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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS12257 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 |
|---|---|---|
| 152.62.163.0/24 | 110,711 | 2026-07-23 20:31:01 |
| 168.159.160.0/24 | 52,751 | 2026-07-23 20:35:45 |
| 168.159.162.0/24 | 50,228 | 2026-07-23 20:35:45 |
| 147.178.8.0/24 | 49,714 | 2026-07-23 20:35:45 |
| 163.244.72.0/24 | 24,484 | 2026-07-23 20:35:45 |
| 199.245.235.0/24 | 15,933 | 2026-07-23 20:30:23 |
| 12.7.200.0/24 | 14,231 | 2026-07-23 20:30:23 |
| 128.221.221.0/24 | 14,178 | 2026-07-23 20:30:23 |
| 128.221.226.0/24 | 14,171 | 2026-07-23 20:30:23 |
| 128.221.215.0/24 | 14,170 | 2026-07-23 20:30:23 |
| 128.221.237.0/24 | 14,169 | 2026-07-23 20:30:23 |
| 128.221.217.0/24 | 14,169 | 2026-07-23 20:30:23 |
| 147.178.5.0/24 | 14,168 | 2026-07-23 20:30:23 |
| 128.221.222.0/24 | 14,165 | 2026-07-23 20:30:23 |
| 128.221.209.0/24 | 14,164 | 2026-07-23 20:30:23 |
| 128.221.227.0/24 | 14,164 | 2026-07-23 20:30:23 |
| 128.221.230.0/24 | 14,159 | 2026-07-23 20:30:23 |
| 128.221.218.0/24 | 14,157 | 2026-07-23 20:30:23 |
| 128.221.212.0/24 | 14,156 | 2026-07-23 20:30:23 |
| 128.221.220.0/24 | 14,155 | 2026-07-23 20:30:23 |
| 128.221.219.0/24 | 14,153 | 2026-07-23 20:30:23 |
| 128.221.231.0/24 | 14,153 | 2026-07-23 20:30:23 |
| 128.221.216.0/24 | 14,152 | 2026-07-23 20:30:23 |
| 128.221.214.0/24 | 14,151 | 2026-07-23 20:30:23 |
| 128.221.208.0/24 | 14,147 | 2026-07-23 20:30:23 |
| 128.221.239.0/24 | 14,144 | 2026-07-23 20:30:23 |
| 128.221.213.0/24 | 14,143 | 2026-07-23 20:30:23 |
| 128.221.225.0/24 | 14,141 | 2026-07-23 20:30:23 |
| 128.221.235.0/24 | 14,140 | 2026-07-23 20:30:23 |
| 128.221.223.0/24 | 14,137 | 2026-07-23 20:30:23 |
| 128.221.224.0/24 | 14,135 | 2026-07-23 20:30:23 |
| 128.221.232.0/24 | 14,128 | 2026-07-23 20:30:23 |
| 147.178.4.0/24 | 14,125 | 2026-07-23 20:30:23 |
| 128.221.233.0/24 | 14,125 | 2026-07-23 20:30:23 |
| 128.221.228.0/24 | 14,111 | 2026-07-23 20:30:23 |
| 128.221.192.0/24 | 12,034 | 2026-07-18 12:15:55 |
| 152.62.193.0/24 | 9,299 | 2026-07-23 20:44:12 |
| 152.62.155.0/24 | 9,234 | 2026-07-23 20:30:57 |
| 152.62.118.0/24 | 8,962 | 2026-07-23 20:30:57 |
| 152.62.154.0/24 | 8,921 | 2026-07-23 20:30:57 |
| 152.62.97.0/24 | 8,714 | 2026-07-23 20:30:57 |
| 152.62.47.0/24 | 7,812 | 2026-06-06 03:26:10 |
| 152.62.44.0/24 | 7,792 | 2026-06-06 03:26:10 |
| 152.62.60.0/24 | 7,737 | 2026-06-06 03:26:10 |
| 137.69.117.0/24 | 4,892 | 2026-07-23 21:09:44 |
| 137.69.113.0/24 | 4,526 | 2026-07-23 21:09:44 |
| 132.237.141.0/24 | 4,459 | 2026-07-23 21:09:44 |
| 147.178.2.0/24 | 4,409 | 2026-07-23 21:09:44 |
| 152.62.185.0/24 | 4,291 | 2026-07-23 20:43:26 |
| 152.62.187.0/24 | 4,286 | 2026-07-23 20:43:26 |
Showing top 50 of 67 announced prefixes by sample volume.
Frequently Asked Questions
What is AS12257?
AS12257 is an Autonomous System Number assigned to Dell, Inc.. 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 AS12257 announce?
AS12257 announces 17.2K IPv4 addresses distributed across 40 routed CIDR prefixes. The network is registered in United States.
Who operates AS12257?
AS12257 is operated by Dell, Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS12257 registered in?
AS12257 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
