AS9903
Rajamangala Institute of Technology
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
- Academic allocation +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 203.158.96.0/20 | 4.1K |
0.7%
|
Rajamangala Institute of Technology | TH | — | — |
| 203.158.120.0/21 | 2.0K |
0.0%
|
Rajamangala Institute of Technology | TH | — | — |
| 203.158.248.0/21 | 2.0K |
4.2%
|
Rajamangala Institute of Technology | TH | — | — |
| 203.158.112.0/22 | 1.0K |
2.2%
|
Rajamangala Institute of Technology | TH | — | — |
| 203.158.240.0/22 | 1.0K |
0.0%
|
Rajamangala Institute of Technology | TH | — | — |
| 202.44.130.0/23 | 512 |
1.4%
|
Rajamangala Institute of Technology | TH | — | — |
| 203.158.116.0/23 | 512 |
0.0%
|
Rajamangala Institute of Technology | TH | — | — |
| 203.158.119.0/24 | 256 |
0.0%
|
Rajamangala Institute of Technology | TH | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS9903 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 |
|---|---|---|
| 203.158.240.0/24 | 70,512 | 2026-10-20 06:04:41 |
| 203.158.241.0/24 | 70,445 | 2026-10-20 06:04:41 |
| 203.158.242.0/24 | 70,398 | 2026-10-20 06:04:41 |
| 203.158.243.0/24 | 70,304 | 2026-10-20 06:04:41 |
| 203.158.252.0/24 | 69,722 | 2026-10-20 06:04:41 |
| 203.158.254.0/24 | 69,605 | 2026-10-20 06:04:41 |
| 203.158.253.0/24 | 69,590 | 2026-10-20 06:04:41 |
| 203.158.255.0/24 | 69,557 | 2026-10-20 06:04:41 |
| 203.158.249.0/24 | 69,488 | 2026-10-20 06:04:41 |
| 203.158.250.0/24 | 69,451 | 2026-10-20 06:04:41 |
| 203.158.251.0/24 | 69,284 | 2026-10-20 06:04:41 |
| 203.158.240.0/20 | 58,810 | 2026-10-20 06:05:23 |
| 203.158.110.0/24 | 48,484 | 2026-10-20 06:04:41 |
| 203.158.111.0/24 | 48,390 | 2026-10-20 06:04:41 |
| 202.44.131.0/24 | 48,216 | 2026-10-20 06:04:41 |
| 203.158.96.0/24 | 48,184 | 2026-10-20 06:04:41 |
| 203.158.127.0/24 | 47,826 | 2026-10-20 06:04:41 |
| 203.158.126.0/24 | 47,646 | 2026-10-20 06:04:41 |
| 203.158.122.0/24 | 47,500 | 2026-10-20 06:04:41 |
| 203.158.123.0/24 | 47,441 | 2026-10-20 06:04:41 |
| 203.158.124.0/24 | 47,418 | 2026-10-20 06:04:41 |
| 203.158.125.0/24 | 47,342 | 2026-10-20 06:04:41 |
| 203.158.121.0/24 | 47,153 | 2026-10-20 06:04:41 |
| 203.158.120.0/24 | 47,137 | 2026-10-20 06:04:41 |
| 203.158.112.0/24 | 39,498 | 2026-10-20 06:04:41 |
| 203.158.113.0/24 | 39,413 | 2026-10-20 06:04:41 |
| 203.158.105.0/24 | 39,343 | 2026-10-20 06:04:41 |
| 203.158.109.0/24 | 39,300 | 2026-10-20 06:04:41 |
| 203.158.106.0/24 | 39,287 | 2026-10-20 06:04:41 |
| 203.158.107.0/24 | 39,196 | 2026-10-20 06:04:41 |
| 203.158.108.0/24 | 39,162 | 2026-10-20 06:04:41 |
| 203.158.103.0/24 | 39,020 | 2026-10-20 06:04:41 |
| 203.158.104.0/24 | 39,009 | 2026-10-20 06:04:41 |
| 203.158.101.0/24 | 39,008 | 2026-10-20 06:04:41 |
| 203.158.102.0/24 | 38,977 | 2026-10-20 06:04:41 |
| 203.158.98.0/24 | 38,953 | 2026-10-20 06:04:41 |
| 203.158.97.0/24 | 38,937 | 2026-10-20 06:04:41 |
| 203.158.99.0/24 | 38,936 | 2026-10-20 06:04:41 |
| 203.158.100.0/24 | 38,935 | 2026-10-20 06:04:41 |
| 203.158.119.0/24 | 38,482 | 2026-10-20 06:04:41 |
| 203.158.115.0/24 | 38,332 | 2026-10-20 06:04:41 |
| 203.158.114.0/24 | 38,280 | 2026-10-20 06:04:41 |
| 203.158.116.0/24 | 38,183 | 2026-10-20 06:04:41 |
| 203.158.117.0/24 | 38,139 | 2026-10-20 06:04:41 |
| 202.44.130.0/23 | 36,927 | 2026-10-20 06:05:23 |
| 203.158.96.0/19 | 36,702 | 2026-10-20 06:05:23 |
Frequently Asked Questions
What is AS9903?
AS9903 is an Autonomous System Number assigned to Rajamangala Institute of Technology. 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 AS9903 announce?
AS9903 announces 11.5K IPv4 addresses distributed across 8 routed CIDR prefixes. The network is registered in Thailand.
Who operates AS9903?
AS9903 is operated by Rajamangala Institute of Technology. The organization is based in Thailand. You can view all IP ranges and related ASNs on the organization page.
What country is AS9903 registered in?
AS9903 is registered in Thailand. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
