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
- Isp allocation +5
- Trust score 58 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 1 MOAS prefix — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS37164 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) |
|---|---|---|
| 197.215.27.0/24 | AS37164, AS64512 | 2026-07-21 13:08:11 |
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 197.215.0.0/18 | 16.4K |
0.0%
|
ZAIN | SL | Western Area | Freetown |
| 41.191.250.0/23 | 512 |
0.0%
|
ZAIN | SL | — | — |
| 197.215.66.0/23 | 512 |
0.0%
|
ZAIN | SL | — | — |
| 197.215.106.0/23 | 512 |
0.0%
|
ZAIN | SL | — | — |
| 197.215.108.0/23 | 512 |
0.0%
|
ZAIN | SL | — | — |
| 41.191.249.0/24 | 256 |
0.0%
|
ZAIN | SL | — | — |
| 41.191.251.0/24 | 256 |
0.0%
|
ZAIN | SL | — | — |
| 197.215.69.0/24 | 256 |
0.4%
|
ZAIN | SL | — | — |
| 197.215.100.0/24 | 256 |
0.0%
|
ZAIN | SL | — | — |
| 197.215.105.0/24 | 256 |
0.0%
|
ZAIN | SL | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS37164 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 |
|---|---|---|
| 41.191.250.0/24 | 21,388 | 2026-07-21 12:30:55 |
| 41.191.249.0/24 | 20,023 | 2026-07-21 12:30:23 |
| 197.215.109.0/24 | 18,672 | 2026-07-21 12:26:40 |
| 197.215.23.0/24 | 18,489 | 2026-07-21 12:13:50 |
| 197.215.24.0/24 | 18,447 | 2026-07-21 12:14:44 |
| 197.215.20.0/24 | 18,434 | 2026-07-21 12:17:43 |
| 197.215.26.0/24 | 18,428 | 2026-07-21 12:16:10 |
| 197.215.25.0/24 | 18,413 | 2026-07-21 12:15:29 |
| 197.215.21.0/24 | 18,410 | 2026-07-21 12:18:20 |
| 197.215.107.0/24 | 18,406 | 2026-07-21 12:25:20 |
| 197.215.44.0/24 | 18,402 | 2026-07-21 12:22:02 |
| 197.215.108.0/24 | 18,390 | 2026-07-21 12:25:59 |
| 197.215.22.0/24 | 18,388 | 2026-07-21 12:18:56 |
| 197.215.29.0/24 | 18,236 | 2026-07-21 12:34:40 |
| 197.215.36.0/24 | 18,225 | 2026-07-21 12:28:13 |
| 197.215.105.0/24 | 18,214 | 2026-07-21 12:29:19 |
| 197.215.106.0/24 | 18,212 | 2026-07-21 12:29:55 |
| 197.215.30.0/24 | 18,203 | 2026-07-21 12:35:17 |
| 197.215.100.0/24 | 18,201 | 2026-07-21 12:31:16 |
| 197.215.33.0/24 | 18,198 | 2026-07-21 12:31:20 |
| 197.215.32.0/24 | 18,198 | 2026-07-21 12:30:47 |
| 197.215.66.0/24 | 18,197 | 2026-07-21 12:31:00 |
| 197.215.31.0/24 | 18,196 | 2026-07-21 12:36:11 |
| 197.215.67.0/24 | 18,193 | 2026-07-21 12:31:35 |
| 41.191.251.0/24 | 18,189 | 2026-07-21 12:31:29 |
| 197.215.28.0/24 | 18,187 | 2026-07-21 12:34:02 |
| 197.215.69.0/24 | 18,185 | 2026-07-21 12:27:54 |
| 197.215.35.0/24 | 18,183 | 2026-07-21 12:32:56 |
| 197.215.34.0/24 | 18,181 | 2026-07-21 12:31:53 |
| 197.215.0.0/18 | 18,176 | 2026-07-21 12:35:32 |
| 197.215.27.0/24 | 3,115 | 2026-07-21 06:04:37 |
Frequently Asked Questions
What is AS37164?
AS37164 is an Autonomous System Number assigned to Orange (SL) Limited. 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 AS37164 announce?
AS37164 announces 19.5K IPv4 addresses distributed across 10 routed CIDR prefixes. The network is registered in Sierra Leone.
Who operates AS37164?
AS37164 is operated by Orange (SL) Limited. The organization is based in Sierra Leone. You can view all IP ranges and related ASNs on the organization page.
What country is AS37164 registered in?
AS37164 is registered in Sierra Leone. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
