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AS137731
AS137731 Guangdong Huayun Century Technology Co., Ltd.
Huayun - Guangdong Huayun Century Technology Co., Ltd. · registered in China
IPv4 addresses 1,024 2 prefixes · <0.001% of announced IPv4
Rank in China #413 largest network in CN by IPv4 space, of 601 · <0.01% of CN
Rank worldwide #39,133 of 79,396 networks with IPv4
IPv6 none no IPv6 routes announced
Country China 5,117 ASNs registered there
IPv4 prefixes
All 2 prefixes, in address order.
103.62.88.0/23 138.252.72.0/23
Similar-sized networks in China
ASN Name IPv4 addresses
AS131578 #410 BFSUNET - Beijing Foreign Studies University1,024
AS133219 #411 NEWMEDIAEXPRESSCHINA-AS-AP - NewMedia Express Pte Ltd1,024
AS137571 #412 PESYUN-AS-AP - arebz.com1,024
AS137745 #414 AS137745-37 - China Internet Network Information Center1,024
AS137785 #415 Cacloud - CACloud Services (Shanghai) Co., Ltd.1,024
AS137787 #416 Newcampus4-lenovo - Beijing Jingdong Shangke Information Technology Co. Ltd.1,024
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