121.250.88.0/23
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Parent Range | 121.248.0.0/14 |
| Registry | APNIC |
| ID | NJR-CERNET |
WHOIS Details
inetnum: 121.248.0.0 - 121.251.255.255 netname: NJR-CERNET descr: China Education and Research Network descr: Nanjing Regional Network country: CN admin-c: CER-AP tech-c: CER-AP abuse-c: AC1685-AP status: ALLOCATED PORTABLE remarks: origin AS4538 remarks: confederation remarks: -------------------------------------------------------- remarks: To report network abuse, please contact mnt-irt remarks: For troubleshooting, please contact tech-c and admin-c remarks: Report invalid contact via www.apnic.net/invalidcontact remarks: -------------------------------------------------------- mnt-by: APNIC-HM mnt-lower: MAINT-CERNET-AP mnt-routes: MAINT-CERNET-AP mnt-irt: IRT-CERNET-AP last-modified: 2020-09-03T09:15:58Z source: APNIC irt: IRT-CERNET-AP address: Network Center, address: FIT-3-220, Tsinghua Univ address: Beijing 100084, China phone: +86-10-62784301 fax-no: +86-10-62785933 e-mail: abuse@cernet.edu.cn abuse-mailbox: abuse@cernet.edu.cn admin-c: CER-AP tech-c: CER-AP auth: # Filtered remarks: timezone GMT+8 remarks: abuse@cernet.edu.cn was validated on 2026-03-05 mnt-by: MAINT-CERNET-AP last-modified: 2026-03-05T06:39:56Z source: APNIC role: ABUSE CERNETAP country: ZZ address: Network Center, address: FIT-3-220, Tsinghua Univ address: Beijing 100084, China phone: +86-10-62784301 e-mail: abuse@cernet.edu.cn admin-c: CER-AP tech-c: CER-AP nic-hdl: AC1685-AP remarks: Generated from irt object IRT-CERNET-AP remarks: abuse@cernet.edu.cn was validated on 2026-03-05 abuse-mailbox: abuse@cernet.edu.cn mnt-by: APNIC-ABUSE last-modified: 2026-03-05T06:40:20Z source: APNIC role: CERNET Helpdesk address: CERNET Center address: Beijing 100084, China country: CN phone: +86-10-6278-4049 fax-no: +86-10-6278-5933 e-mail: helpdesk@cernet.edu.cn remarks: abuse@cernet.edu.cn admin-c: XL1-CN tech-c: SZ2-AP nic-hdl: CER-AP mnt-by: MAINT-CERNET-AP last-modified: 2020-09-03T09:14:12Z source: APNIC route: 121.250.0.0/15 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2009-01-05T03:10:57Z source: APNIC
Overlapping Ranges
BGP prefixes that contain 121.250.88.0/23
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 121.248.0.0/14 | AS4538 | China Education and Research Network | 262,144 |
Nearby Ranges
BGP prefixes that overlap with 121.250.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 121.248.0.0/14 | AS4538 | China Education and Research Network | 262,144 |
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
1 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 121.250.88.2 |
10.83ms from Qingdao,
CN
|
Other Pingable IPs
Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.
| IP Address | ASN | Details |
|---|---|---|
| 178.148.179.87 |
6.50ms from Belgrade,
RS
|
|
| 93.127.216.231 |
0.74ms from Boston,
US
|
|
| 66.30.28.183 |
6.47ms from Boston,
US
|
|
| 110.32.112.103 |
7.56ms from Brisbane,
AU
|
|
| 75.26.252.39 |
16.63ms from Chicago,
US
|
|
| 123.202.132.55 |
1.15ms from Hong Kong,
HK
|
|
| 39.43.39.231 |
16.90ms from Islamabad,
PK
|
|
| 142.129.42.119 |
4.16ms from Los Angeles,
US
|
|
| 81.35.122.199 |
2.19ms from Madrid,
ES
|
|
| 1.199.159.103 |
7.91ms from Zhengzhou,
CN
|
|
| 62.131.27.167 |
1.63ms from Amsterdam,
NL
|
|
| 157.23.232.55 |
0.56ms from Amsterdam,
NL
|
|
| 52.41.68.71 |
0.14ms from Boardman,
US
|
|
| 97.234.212.39 |
16.34ms from Boston,
US
|
|
| 73.143.44.7 |
7.47ms from Boston,
US
|
|
| 98.243.67.119 |
11.66ms from Flint,
US
|
|
| 189.163.91.199 |
1.07ms from Guadalajara,
MX
|
|
| 93.229.120.135 |
3.67ms from Hamburg,
DE
|
|
| 108.30.94.215 |
2.75ms from New York City,
US
|
|
| 176.136.26.119 |
2.86ms from Paris,
FR
|
|
| 48.220.21.23 |
0.28ms from Paris,
FR
|
|
| 68.3.243.183 |
1.71ms from Phoenix,
US
|
|
| 18.233.77.199 |
0.23ms from Reston,
US
|
|
| 143.95.85.119 |
1.93ms from Salt Lake City,
US
|
|
| 183.116.183.135 |
1.72ms from Seoul,
KR
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Qingdao, CN
What are IP address ranges?
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