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Autonomous System

AS131584

Taiwan Intelligent Fiber Optic Network Co.,Ltd.

Announced IPs
41,472
CIDR prefixes
27
ASN
AS131584

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 NSP
Geographic scope Regional
Traffic ratio Mostly Inbound
Peering policy Open

Present at 2 internet exchanges: TWIX, TPIX-TW

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
111.235.192.0/18 16.4K
0.5%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW Taipei City Taipei
101.3.32.0/19 8.2K
0.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW Taipei City Taipei
101.3.96.0/21 2.0K
0.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
106.105.176.0/21 2.0K
28.6%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
111.125.128.0/21 2.0K
0.2%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW Taipei City Taipei
210.203.56.0/21 2.0K
10.9%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW Taipei City Taipei
43.255.12.0/22 1.0K
0.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
101.3.0.0/22 1.0K
5.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
101.3.252.0/22 1.0K
0.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
103.31.196.0/22 1.0K
0.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
103.226.212.0/22 1.0K
88.3%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW New Taipei City New Taipei City
210.203.56.0/22 1.0K
6.9%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
101.3.4.0/23 512
13.3%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
101.3.10.0/23 512
0.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
101.3.14.0/23 512
0.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
101.3.104.0/23 512
0.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
101.3.254.0/23 512
0.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
210.203.62.0/23 512
17.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
101.3.6.0/24 256
0.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
101.3.9.0/24 256
0.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
101.3.12.0/24 256
0.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
101.3.16.0/24 256
0.4%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
101.3.104.0/24 256
0.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
101.3.251.0/24 256
0.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
101.3.253.0/24 256
0.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
210.203.52.0/24 256
22.7%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW
210.203.61.0/24 256
16.0%
Taiwan Intelligent Fiber Optic Network Co.,Ltd. TW

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS131584 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
101.3.252.0/24 70,872 2026-09-15 03:32:07
101.3.96.0/21 68,479 2026-09-15 03:32:07
101.3.48.0/20 56,784 2026-09-15 03:32:07
101.3.2.0/23 56,382 2026-09-15 03:32:07
111.125.128.0/21 49,023 2026-09-15 03:32:07
111.235.232.0/21 48,984 2026-09-15 03:32:07
101.3.14.0/24 48,569 2026-09-15 03:32:07
101.3.253.0/24 43,235 2026-09-15 03:32:07
43.255.12.0/22 38,372 2026-09-15 03:32:07
101.3.32.0/20 38,042 2026-09-15 03:32:07
103.31.196.0/22 38,039 2026-09-15 03:32:07
111.235.216.0/21 35,669 2026-09-15 03:32:07
111.235.248.0/21 34,592 2026-09-15 03:32:07
111.235.244.0/22 34,570 2026-09-15 03:32:07
101.3.9.0/24 34,449 2026-09-15 03:32:07
101.3.4.0/23 34,428 2026-09-15 03:32:07
111.235.241.0/24 34,363 2026-09-15 03:32:07
111.235.208.0/21 30,392 2026-09-15 03:34:51
101.3.6.0/24 29,418 2026-09-15 03:34:31
210.203.56.0/22 26,294 2026-09-15 03:32:11
210.203.60.0/22 26,171 2026-09-15 03:32:11
111.235.243.0/24 25,561 2026-09-15 03:34:34
106.105.176.0/23 23,249 2026-09-15 03:34:34
106.105.183.0/24 23,240 2026-09-15 03:34:34
106.105.180.0/24 23,218 2026-09-15 03:34:34
106.105.178.0/24 23,201 2026-09-15 03:34:34
106.105.182.0/24 23,176 2026-09-15 03:34:34
106.105.181.0/24 23,162 2026-09-15 03:34:34
106.105.179.0/24 23,138 2026-09-15 03:34:34
101.3.251.0/24 21,416 2026-09-15 03:34:31
103.226.214.0/24 19,775 2026-09-15 03:34:49
103.226.215.0/24 19,623 2026-09-15 03:34:49
101.3.104.0/24 19,077 2026-09-15 03:34:31
101.3.1.0/24 18,330 2026-09-15 03:32:11
101.3.0.0/24 18,254 2026-09-15 03:32:11
101.3.12.0/24 18,242 2026-09-15 03:32:11
101.3.11.0/24 18,237 2026-09-15 03:32:11
111.235.240.0/24 18,228 2026-09-15 03:32:11
101.3.254.0/24 17,737 2026-09-15 03:32:11
103.226.212.0/23 16,822 2026-09-15 03:32:11
101.3.10.0/24 16,615 2026-09-15 03:32:11
101.3.16.0/24 16,560 2026-09-15 03:32:11
101.3.15.0/24 16,548 2026-09-15 03:32:11
111.235.242.0/24 16,539 2026-09-15 03:32:11
111.235.192.0/20 15,088 2026-09-15 03:34:34
101.3.255.0/24 14,809 2026-09-15 03:34:31
210.203.52.0/24 14,588 2026-09-15 03:34:42
111.235.224.0/21 13,184 2026-09-15 03:34:34
101.3.105.0/24 5,304 2026-09-15 03:34:31
101.3.48.0/21 4,205 2026-09-15 00:28:18

Showing top 50 of 55 announced prefixes by sample volume.

Frequently Asked Questions

What is AS131584?

AS131584 is an Autonomous System Number assigned to Taiwan Intelligent Fiber Optic Network Co.,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 AS131584 announce?

AS131584 announces 41.5K IPv4 addresses distributed across 27 routed CIDR prefixes. The network is registered in Taiwan.

Who operates AS131584?

AS131584 is operated by Taiwan Intelligent Fiber Optic Network Co.,Ltd.. The organization is based in Taiwan. You can view all IP ranges and related ASNs on the organization page.

What country is AS131584 registered in?

AS131584 is registered in Taiwan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-15 03:39:05 UTC
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