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Autonomous System

AS37164

Orange (SL) Limited

Announced IPs
19,456
CIDR prefixes
11
ASN
AS37164

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.

58/100
Caution
How this score is built

Experimental · trust-vectors model v1.2.0 — 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.

PrefixOrigin ASNsLast detected (UTC)
197.215.27.0/24 AS37164, AS64512 2026-09-13 05:56:10

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
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
197.215.108.0/24 256
0.0%
Orange (SL) Limited SL
41.191.249.128/25 128
0.0%
TG
41.191.249.0/26 64
0.0%
SL
41.191.249.64/26 64
0.0%
TG

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.

PrefixAnnouncement samplesLast seen
197.215.66.0/24 37,056 2026-09-15 03:32:07
41.191.250.0/24 33,552 2026-09-15 03:32:07
41.191.249.0/24 31,210 2026-09-15 03:32:07
197.215.109.0/24 30,604 2026-08-14 03:05:19
197.215.23.0/24 30,461 2026-09-15 03:32:07
197.215.24.0/24 30,392 2026-09-15 03:32:07
197.215.44.0/24 30,389 2026-09-15 03:32:07
197.215.26.0/24 30,294 2026-09-15 03:32:07
197.215.20.0/24 30,284 2026-09-15 03:32:07
197.215.25.0/24 30,276 2026-09-15 03:32:07
197.215.21.0/24 30,247 2026-09-15 03:32:07
197.215.107.0/24 30,227 2026-09-15 03:32:07
197.215.108.0/24 30,214 2026-09-15 03:32:07
197.215.22.0/24 30,212 2026-09-15 03:32:07
197.215.0.0/18 30,124 2026-09-15 03:32:07
197.215.36.0/24 30,037 2026-09-15 03:32:07
197.215.29.0/24 30,024 2026-09-15 03:32:07
197.215.105.0/24 30,012 2026-09-15 03:32:07
197.215.106.0/24 30,008 2026-09-15 03:32:07
197.215.100.0/24 29,993 2026-09-15 03:32:07
197.215.69.0/24 29,992 2026-09-15 03:32:07
197.215.67.0/24 29,991 2026-09-15 03:32:07
197.215.33.0/24 29,990 2026-09-15 03:32:07
197.215.32.0/24 29,988 2026-09-15 03:32:07
197.215.30.0/24 29,976 2026-09-15 03:32:07
197.215.35.0/24 29,973 2026-09-15 03:32:07
197.215.31.0/24 29,972 2026-09-15 03:32:07
197.215.34.0/24 29,971 2026-09-15 03:32:07
197.215.28.0/24 29,961 2026-09-15 03:32:07
41.191.251.0/24 29,820 2026-09-15 03:32:07
197.215.27.0/24 3,791 2026-09-15 00:25:40
197.215.41.0/24 2,005 2026-09-03 11:41:33

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 11 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.

Last updated: 2026-09-15 03:54:06 UTC
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