AS139721 HeFei

CHINATELECOM-AnHui-HeFei-MAN - HeFei · registered in China

IPv4 addresses2,0481 prefixes · <0.001% of announced IPv4

Rank in China#331largest network in CN by IPv4 space, of 601 · <0.01% of CN

Rank worldwide#22,558of 79,396 networks with IPv4

IPv616 x /481 prefixes

CountryChina5,117 ASNs registered there

Open AS139721 in ASN lookup Look up an IP in this network (124.73.136.1) All networks in China

IPv4 prefixes

All 1 prefix, in address order.

124.73.136.0/21

IPv6 prefixes

All 1 prefix.

240e:6:d800::/44

Similar-sized networks in China

ASNNameIPv4 addresses

AS136189#328 OPERA-AS-AP - Opera Software Technology (Beijing) Co., Ltd.2,048

AS24489#329 TEIN2-NORTH-AP - Trans-Eurasia Information Network (TEIN2) - North2,048

AS24490#330 TEIN2-SG-AP - Trans-Eurasia Information Network (TEIN2) - SG2,048

AS24409#332 CNNIC-CRITICAL-AP - China Internet Network Infomation Center2,048

AS58811#333 AP-CONAC-AS-AP - CONAC (China Organizational Name Administration Center)2,048

AS151295#334 JSYinsuyun - Jiangsu Yinsuyun Network Technology Co. , Ltd.2,048

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