AS21451
Banca Sella Holding S.p.A.
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
Web3 footprint
AS21451 hosts 2 observed decentralized-network nodes across 2 networks. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 213.218.40.0/21 | 2.0K |
2.5%
|
Banca Sella Holding S.p.A. | IT | — | — |
| 213.218.56.0/21 | 2.0K |
0.0%
|
Banca Sella Holding S.p.A. | IT | — | — |
| 213.218.32.0/22 | 1.0K |
11.0%
|
Banca Sella Holding S.p.A. | IT | — | — |
| 213.218.52.0/22 | 1.0K |
23.3%
|
Banca Sella Holding S.p.A. | IT | Piedmont | Biella |
| 213.218.38.0/23 | 512 |
0.0%
|
Banca Sella Holding S.p.A. | IT | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS21451 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 213.218.32.0/19 | 18,553 | 2026-10-21 13:46:16 |
| 213.218.38.0/24 | 16,831 | 2026-10-21 13:46:12 |
| 213.218.39.0/24 | 16,733 | 2026-10-21 13:46:12 |
| 213.218.41.0/24 | 16,646 | 2026-10-21 13:46:12 |
| 213.218.40.0/24 | 16,645 | 2026-10-21 13:46:12 |
| 213.218.33.0/24 | 16,618 | 2026-10-21 13:46:12 |
| 213.218.34.0/24 | 16,593 | 2026-10-21 13:46:12 |
| 213.218.35.0/24 | 16,580 | 2026-10-21 13:46:12 |
| 213.218.32.0/24 | 16,522 | 2026-10-21 13:46:12 |
| 213.218.59.0/24 | 16,471 | 2026-10-21 13:46:12 |
| 213.218.54.0/24 | 16,454 | 2026-10-21 13:46:12 |
| 213.218.55.0/24 | 16,415 | 2026-10-21 13:46:12 |
| 213.218.56.0/24 | 16,415 | 2026-10-21 13:46:12 |
| 213.218.58.0/24 | 16,394 | 2026-10-21 13:46:12 |
| 213.218.57.0/24 | 16,391 | 2026-10-21 13:46:12 |
| 213.218.53.0/24 | 16,381 | 2026-10-21 13:46:12 |
| 213.218.60.0/22 | 16,377 | 2026-10-21 13:46:12 |
| 213.218.52.0/24 | 16,358 | 2026-10-21 13:46:12 |
| 213.218.46.0/24 | 16,349 | 2026-10-21 13:46:12 |
| 213.218.42.0/24 | 16,347 | 2026-10-21 13:46:12 |
| 213.218.47.0/24 | 16,328 | 2026-10-21 13:46:12 |
| 213.218.43.0/24 | 16,324 | 2026-10-21 13:46:12 |
| 213.218.45.0/24 | 16,312 | 2026-10-21 13:46:12 |
| 213.218.44.0/24 | 16,307 | 2026-10-21 13:46:12 |
Frequently Asked Questions
What is AS21451?
AS21451 is an Autonomous System Number assigned to Banca Sella Holding S.p.A.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS21451 announce?
AS21451 announces 6.7K IPv4 addresses distributed across 5 routed CIDR prefixes. The network is registered in Italy.
Who operates AS21451?
AS21451 is operated by Banca Sella Holding S.p.A.. The organization is based in Italy. You can view all IP ranges and related ASNs on the organization page.
What country is AS21451 registered in?
AS21451 is registered in Italy. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
