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AS59103 SoftEther Corporation

SOFTETHER - SoftEther Corporation · registered in Japan

IPv4 addresses2,5605 prefixes · <0.001% of announced IPv4
Rank in Japan#436largest network in JP by IPv4 space, of 724 · <0.01% of JP
Rank worldwide#19,810of 79,396 networks with IPv4
IPv616,895 x /4816 prefixes
CountryJapan745 ASNs registered there
Open AS59103 in ASN lookup Look up an IP in this network (103.41.61.1) All networks in Japan

IPv4 prefixes

All 5 prefixes, in address order.

  • 103.41.61.0/24
  • 103.41.62.0/23
  • 202.222.12.0/22
  • 219.97.64.0/23
  • 219.100.36.0/24

IPv6 prefixes

All 16 prefixes.

  • 2401:af80:8000::/36
  • 2401:af80:9000::/44
  • 2401:af80:9010::/46
  • 2401:af80:9014::/48
  • 2401:af80:9016::/47
  • 2401:af80:9018::/45
  • 2401:af80:9020::/43
  • 2401:af80:9040::/42
  • 2401:af80:9080::/41
  • 2401:af80:9100::/40
  • 2401:af80:9200::/39
  • 2401:af80:9400::/38
  • 2401:af80:9800::/37
  • 2401:af80:a000::/35
  • 2401:af80:c000::/40
  • 2401:af80:c500::/40

Other ASNs named SoftEther Corporation

1 other network uses the same organisation name; together with AS59103 they announce 68,864 IPv4 addresses.

ASNNameIPv4 addresses
AS150363THIN-NET - SoftEther Corporation JP66,304

Similar-sized networks in Japan

ASNNameIPv4 addresses
AS7663#433 FFNET - FUJI NEXTERA LABO INC.2,816
AS59129#434 LOGICLINKS - LogicLinks, Inc.2,816
AS55898#435 YAHOO-CORP - LY Corporation2,560
AS23632#437 TVT-NET - TVT Tsuyama Co.,Ltd.2,560
AS37891#438 JTIS - JR TOKAI Information Systems Company2,560
AS58653#439 VolvoITJapan - UD Trucks Corporation, Volvo Information Technology Japan2,560

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