121.57.251.0/24

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Summary

IP address summary information
ASN	AS4134 — CHINANET BACKBONE
BGP Prefix	121.56.0.0/15
Pingable IPs	132
Routers	0


121.57.251.0	0.251.57.121.broad.cf.nm.dynamic.163data.com.cn
121.57.251.1	—	Ping
121.57.251.2	2.251.57.121.broad.cf.nm.dynamic.163data.com.cn	Ping
121.57.251.3	—	Ping
121.57.251.4	—
121.57.251.5	—	Ping
121.57.251.6	6.251.57.121.broad.cf.nm.dynamic.163data.com.cn	Ping
121.57.251.7	—	Ping
121.57.251.8	—
121.57.251.9	9.251.57.121.broad.cf.nm.dynamic.163data.com.cn	Ping
121.57.251.10	10.251.57.121.broad.cf.nm.dynamic.163data.com.cn
121.57.251.11	11.251.57.121.broad.cf.nm.dynamic.163data.com.cn	Ping
121.57.251.12	12.251.57.121.broad.cf.nm.dynamic.163data.com.cn
121.57.251.13	13.251.57.121.broad.cf.nm.dynamic.163data.com.cn	Ping
121.57.251.14	14.251.57.121.broad.cf.nm.dynamic.163data.com.cn

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$ traceroute -a -n -q1 -f11 121.57.251.191

traceroute to 121.57.251.191 (121.57.251.191): 64 hops max, 52 byte packets

11 [AS4134] 219.148.167.2 22.022 ms

12 *

13 [AS4134] 121.57.251.191 25.293 ms

Measurement taken from

IPinfo ProbeNet in Beijing, CN

On July 22, 2026

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121.57.251.0/24

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121.57.251.0/24

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