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 |
|---|---|---|---|---|---|---|
| 103.122.252.0/22 | 1.0K |
0.0%
|
Shamsuzzaman Mamun | BD | Dhaka Division | Dhaka |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS138320 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 |
|---|---|---|
| 103.122.254.0/24 | 114,241 | 2026-08-05 13:38:13 |
| 103.122.252.0/23 | 112,076 | 2026-08-05 13:37:50 |
| 103.122.253.0/24 | 110,840 | 2026-08-05 13:38:09 |
| 103.122.252.0/24 | 108,684 | 2026-08-05 13:38:09 |
| 103.122.254.0/23 | 106,136 | 2026-08-05 13:37:50 |
| 103.122.252.0/22 | 103,826 | 2026-08-05 13:38:09 |
| 103.122.255.0/24 | 94,706 | 2026-08-05 13:38:08 |
Frequently Asked Questions
What is AS138320?
AS138320 is an Autonomous System Number assigned to Shamsuzzaman Mamun. 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 AS138320 announce?
AS138320 announces 1.0K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Bangladesh.
Who operates AS138320?
AS138320 is operated by Shamsuzzaman Mamun. The organization is based in Bangladesh. You can view all IP ranges and related ASNs on the organization page.
What country is AS138320 registered in?
AS138320 is registered in Bangladesh. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
