AS133748
CORETEL NETWORKS (INTERNATIONAL) PTE LTD
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
- Multiple-origin (MOAS) routing anomaly −12
- Trust score 53 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 2 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS133748 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 206.131.200.0/24 | AS132204, AS133748 | 2026-08-01 02:54:58 |
| 206.131.201.0/24 | AS132204, AS133748 | 2026-08-01 02:39:57 |
Network profile
Source: PeeringDB →Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS133748 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 |
|---|---|---|
| 206.131.196.0/24 | 3,718,103 | 2026-08-01 02:42:18 |
| 206.131.197.0/24 | 55,054 | 2026-08-01 02:28:43 |
| 103.41.128.0/24 | 32,215 | 2026-08-01 01:46:31 |
| 43.249.251.0/24 | 14,442 | 2026-07-27 03:29:06 |
| 206.131.206.0/24 | 12,924 | 2026-08-01 02:10:50 |
| 206.131.195.0/24 | 12,273 | 2026-08-01 02:10:50 |
| 206.131.198.0/24 | 11,943 | 2026-08-01 02:10:50 |
| 43.249.248.0/24 | 11,777 | 2026-08-01 01:46:31 |
| 206.131.203.0/24 | 11,745 | 2026-08-01 02:10:50 |
| 206.131.204.0/24 | 11,627 | 2026-08-01 02:10:50 |
| 103.41.130.0/24 | 11,585 | 2026-08-01 01:46:31 |
| 43.249.249.0/24 | 10,696 | 2026-08-01 01:46:31 |
| 156.225.48.0/24 | 10,457 | 2026-08-01 01:49:51 |
| 43.249.250.0/24 | 10,406 | 2026-08-01 01:46:31 |
| 103.41.131.0/24 | 9,230 | 2026-08-01 01:46:31 |
| 206.131.205.0/24 | 8,980 | 2026-08-01 02:10:50 |
| 206.131.202.0/24 | 8,879 | 2026-08-01 02:10:50 |
| 206.131.199.0/24 | 8,869 | 2026-08-01 02:10:50 |
| 206.131.207.0/24 | 5,824 | 2026-08-01 02:10:50 |
| 206.131.193.0/24 | 5,799 | 2026-08-01 02:10:50 |
| 206.131.200.0/24 | 580 | 2026-07-31 18:56:04 |
| 206.131.201.0/24 | 570 | 2026-07-31 18:55:06 |
Frequently Asked Questions
What is AS133748?
AS133748 is an Autonomous System Number assigned to CORETEL NETWORKS (INTERNATIONAL) PTE LTD. 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 AS133748 announce?
AS133748 announces 5.9K IPv4 addresses distributed across 9 routed CIDR prefixes. The network is registered in Singapore.
Who operates AS133748?
AS133748 is operated by CORETEL NETWORKS INTERNATIONAL PTE LTD. The organization is based in Singapore. You can view all IP ranges and related ASNs on the organization page.
What country is AS133748 registered in?
AS133748 is registered in Singapore. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
