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
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 197.228.128.0/23 | 512 |
99.8%
|
TELKOMMOBILE | ZA | — | — |
| 165.143.109.0/24 | 256 |
98.4%
|
TELKOMMOBILE | ZA | — | — |
| 165.143.110.0/24 | 256 |
99.2%
|
TELKOMMOBILE | ZA | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS37251 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 |
|---|---|---|
| 165.143.109.0/24 | 19,830 | 2026-07-19 04:01:57 |
| 197.228.128.0/23 | 19,779 | 2026-07-19 04:02:35 |
| 165.143.110.0/24 | 19,670 | 2026-07-19 04:01:58 |
Frequently Asked Questions
What is AS37251?
AS37251 is an Autonomous System Number assigned to Telkom SA 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 AS37251 announce?
AS37251 announces 1.0K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in South Africa.
Who operates AS37251?
AS37251 is operated by Telkom SA Ltd.. The organization is based in South Africa. You can view all IP ranges and related ASNs on the organization page.
What country is AS37251 registered in?
AS37251 is registered in South Africa. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
