AS18429 Extra-Lan Technologies Co., LTD

EXTRALAN-TW - Extra-Lan Technologies Co., LTD · registered in Taiwan

IPv4 addresses43,00812 prefixes · 0.001% of announced IPv4

Rank in Taiwan#42largest network in TW by IPv4 space, of 237 · 0.13% of TW

Rank worldwide#4,171of 79,396 networks with IPv4

IPv64,098 x /4814 prefixes

CountryTaiwan288 ASNs registered there

Open AS18429 in ASN lookup Look up an IP in this network (27.147.0.1) All networks in Taiwan

IPv4 prefixes

All 12 prefixes, in address order.

27.147.0.0/21
27.147.8.0/22
27.147.12.0/22
27.147.16.0/21
27.147.24.0/22
27.147.28.0/22
27.147.32.0/19
45.64.232.0/22
61.57.128.0/19
103.224.200.0/22
123.50.32.0/19
124.155.160.0/19

IPv6 prefixes

All 14 prefixes.

2407:4900:1000::/37
2407:4900:1800::/38
2407:4900:1c00::/46
2407:4900:1c04::/47
2407:4900:1c06::/47
2407:4900:1c08::/45
2407:4900:1c10::/44
2407:4900:1c20::/43
2407:4900:1c40::/42
2407:4900:1c80::/41
2407:4900:1d00::/40
2407:4900:1e00::/39
2407:4900:fd01::/48
2407:4900:ff01::/48

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ASNNameIPv4 addresses

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AS17408#40 ABOVE-AS-AP - AboveNet Communications Taiwan51,712

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AS131584#43 TAIFO-AS-TW - Taiwan Intelligent Fiber Optic Network Co.,Ltd.41,472

AS131628#44 taifucloud-as-tw - Tai-Fu Cloud Co., Ltd.41,472

AS4783#45 SYSNET-AS1 - SYSTEX CORPORATION40,960

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources