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AS137445
AS137445 PF LINK SYSTEMS
AS-PFLINK-JP - PF LINK SYSTEMS · registered in Japan
IPv4 addresses 5,888 10 prefixes · <0.001% of announced IPv4
Rank in Japan #368 largest network in JP by IPv4 space, of 724 · <0.01% of JP
Rank worldwide #12,704 of 79,396 networks with IPv4
IPv6 none no IPv6 routes announced
Country Japan 745 ASNs registered there
IPv4 prefixes
All 10 prefixes, in address order.
45.112.128.0/22 103.48.164.0/22 103.51.36.0/22 103.95.30.0/24 103.108.236.0/23 103.108.238.0/24 103.205.72.0/22 103.215.173.0/24 103.218.6.0/24 123.253.218.0/24
Similar-sized networks in Japan
ASN Name IPv4 addresses
AS58788 #365 CHIRORO - Chiroro-Net Co.,Ltd.6,144
AS59094 #366 S2-NET - esu2 Corporation6,144
AS131896 #367 SSI-Lab - SSI Lab Inc.6,144
AS139468 #369 DCI-AS-AP - DC Communications Inc.5,632
AS131893 #370 RICOH-NET - RICOH Company, Ltd.5,632
AS24284 #371 CYBERAGENT - CyberAgent, Inc.5,632
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