AS203951
Toseh Samanehay-e Narmafzari-e Negin (Tosan) PJSC
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
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 185.119.4.0/22 | 1.0K |
6.7%
|
Toseh Samanehay-e Narmafzari-e Negin (Tosan) PJSC | IR | — | — |
| 185.119.4.0/23 | 512 |
0.0%
|
— | IR | — | — |
| 185.119.6.0/23 | 512 |
0.0%
|
— | RU | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS203951 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 |
|---|---|---|
| 185.119.7.0/24 | 161,999 | 2026-08-05 07:40:56 |
| 185.119.4.0/22 | 159,669 | 2026-08-05 07:38:38 |
| 185.119.4.0/24 | 93,518 | 2026-08-05 05:54:29 |
| 185.119.6.0/24 | 93,383 | 2026-08-05 05:54:29 |
Frequently Asked Questions
What is AS203951?
AS203951 is an Autonomous System Number assigned to Toseh Samanehay-e Narmafzari-e Negin (Tosan) PJSC. 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 AS203951 announce?
AS203951 announces 1.0K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Iran.
Who operates AS203951?
AS203951 is operated by Toseh Samanehay-e Narmafzari-e Negin (Tosan) PJSC. The organization is based in Iran. You can view all IP ranges and related ASNs on the organization page.
What country is AS203951 registered in?
AS203951 is registered in Iran. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
