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Autonomous System

AS204535

Tan Kok Feng

Announced IPs
3,584
CIDR prefixes
14
ASN
AS204535

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.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

AS204535 — global IP footprint

Cities where AS204535 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
46.203.37.0/24 256
0.0%
Tan Kok Feng UA
74.1.118.0/24 256
0.0%
Tan Kok Feng US
76.9.98.0/24 256
0.0%
Tan Kok Feng US
81.168.109.0/24 256
2.0%
Tan Kok Feng GB
82.153.64.0/24 256
0.0%
GigaPacket LLC GB England Southall
88.209.216.0/24 256
0.0%
Tan Kok Feng HU
89.213.43.0/24 256
0.0%
Tan Kok Feng GB
91.124.24.0/24 256
0.0%
Tan Kok Feng UA
104.241.171.0/24 256
0.0%
Tan Kok Feng CA
143.20.53.0/24 256
0.0%
Tan Kok Feng US
143.20.132.0/24 256
0.0%
Tan Kok Feng US
178.95.7.0/24 256
0.0%
Tan Kok Feng UA
191.96.80.0/24 256
0.0%
Tan Kok Feng AE
198.1.240.0/24 256
0.0%
Tan Kok Feng CA

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS204535 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
198.1.240.0/24 6,978 2026-07-13 06:46:32
81.168.109.0/24 5,271 2026-05-29 16:15:32
143.20.53.0/24 4,368 2026-05-29 16:15:32
143.20.132.0/24 4,049 2026-05-29 16:15:32
82.153.64.0/24 3,988 2026-05-29 16:15:32
46.203.37.0/24 3,590 2026-06-08 11:20:48
91.124.24.0/24 3,522 2026-06-08 11:27:24
88.209.216.0/24 3,262 2026-06-29 09:12:17
89.213.43.0/24 2,482 2026-05-27 01:00:22
76.9.98.0/24 1,825 2026-06-29 09:12:17
178.95.7.0/24 1,595 2026-06-29 09:12:17
191.96.80.0/24 1,574 2026-06-29 09:12:17

Frequently Asked Questions

What is AS204535?

AS204535 is an Autonomous System Number assigned to Tan Kok Feng. 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 AS204535 announce?

AS204535 announces 3.6K IPv4 addresses distributed across 14 routed CIDR prefixes. The network is registered in United States.

Who operates AS204535?

AS204535 is operated by Tan Kok Feng. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS204535 registered in?

AS204535 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-23 15:25:31 UTC
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