AS Name Org Name IPv4Prefixes IPv6Prefixes IPv4 NUMs IPv6 NUMs(/64) Registry Region Looking Glass
CNGI-BJIX-AS-AP China Next Generation Internet Beijing IX 3 2 768 4,295,032,832 China
768 IPv4 Addresses
CIDR Description IP Num
210.25.186.0/24 CERNET-CN-PI China Education and Research Network 256
210.25.187.0/24 CERNET-CN-PI China Education and Research Network 256
210.25.189.0/24 CERNET-CN-PI China Education and Research Network 256
CIDR Description IP NUMs(prefix /64)
2001:252::/32 CNGIIGN-CN-20070316 CNGI International Gateway Network (CNGIIGN) 4294967296
2001:7fa:5::/48 CNGI-BJIX-CN China Next Generation Internet Beijing IX 65536
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS4538 ERX-CERNET-BKB - China Education and Research Network Center, CN China 18,350,336 17,592,186,109,952 IPv4 IPv4 IPv6 IPv6
AS7497 CSTNET-AS-AP - Computer Network Information Center, CN China 1,732,864 77,309,411,328 IPv4 IPv4
AS7660 APAN-JP - Asia Pacific Advanced Network - Japan, JP Japan 5,376 553,648,128 IPv4 IPv4
AS20965 GEANT - GEANT Vereniging, GB United Kingdom 9,216 4,294,967,296 IPv4 IPv4
AS22388 TRANSPAC - Indiana University, US United States 256 65,536 IPv4 IPv4
AS2497 IIJ - Internet Initiative Japan Inc., JP Japan 3,802,368 17,716,740,096 IPv6 IPv6
AS6939 HURRICANE - Hurricane Electric LLC, US United States 527,872 282,708,169,719,808 IPv6 IPv6
AS293 ESNET, US United States 67,072 4,294,967,296 IPv4 IPv4
AS11537 ABILENE - Internet2, US United States 9,728 4,294,967,296 IPv4 IPv4
AS24489 TEIN2-NORTH-AP - Trans-Eurasia Information Network (TEIN2) - North, CN China 4,096 4,294,967,296 IPv4 IPv4
AS1273 CW - Vodafone Group PLC, GB United Kingdom 1,363,712 8,796,093,022,208 IPv6 IPv6
AS3491 BTN-ASN - PCCW Global, Inc., US United States 1,037,824 12,884,901,888 IPv6 IPv6
AS4635 HKIX-RS1 - The Hong Kong Internet Exchange Limited, HK Hong Kong 0 0 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS59265 CT-CNGI - China telecom – China Next Generation Internet, CN China 0 4,294,967,296 IPv6 IPv6
AS9800 UNICOM - CHINA UNICOM, CN China 0 4,294,967,296 IPv6 IPv6
AS7497 CSTNET-AS-AP - Computer Network Information Center, CN China 1,732,864 77,309,411,328 IPv4 IPv4 IPv6 IPv6
AS9401 NLC-CN-AS - National Library of China, CN China 768 0 IPv4 IPv4
AS23910 CNGI-CERNET2-AS-AP - China Next Generation Internet CERNET2, CN China 7,424 17,609,365,913,600 IPv4 IPv4 IPv6 IPv6
AS24489 TEIN2-NORTH-AP - Trans-Eurasia Information Network (TEIN2) - North, CN China 4,096 4,294,967,296 IPv4 IPv4
AS139774 CERNET-IVION-AS - China Education and Research Network (CERNET), CN China 0 0 IPv4 IPv4
AS45110 CNNIC-CBCnet-AP - Beijing Tian Wei Xin Tong technology corp. limited., CN China 14,336 4,294,967,296 IPv6 IPv6
AS4538 ERX-CERNET-BKB - China Education and Research Network Center, CN China 18,350,336 17,592,186,109,952 IPv4 IPv4 IPv6 IPv6
as-block:       AS23552 - AS24575
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
remarks:        AS23889 has been transfered to AfriNIC
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2009-09-29T06:04:16Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         [email protected]
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         [email protected]
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC


as-block:       AS23854 - AS23944
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2008-09-04T06:40:26Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         [email protected]
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         [email protected]
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC



aut-num:        AS23911
as-name:        CNGI-BJIX-AS-AP
descr:          China Next Generation Internet Beijing IX
descr:          CNGI-CERNET
descr:          Beijing 100084, China
country:        CN
import:         from AS4538
                action pref=10;
                accept ANY
import:         from AS4839
                action pref=10;
                accept ANY
import:         from AS4840
                action pref=10;
                accept ANY
import:         from AS9406
                action pref=10;
                accept ANY
import:         from AS9407
                action pref=10;
                accept ANY
import:         from AS6939
                action pref=10;
                accept ANY
export:         to AS9406
                announce AS23911 AS4538 AS9407 AS4839 AS4840
export:         to AS4538
                announce AS23911 AS9406 AS9407 AS4839 AS4840
export:         to AS9407
                announce AS23911 AS4538 AS9406 AS4839 AS4840
export:         to AS4840
                announce AS23911 AS4538 AS9406 AS9407 AS4839
export:         to AS4839
                announce AS23911 AS4538 AS9406 AS9407 AS4840
default:        to AS4538
                action pref=10;
                networks ANY
admin-c:        CER-AP
tech-c:         CER-AP
remarks:        Multihome portion of CERNET
mnt-by:         APNIC-HM
mnt-irt:        IRT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-lower:      MAINT-CERNET-AP
last-modified:  2019-06-09T22:41:05Z
mp-export:      afi ipv6 to AS6939
                announce AS23911:AS-CUSTOMERS-V6
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
fax-no:         +86-10-62785933
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
mnt-by:         MAINT-CERNET-AP
last-modified:  2010-11-26T03:14:01Z
source:         APNIC

role:           CERNET Helpdesk
address:        Room 224, Main Building
address:        Tsinghua University
address:        Beijing 100084, China
country:        CN
phone:          +86-10-6278-4049
fax-no:         +86-10-6278-5933
e-mail:         [email protected]
remarks:        [email protected]
admin-c:        XL1-CN
tech-c:         SZ2-AP
nic-hdl:        CER-AP
remarks:        Point of Contact for admin-c
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-06T00:10:30Z
source:         APNIC