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IPv6 prefix

2001:250:2000:0:0:0:0:0/35

IP Prefix (CIDR)
2001:250:2000:0:0:0:0:0/35
Address Count
9.9035 x 10^27
IP Range
2001:250:2000:0:0:0:0:0 - 2001:250:3fff:ffff:ffff:ffff:ffff:ffff
Subnet calculator
Calculate subnet details
Registered Owners
Registration 1 of 2
Owner
Li Xing
Handle
LX58-AP
Country
China (CN)
Address
China Education and Research Network China Education and Research Network Center Tsinghua University Beijing, 100084 CN
Registry
APNIC
Registered Prefix
2001:250::/32 (2001:250:0:0:0:0:0:0 - 2001:250:ffff:ffff:ffff:ffff:ffff:ffff)
Delegated Prefix
2001:250::/35 (2001:250:0:0:0:0:0:0 - 2001:250:1fff:ffff:ffff:ffff:ffff:ffff)
Registration 2 of 2
Owner
CERNET Helpdesk
Handle
CER-AP
Country
China (CN)
Address
CERNET Center Beijing 100084, China
Registry
APNIC
Registered Prefixes
2001:250:2000::/48 (2001:250:2000:0:0:0:0:0 - 2001:250:2000:ffff:ffff:ffff:ffff:ffff)
2001:250:2401::/48 (2001:250:2401:0:0:0:0:0 - 2001:250:2401:ffff:ffff:ffff:ffff:ffff)
2001:250:2c00::/48 (2001:250:2c00:0:0:0:0:0 - 2001:250:2c00:ffff:ffff:ffff:ffff:ffff)
Delegated Prefix
2001:250:2000::/35 (2001:250:2000:0:0:0:0:0 - 2001:250:3fff:ffff:ffff:ffff:ffff:ffff)
BGP Announcements
Announced Prefix Relationship Origin ASN Description Country First Address Last Address
2001:250:0:0:0:0:0:0/31 Covering AS23910 China Next Generation Internet CERNET2 China (CN) 2001:250:0:0:0:0:0:0 2001:251:ffff:ffff:ffff:ffff:ffff:ffff
2001:250:2000:0:0:0:0:0/44 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2000:0:0:0:0:0 2001:250:200f:ffff:ffff:ffff:ffff:ffff
2001:250:2010:0:0:0:0:0/48 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2010:0:0:0:0:0 2001:250:2010:ffff:ffff:ffff:ffff:ffff
2001:250:2012:0:0:0:0:0/47 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2012:0:0:0:0:0 2001:250:2013:ffff:ffff:ffff:ffff:ffff
2001:250:2015:0:0:0:0:0/48 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2015:0:0:0:0:0 2001:250:2015:ffff:ffff:ffff:ffff:ffff
2001:250:2016:0:0:0:0:0/47 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2016:0:0:0:0:0 2001:250:2017:ffff:ffff:ffff:ffff:ffff
2001:250:2018:0:0:0:0:0/47 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2018:0:0:0:0:0 2001:250:2019:ffff:ffff:ffff:ffff:ffff
2001:250:201a:0:0:0:0:0/48 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:201a:0:0:0:0:0 2001:250:201a:ffff:ffff:ffff:ffff:ffff
2001:250:201c:0:0:0:0:0/47 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:201c:0:0:0:0:0 2001:250:201d:ffff:ffff:ffff:ffff:ffff
2001:250:201f:0:0:0:0:0/48 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:201f:0:0:0:0:0 2001:250:201f:ffff:ffff:ffff:ffff:ffff
2001:250:2020:0:0:0:0:0/45 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2020:0:0:0:0:0 2001:250:2027:ffff:ffff:ffff:ffff:ffff
2001:250:2028:0:0:0:0:0/48 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2028:0:0:0:0:0 2001:250:2028:ffff:ffff:ffff:ffff:ffff
2001:250:202a:0:0:0:0:0/47 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:202a:0:0:0:0:0 2001:250:202b:ffff:ffff:ffff:ffff:ffff
2001:250:202c:0:0:0:0:0/46 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:202c:0:0:0:0:0 2001:250:202f:ffff:ffff:ffff:ffff:ffff
2001:250:2030:0:0:0:0:0/46 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2030:0:0:0:0:0 2001:250:2033:ffff:ffff:ffff:ffff:ffff
2001:250:2035:0:0:0:0:0/48 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2035:0:0:0:0:0 2001:250:2035:ffff:ffff:ffff:ffff:ffff
2001:250:2036:0:0:0:0:0/47 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2036:0:0:0:0:0 2001:250:2037:ffff:ffff:ffff:ffff:ffff
2001:250:2038:0:0:0:0:0/46 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2038:0:0:0:0:0 2001:250:203b:ffff:ffff:ffff:ffff:ffff
2001:250:203c:0:0:0:0:0/48 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:203c:0:0:0:0:0 2001:250:203c:ffff:ffff:ffff:ffff:ffff
2001:250:203e:0:0:0:0:0/47 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:203e:0:0:0:0:0 2001:250:203f:ffff:ffff:ffff:ffff:ffff
2001:250:2041:0:0:0:0:0/48 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2041:0:0:0:0:0 2001:250:2041:ffff:ffff:ffff:ffff:ffff
2001:250:2043:0:0:0:0:0/48 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2043:0:0:0:0:0 2001:250:2043:ffff:ffff:ffff:ffff:ffff
2001:250:2044:0:0:0:0:0/47 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2044:0:0:0:0:0 2001:250:2045:ffff:ffff:ffff:ffff:ffff
2001:250:2047:0:0:0:0:0/48 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2047:0:0:0:0:0 2001:250:2047:ffff:ffff:ffff:ffff:ffff
2001:250:2049:0:0:0:0:0/48 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2049:0:0:0:0:0 2001:250:2049:ffff:ffff:ffff:ffff:ffff
2001:250:204d:0:0:0:0:0/48 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:204d:0:0:0:0:0 2001:250:204d:ffff:ffff:ffff:ffff:ffff
2001:250:204e:0:0:0:0:0/48 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:204e:0:0:0:0:0 2001:250:204e:ffff:ffff:ffff:ffff:ffff
2001:250:2050:0:0:0:0:0/46 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2050:0:0:0:0:0 2001:250:2053:ffff:ffff:ffff:ffff:ffff
2001:250:2054:0:0:0:0:0/47 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2054:0:0:0:0:0 2001:250:2055:ffff:ffff:ffff:ffff:ffff
2001:250:2057:0:0:0:0:0/48 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2057:0:0:0:0:0 2001:250:2057:ffff:ffff:ffff:ffff:ffff
2001:250:2058:0:0:0:0:0/47 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:2058:0:0:0:0:0 2001:250:2059:ffff:ffff:ffff:ffff:ffff
2001:250:205a:0:0:0:0:0/48 More specific AS24355 CERNET2 IX at University of Electronic Science and Technology of China China (CN) 2001:250:205a:0:0:0:0:0 2001:250:205a:ffff:ffff:ffff:ffff:ffff
2001:250:2100:0:0:0:0:0/48 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2100:0:0:0:0:0 2001:250:2100:ffff:ffff:ffff:ffff:ffff
2001:250:2401:0:0:0:0:0/48 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:2401:0:0:0:0:0 2001:250:2401:ffff:ffff:ffff:ffff:ffff
2001:250:2402:0:0:0:0:0/48 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:2402:0:0:0:0:0 2001:250:2402:ffff:ffff:ffff:ffff:ffff
2001:250:2406:0:0:0:0:0/47 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:2406:0:0:0:0:0 2001:250:2407:ffff:ffff:ffff:ffff:ffff
2001:250:2408:0:0:0:0:0/46 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:2408:0:0:0:0:0 2001:250:240b:ffff:ffff:ffff:ffff:ffff
2001:250:240c:0:0:0:0:0/47 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:240c:0:0:0:0:0 2001:250:240d:ffff:ffff:ffff:ffff:ffff
2001:250:240f:0:0:0:0:0/48 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:240f:0:0:0:0:0 2001:250:240f:ffff:ffff:ffff:ffff:ffff
2001:250:2410:0:0:0:0:0/48 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:2410:0:0:0:0:0 2001:250:2410:ffff:ffff:ffff:ffff:ffff
2001:250:2413:0:0:0:0:0/48 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:2413:0:0:0:0:0 2001:250:2413:ffff:ffff:ffff:ffff:ffff
2001:250:2414:0:0:0:0:0/46 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:2414:0:0:0:0:0 2001:250:2417:ffff:ffff:ffff:ffff:ffff
2001:250:2418:0:0:0:0:0/46 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:2418:0:0:0:0:0 2001:250:241b:ffff:ffff:ffff:ffff:ffff
2001:250:241c:0:0:0:0:0/47 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:241c:0:0:0:0:0 2001:250:241d:ffff:ffff:ffff:ffff:ffff
2001:250:241e:0:0:0:0:0/48 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:241e:0:0:0:0:0 2001:250:241e:ffff:ffff:ffff:ffff:ffff
2001:250:2420:0:0:0:0:0/46 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:2420:0:0:0:0:0 2001:250:2423:ffff:ffff:ffff:ffff:ffff
2001:250:2424:0:0:0:0:0/47 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:2424:0:0:0:0:0 2001:250:2425:ffff:ffff:ffff:ffff:ffff
2001:250:2426:0:0:0:0:0/48 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:2426:0:0:0:0:0 2001:250:2426:ffff:ffff:ffff:ffff:ffff
2001:250:2429:0:0:0:0:0/48 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:2429:0:0:0:0:0 2001:250:2429:ffff:ffff:ffff:ffff:ffff
2001:250:242a:0:0:0:0:0/47 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:242a:0:0:0:0:0 2001:250:242b:ffff:ffff:ffff:ffff:ffff
2001:250:242c:0:0:0:0:0/46 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:242c:0:0:0:0:0 2001:250:242f:ffff:ffff:ffff:ffff:ffff
2001:250:2430:0:0:0:0:0/45 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:2430:0:0:0:0:0 2001:250:2437:ffff:ffff:ffff:ffff:ffff
2001:250:2438:0:0:0:0:0/47 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:2438:0:0:0:0:0 2001:250:2439:ffff:ffff:ffff:ffff:ffff
2001:250:243a:0:0:0:0:0/48 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:243a:0:0:0:0:0 2001:250:243a:ffff:ffff:ffff:ffff:ffff
2001:250:243c:0:0:0:0:0/46 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:243c:0:0:0:0:0 2001:250:243f:ffff:ffff:ffff:ffff:ffff
2001:250:2440:0:0:0:0:0/46 More specific AS24356 CERNET2 IX at Chongqing University China (CN) 2001:250:2440:0:0:0:0:0 2001:250:2443:ffff:ffff:ffff:ffff:ffff
2001:250:2800:0:0:0:0:0/46 More specific AS138378 China Education and Research Network (CERNET) China (CN) 2001:250:2800:0:0:0:0:0 2001:250:2803:ffff:ffff:ffff:ffff:ffff
2001:250:2804:0:0:0:0:0/47 More specific AS138378 China Education and Research Network (CERNET) China (CN) 2001:250:2804:0:0:0:0:0 2001:250:2805:ffff:ffff:ffff:ffff:ffff
2001:250:2806:0:0:0:0:0/48 More specific AS138378 China Education and Research Network (CERNET) China (CN) 2001:250:2806:0:0:0:0:0 2001:250:2806:ffff:ffff:ffff:ffff:ffff
2001:250:2808:0:0:0:0:0/45 More specific AS138378 China Education and Research Network (CERNET) China (CN) 2001:250:2808:0:0:0:0:0 2001:250:280f:ffff:ffff:ffff:ffff:ffff
2001:250:2810:0:0:0:0:0/44 More specific AS138378 China Education and Research Network (CERNET) China (CN) 2001:250:2810:0:0:0:0:0 2001:250:281f:ffff:ffff:ffff:ffff:ffff
2001:250:2820:0:0:0:0:0/46 More specific AS138378 China Education and Research Network (CERNET) China (CN) 2001:250:2820:0:0:0:0:0 2001:250:2823:ffff:ffff:ffff:ffff:ffff
2001:250:2825:0:0:0:0:0/48 More specific AS138378 China Education and Research Network (CERNET) China (CN) 2001:250:2825:0:0:0:0:0 2001:250:2825:ffff:ffff:ffff:ffff:ffff
2001:250:2826:0:0:0:0:0/47 More specific AS138378 China Education and Research Network (CERNET) China (CN) 2001:250:2826:0:0:0:0:0 2001:250:2827:ffff:ffff:ffff:ffff:ffff
2001:250:2828:0:0:0:0:0/45 More specific AS138378 China Education and Research Network (CERNET) China (CN) 2001:250:2828:0:0:0:0:0 2001:250:282f:ffff:ffff:ffff:ffff:ffff
2001:250:2830:0:0:0:0:0/46 More specific AS138378 China Education and Research Network (CERNET) China (CN) 2001:250:2830:0:0:0:0:0 2001:250:2833:ffff:ffff:ffff:ffff:ffff
2001:250:2834:0:0:0:0:0/47 More specific AS138378 China Education and Research Network (CERNET) China (CN) 2001:250:2834:0:0:0:0:0 2001:250:2835:ffff:ffff:ffff:ffff:ffff
2001:250:2836:0:0:0:0:0/48 More specific AS138378 China Education and Research Network (CERNET) China (CN) 2001:250:2836:0:0:0:0:0 2001:250:2836:ffff:ffff:ffff:ffff:ffff
2001:250:2838:0:0:0:0:0/47 More specific AS138378 China Education and Research Network (CERNET) China (CN) 2001:250:2838:0:0:0:0:0 2001:250:2839:ffff:ffff:ffff:ffff:ffff
2001:250:283c:0:0:0:0:0/46 More specific AS138378 China Education and Research Network (CERNET) China (CN) 2001:250:283c:0:0:0:0:0 2001:250:283f:ffff:ffff:ffff:ffff:ffff
2001:250:2840:0:0:0:0:0/48 More specific AS138378 China Education and Research Network (CERNET) China (CN) 2001:250:2840:0:0:0:0:0 2001:250:2840:ffff:ffff:ffff:ffff:ffff
2001:250:2c00:0:0:0:0:0/45 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c00:0:0:0:0:0 2001:250:2c07:ffff:ffff:ffff:ffff:ffff
2001:250:2c08:0:0:0:0:0/47 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c08:0:0:0:0:0 2001:250:2c09:ffff:ffff:ffff:ffff:ffff
2001:250:2c0b:0:0:0:0:0/48 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c0b:0:0:0:0:0 2001:250:2c0b:ffff:ffff:ffff:ffff:ffff
2001:250:2c0c:0:0:0:0:0/46 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c0c:0:0:0:0:0 2001:250:2c0f:ffff:ffff:ffff:ffff:ffff
2001:250:2c10:0:0:0:0:0/44 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c10:0:0:0:0:0 2001:250:2c1f:ffff:ffff:ffff:ffff:ffff
2001:250:2c21:0:0:0:0:0/48 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c21:0:0:0:0:0 2001:250:2c21:ffff:ffff:ffff:ffff:ffff
2001:250:2c22:0:0:0:0:0/47 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c22:0:0:0:0:0 2001:250:2c23:ffff:ffff:ffff:ffff:ffff
2001:250:2c24:0:0:0:0:0/46 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c24:0:0:0:0:0 2001:250:2c27:ffff:ffff:ffff:ffff:ffff
2001:250:2c28:0:0:0:0:0/46 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c28:0:0:0:0:0 2001:250:2c2b:ffff:ffff:ffff:ffff:ffff
2001:250:2c2d:0:0:0:0:0/48 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c2d:0:0:0:0:0 2001:250:2c2d:ffff:ffff:ffff:ffff:ffff
2001:250:2c2e:0:0:0:0:0/48 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c2e:0:0:0:0:0 2001:250:2c2e:ffff:ffff:ffff:ffff:ffff
2001:250:2c30:0:0:0:0:0/45 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c30:0:0:0:0:0 2001:250:2c37:ffff:ffff:ffff:ffff:ffff
2001:250:2c38:0:0:0:0:0/47 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c38:0:0:0:0:0 2001:250:2c39:ffff:ffff:ffff:ffff:ffff
2001:250:2c3a:0:0:0:0:0/48 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c3a:0:0:0:0:0 2001:250:2c3a:ffff:ffff:ffff:ffff:ffff
2001:250:2c3c:0:0:0:0:0/47 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c3c:0:0:0:0:0 2001:250:2c3d:ffff:ffff:ffff:ffff:ffff
2001:250:2c3e:0:0:0:0:0/48 More specific AS138381 China Education and Research Network (CERNET) China (CN) 2001:250:2c3e:0:0:0:0:0 2001:250:2c3e:ffff:ffff:ffff:ffff:ffff
2001:250:2e00:0:0:0:0:0/46 More specific AS138442 China Education and Research Network (CERNET) China (CN) 2001:250:2e00:0:0:0:0:0 2001:250:2e03:ffff:ffff:ffff:ffff:ffff