AS139137
Chinese Academy of Telecommunication Research
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
- Academic allocation +6
- Trust score 59 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 3 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS139137 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) |
|---|---|---|
| 103.61.63.0/24 | AS8075, AS139137 | 2026-07-21 05:53:09 |
| 103.61.61.0/24 | AS8075, AS139137 | 2026-07-21 05:53:09 |
| 103.61.60.0/24 | AS138457, AS139137 | 2026-07-21 05:53:09 |
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 103.61.60.0/24 | 256 |
0.0%
|
Chinese Academy of Telecommunication Research | CN | — | — |
| 103.61.60.128/25 | 128 |
0.0%
|
Chinese Academy of Telecommunication Research | CN | — | — |
| 103.61.60.0/26 | 64 |
0.0%
|
Chinese Academy of Telecommunication Research | US | — | — |
| 103.61.60.64/26 | 64 |
0.0%
|
Chinese Academy of Telecommunication Research | CN | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS139137 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 |
|---|---|---|
| 103.61.60.0/24 | 1,861 | 2026-07-21 04:18:31 |
| 103.61.63.0/24 | 24 | 2026-07-19 14:14:26 |
| 103.61.62.0/24 | 24 | 2026-07-19 14:14:26 |
| 103.61.61.0/24 | 24 | 2026-07-19 14:14:26 |
Frequently Asked Questions
What is AS139137?
AS139137 is an Autonomous System Number assigned to Chinese Academy of Telecommunication Research. 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 AS139137 announce?
AS139137 announces 256 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in United States.
Who operates AS139137?
AS139137 is operated by Chinese Academy of Telecommunication Research. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS139137 registered in?
AS139137 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
