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 →
Network profile
Source: PeeringDB →Present at 1 internet exchange: AR-IX Cabase - Argentina
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 190.181.64.0/18 | 16.4K |
51.8%
|
NORTECH | AR | Buenos Aires | Merlo |
| 181.225.192.0/19 | 8.2K |
47.9%
|
NORTECH | AR | Buenos Aires | Merlo |
| 186.1.224.0/20 | 4.1K |
70.9%
|
NORTECH | AR | Buenos Aires | Pilar |
| 186.0.136.0/21 | 2.0K |
88.7%
|
NORTECH | AR | Buenos Aires | Merlo |
| 186.1.240.0/21 | 2.0K |
87.4%
|
NORTECH | AR | Buenos Aires | Morón |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS52251 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 |
|---|---|---|
| 190.181.104.0/23 | 735,231 | 2026-07-24 10:54:57 |
| 190.181.102.0/23 | 733,890 | 2026-07-24 10:54:57 |
| 190.181.112.0/23 | 733,643 | 2026-07-24 10:54:57 |
| 190.181.116.0/23 | 731,914 | 2026-07-24 10:54:57 |
| 190.181.120.0/23 | 730,298 | 2026-07-24 10:54:57 |
| 190.181.110.0/23 | 729,320 | 2026-07-24 10:54:57 |
| 190.181.100.0/23 | 728,978 | 2026-07-24 10:54:57 |
| 190.181.114.0/23 | 728,798 | 2026-07-24 10:54:57 |
| 190.181.106.0/23 | 728,665 | 2026-07-24 10:54:57 |
| 190.181.126.0/23 | 727,142 | 2026-07-24 10:54:57 |
| 190.181.124.0/23 | 727,088 | 2026-07-24 10:54:57 |
| 190.181.96.0/23 | 725,750 | 2026-07-24 10:54:57 |
| 190.181.108.0/23 | 724,942 | 2026-07-24 10:54:57 |
| 190.181.98.0/23 | 724,220 | 2026-07-24 10:54:57 |
| 190.181.118.0/23 | 724,105 | 2026-07-24 10:54:57 |
| 190.181.122.0/23 | 720,186 | 2026-07-24 10:54:57 |
| 190.181.127.0/24 | 315,687 | 2026-07-24 10:39:17 |
| 190.181.65.0/24 | 70,037 | 2026-07-24 10:39:17 |
| 190.181.82.0/24 | 43,379 | 2026-07-24 10:39:17 |
| 190.181.124.0/24 | 31,192 | 2026-07-24 10:39:17 |
| 190.181.125.0/24 | 31,026 | 2026-07-24 10:39:17 |
| 190.181.110.0/24 | 30,995 | 2026-07-24 10:39:17 |
| 186.1.240.0/21 | 24,508 | 2026-07-24 10:31:11 |
| 190.181.96.0/19 | 22,260 | 2026-07-24 10:39:17 |
| 186.1.230.0/23 | 21,532 | 2026-07-24 10:31:11 |
| 186.1.224.0/23 | 21,486 | 2026-07-24 10:31:11 |
| 186.1.226.0/23 | 21,272 | 2026-07-24 10:31:11 |
| 186.1.236.0/23 | 21,243 | 2026-07-24 10:31:11 |
| 186.1.228.0/23 | 21,232 | 2026-07-24 10:31:11 |
| 186.1.238.0/23 | 21,216 | 2026-07-24 10:31:11 |
| 186.1.244.0/23 | 21,191 | 2026-07-24 10:31:11 |
| 186.1.232.0/23 | 21,152 | 2026-07-24 10:31:11 |
| 186.1.234.0/23 | 21,122 | 2026-07-24 10:31:11 |
| 186.1.240.0/23 | 21,111 | 2026-07-24 10:31:11 |
| 186.1.242.0/23 | 21,102 | 2026-07-24 10:31:11 |
| 186.1.246.0/23 | 21,076 | 2026-07-24 10:31:11 |
| 186.0.140.0/24 | 20,993 | 2026-07-24 09:38:04 |
| 181.225.202.0/23 | 18,413 | 2026-07-24 10:30:12 |
| 181.225.196.0/23 | 18,402 | 2026-07-24 10:30:12 |
| 181.225.204.0/23 | 18,390 | 2026-07-24 10:30:12 |
| 181.225.206.0/23 | 18,383 | 2026-07-24 10:30:12 |
| 181.225.208.0/23 | 18,375 | 2026-07-24 10:30:12 |
| 181.225.200.0/23 | 18,372 | 2026-07-24 10:30:12 |
| 181.225.192.0/23 | 18,355 | 2026-07-24 10:30:12 |
| 181.225.220.0/23 | 18,355 | 2026-07-24 10:30:12 |
| 181.225.222.0/23 | 18,349 | 2026-07-24 10:30:12 |
| 181.225.198.0/23 | 18,345 | 2026-07-24 10:30:12 |
| 181.225.218.0/23 | 18,329 | 2026-07-24 10:30:12 |
| 181.225.194.0/23 | 18,323 | 2026-07-24 10:30:12 |
| 181.225.210.0/23 | 18,313 | 2026-07-24 10:30:12 |
Showing top 50 of 197 announced prefixes by sample volume.
Frequently Asked Questions
What is AS52251?
AS52251 is an Autonomous System Number assigned to NORTECH. 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 AS52251 announce?
AS52251 announces 32.8K IPv4 addresses distributed across 5 routed CIDR prefixes. The network is registered in Argentina.
Who operates AS52251?
AS52251 is operated by NORTECH. The organization is based in Argentina. You can view all IP ranges and related ASNs on the organization page.
What country is AS52251 registered in?
AS52251 is registered in Argentina. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
