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AS17421 Mobile Business Group

EMOME-NET - Mobile Business Group · registered in Taiwan

IPv4 addresses1,655,80861 prefixes · 0.053% of announced IPv4
Rank in Taiwan#4largest network in TW by IPv4 space, of 237 · 4.99% of TW
Rank worldwide#236of 79,396 networks with IPv4
IPv6512 x /32 (33,554,432 x /48)43 prefixes
CountryTaiwan288 ASNs registered there
Open AS17421 in ASN lookup Look up an IP in this network (42.70.0.1) All networks in Taiwan

IPv4 prefixes

All 61 prefixes, in address order.

  • 42.70.0.0/15
  • 42.72.0.0/13
  • 111.70.0.0/18
  • 111.71.0.0/17
  • 111.71.128.0/18
  • 111.71.193.0/24
  • 111.71.194.0/23
  • 111.71.196.0/23
  • 111.71.208.0/23
  • 111.71.212.0/22
  • 111.71.216.0/23
  • 111.71.218.0/24
  • 111.71.220.0/22
  • 111.71.225.0/24
  • 111.71.226.0/23
  • 111.71.228.0/23
  • 111.71.230.0/24
  • 111.71.240.0/24
  • 111.71.242.0/23
  • 111.71.248.0/24
  • 111.71.252.0/23
  • 111.71.254.0/24
  • 111.80.0.0/14
  • 114.136.0.0/15
  • 116.59.0.0/24
  • 116.59.2.0/24
  • 116.59.4.0/24
  • 116.59.6.0/24
  • 116.59.8.0/21
  • 116.59.16.0/20
  • 116.59.48.0/20
  • 116.59.64.0/18
  • 116.59.128.0/17
  • 211.79.33.0/24
  • 211.79.34.0/23
  • 211.79.36.0/23
  • 211.79.38.0/24
  • 211.79.40.0/23
  • 211.79.42.0/24
  • 211.79.47.0/24
  • 221.120.0.0/20
  • 221.120.19.0/24
  • 221.120.20.0/23
  • 221.120.23.0/24
  • 221.120.30.0/24
  • 221.120.32.0/23
  • 221.120.34.0/24
  • 221.120.36.0/23
  • 221.120.38.0/24
  • 221.120.40.0/21
  • 221.120.48.0/22
  • 221.120.56.0/22
  • 221.120.72.0/21
  • 221.120.80.0/22
  • 223.136.0.0/14
  • 223.140.0.0/15
  • 223.143.0.0/17
  • 223.143.128.0/18
  • 223.143.192.0/19
  • 223.143.224.0/20
  • 223.143.240.0/21

IPv6 prefixes

All 43 prefixes.

  • 2001:b400::/33
  • 2001:b400:8000::/34
  • 2001:b400:c000::/36
  • 2001:b400:d000::/39
  • 2001:b400:d200::/44
  • 2001:b400:d210::/44
  • 2001:b400:d220::/43
  • 2001:b400:d240::/42
  • 2001:b400:d280::/41
  • 2001:b400:d300::/40
  • 2001:b400:d400::/44
  • 2001:b400:d410::/44
  • 2001:b400:d420::/43
  • 2001:b400:d440::/42
  • 2001:b400:d480::/41
  • 2001:b400:d500::/40
  • 2001:b400:d600::/39
  • 2001:b400:d800::/37
  • 2001:b400:e000::/36
  • 2001:b400:f000::/39
  • 2001:b400:f200::/44
  • 2001:b400:f210::/44
  • 2001:b400:f220::/43
  • 2001:b400:f240::/42
  • 2001:b400:f280::/41
  • 2001:b400:f300::/40
  • 2001:b400:f400::/44
  • 2001:b400:f410::/44
  • 2001:b400:f420::/43
  • 2001:b400:f440::/42
  • 2001:b400:f480::/41
  • 2001:b400:f500::/40
  • 2001:b400:f600::/39
  • 2001:b400:f800::/37
  • 2001:b401::/32
  • 2001:b402::/31
  • 2001:b404::/30
  • 2001:b408::/29
  • 2001:b410::/28
  • 2001:b420::/27
  • 2001:b440::/26
  • 2001:b480::/25
  • 2001:b500::/24

Similar-sized networks in Taiwan

ASNNameIPv4 addresses
AS3462#1 HINET - Data Communication Business Group12,223,487
AS1659#2 ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center5,495,808
AS9674#3 FET-TW - Far EastTone Telecommunication Co., Ltd.1,832,960
AS4780#5 SEEDNET - Digital United Inc.1,618,176
AS9924#6 TFN-TW - Taiwan Fixed Network, Telco and Network Service Provider.1,512,192
AS9416#7 MULTIMEDIA-AS-AP - Hoshin Multimedia Center Inc.1,220,864

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