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Autonomous System

AS37305

Frontier Optical Networks Ltd

Announced IPs
4,096
CIDR prefixes
3
ASN
AS37305

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.

70/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 20-50Gbps
Geographic scope Regional
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS-37305

Present at 3 internet exchanges: KIXP - Nairobi: Peering LAN, LINX Mombasa, LINX Nairobi

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
197.231.176.0/21 2.0K
0.4%
FON KE
41.79.8.0/22 1.0K
3.8%
FON KE
102.212.132.0/22 1.0K
0.0%
FON KE

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS37305 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
197.231.178.0/24 34,353 2026-07-24 14:00:12
197.231.179.0/24 34,165 2026-07-24 14:00:12
102.212.135.0/24 33,773 2026-07-24 14:00:43
197.231.180.0/24 33,634 2026-07-24 14:00:43
197.231.181.0/24 32,854 2026-07-24 13:54:40
197.231.177.0/24 30,345 2026-07-24 13:54:31
102.212.133.0/24 15,501 2026-07-24 13:54:40
102.212.132.0/24 15,440 2026-07-24 13:54:40
197.231.176.0/24 15,355 2026-07-24 13:54:41
41.79.11.0/24 15,349 2026-07-24 13:54:40
41.79.9.0/24 15,241 2026-07-24 13:54:40
41.79.10.0/24 15,233 2026-07-24 13:54:40
197.231.183.0/24 15,151 2026-07-24 13:54:40
41.79.8.0/24 14,768 2026-07-24 13:54:40
197.231.182.0/24 14,660 2026-07-24 13:54:40
102.212.132.0/22 9,471 2026-07-24 13:54:15
197.231.176.0/21 9,333 2026-07-24 13:54:15
41.79.8.0/22 9,118 2026-07-24 13:54:15

Frequently Asked Questions

What is AS37305?

AS37305 is an Autonomous System Number assigned to Frontier Optical Networks 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 AS37305 announce?

AS37305 announces 4.1K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in Kenya.

Who operates AS37305?

AS37305 is operated by Frontier Optical Networks Ltd. The organization is based in Kenya. You can view all IP ranges and related ASNs on the organization page.

What country is AS37305 registered in?

AS37305 is registered in Kenya. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-24 14:40:31 UTC
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