80.96/27 | 🇮🇹IT | assigned | |
| 81.121.32.32/27 | 🇮🇹IT | assigned | |
| 81.121.144.32/27 | 🇮🇹IT | assigned | |
| 81.121.204.64/28 | 🇮🇹IT | assigned | |
| 81.121.144.176/28 | 🇮🇹IT | assigned | |
| 81.121.144.96/28 | 🇮🇹IT | assigned | |
| 81.121.204.16/28 | 🇮🇹IT | assigned | |
| 81.121.80.64/28 | 🇮🇹IT | assigned | |
| 81.121.80.80/28 | 🇮🇹IT | assigned | |
| 81.121.144.192/28 | 🇮🇹IT | assigned | |
| 81.121.204.32/28 | 🇮🇹IT | assigned | |
| 81.121.144.112/28 | 🇮🇹IT | assigned | |
| 81.121.32.128/28 | 🇮🇹IT | assigned | |
| 81.121.144.0/28 | 🇮🇹IT | assigned | |
| 81.121.32.112/28 | 🇮🇹IT | assigned | |
| 81.121.133.136/29 | 🇮🇹IT | assigned | |
| 81.121.133.112/29 | 🇮🇹IT | assigned | |
| 81.121.243.24/29 | 🇮🇹IT | assigned | |
| 81.121.133.56/29 | 🇮🇹IT | assigned | |
| 81.121.29.208/29 | 🇮🇹IT | assigned | |
| 81.121.242.168/29 | 🇮🇹IT | assigned | |
| 81.121.243.200/29 | 🇮🇹IT | assigned | |
| 81.121.242.8/29 | 🇮🇹IT | assigned | |
| 81.121.220.112/29 | 🇮🇹IT | assigned | |
| 81.121.241.248/29 | 🇮🇹IT | assigned |
Origin ASN
AS3269
ASN-IBSNAZ Telecom Italia S.p.A.
Geolocation
Abuse Contact
API
Open https://api.ipctl.io/v1/prefix/81.121.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/81.121.0.0/16" | jq
External Links