Summary

ASN	AS4837 CHINA UNICOM China169 Backbone
BGP	121.16.0.0/13
IPs with RDNS	256
Hosted Domains	0
Pingable IPs	0
Router IPs	0


121.18.239.0	hebei.18.121.in-addr.arpa	0
121.18.239.1	hebei.18.121.in-addr.arpa	0
121.18.239.2	hebei.18.121.in-addr.arpa	0
121.18.239.3	hebei.18.121.in-addr.arpa	0
121.18.239.4	hebei.18.121.in-addr.arpa	0
121.18.239.5	hebei.18.121.in-addr.arpa	0
121.18.239.6	hebei.18.121.in-addr.arpa	0
121.18.239.7	hebei.18.121.in-addr.arpa	0
121.18.239.8	hebei.18.121.in-addr.arpa	0
121.18.239.9	hebei.18.121.in-addr.arpa	0
121.18.239.10	hebei.18.121.in-addr.arpa	0
121.18.239.11	hebei.18.121.in-addr.arpa	0
121.18.239.12	hebei.18.121.in-addr.arpa	0
121.18.239.13	hebei.18.121.in-addr.arpa	0
121.18.239.14	hebei.18.121.in-addr.arpa	0
121.18.239.15	hebei.18.121.in-addr.arpa	0
121.18.239.16	hebei.18.121.in-addr.arpa	0
121.18.239.17	hebei.18.121.in-addr.arpa	0
121.18.239.18	hebei.18.121.in-addr.arpa	0
121.18.239.19	hebei.18.121.in-addr.arpa	0
121.18.239.20	hebei.18.121.in-addr.arpa	0
121.18.239.21	hebei.18.121.in-addr.arpa	0
121.18.239.22	hebei.18.121.in-addr.arpa	0
121.18.239.23	hebei.18.121.in-addr.arpa	0
121.18.239.24	hebei.18.121.in-addr.arpa	0
121.18.239.25	hebei.18.121.in-addr.arpa	0
121.18.239.26	hebei.18.121.in-addr.arpa	0
121.18.239.27	hebei.18.121.in-addr.arpa	0
121.18.239.28	hebei.18.121.in-addr.arpa	0
121.18.239.29	hebei.18.121.in-addr.arpa	0
121.18.239.30	hebei.18.121.in-addr.arpa	0
121.18.239.31	hebei.18.121.in-addr.arpa	0
121.18.239.32	hebei.18.121.in-addr.arpa	0
121.18.239.33	hebei.18.121.in-addr.arpa	0
121.18.239.34	hebei.18.121.in-addr.arpa	0
121.18.239.35	hebei.18.121.in-addr.arpa	0
121.18.239.36	hebei.18.121.in-addr.arpa	0
121.18.239.37	hebei.18.121.in-addr.arpa	0
121.18.239.38	hebei.18.121.in-addr.arpa	0
121.18.239.39	hebei.18.121.in-addr.arpa	0
121.18.239.40	hebei.18.121.in-addr.arpa	0
121.18.239.41	hebei.18.121.in-addr.arpa	0
121.18.239.42	hebei.18.121.in-addr.arpa	0
121.18.239.43	hebei.18.121.in-addr.arpa	0
121.18.239.44	hebei.18.121.in-addr.arpa	0
121.18.239.45	hebei.18.121.in-addr.arpa	0
121.18.239.46	hebei.18.121.in-addr.arpa	0
121.18.239.47	hebei.18.121.in-addr.arpa	0
121.18.239.48	hebei.18.121.in-addr.arpa	0
121.18.239.49	hebei.18.121.in-addr.arpa	0
121.18.239.50	hebei.18.121.in-addr.arpa	0
121.18.239.51	hebei.18.121.in-addr.arpa	0
121.18.239.52	hebei.18.121.in-addr.arpa	0
121.18.239.53	hebei.18.121.in-addr.arpa	0
121.18.239.54	hebei.18.121.in-addr.arpa	0
121.18.239.55	hebei.18.121.in-addr.arpa	0
121.18.239.56	hebei.18.121.in-addr.arpa	0
121.18.239.57	hebei.18.121.in-addr.arpa	0
121.18.239.58	hebei.18.121.in-addr.arpa	0
121.18.239.59	hebei.18.121.in-addr.arpa	0
121.18.239.60	hebei.18.121.in-addr.arpa	0
121.18.239.61	hebei.18.121.in-addr.arpa	0
121.18.239.62	hebei.18.121.in-addr.arpa	0
121.18.239.63	hebei.18.121.in-addr.arpa	0
121.18.239.64	hebei.18.121.in-addr.arpa	0
121.18.239.65	hebei.18.121.in-addr.arpa	0
121.18.239.66	hebei.18.121.in-addr.arpa	0
121.18.239.67	hebei.18.121.in-addr.arpa	0
121.18.239.68	hebei.18.121.in-addr.arpa	0
121.18.239.69	hebei.18.121.in-addr.arpa	0
121.18.239.70	hebei.18.121.in-addr.arpa	0
121.18.239.71	hebei.18.121.in-addr.arpa	0
121.18.239.72	hebei.18.121.in-addr.arpa	0
121.18.239.73	hebei.18.121.in-addr.arpa	0
121.18.239.74	hebei.18.121.in-addr.arpa	0
121.18.239.75	hebei.18.121.in-addr.arpa	0
121.18.239.76	hebei.18.121.in-addr.arpa	0
121.18.239.77	hebei.18.121.in-addr.arpa	0
121.18.239.78	hebei.18.121.in-addr.arpa	0
121.18.239.79	hebei.18.121.in-addr.arpa	0
121.18.239.80	hebei.18.121.in-addr.arpa	0
121.18.239.81	hebei.18.121.in-addr.arpa	0
121.18.239.82	hebei.18.121.in-addr.arpa	0
121.18.239.83	hebei.18.121.in-addr.arpa	0
121.18.239.84	hebei.18.121.in-addr.arpa	0
121.18.239.85	hebei.18.121.in-addr.arpa	0
121.18.239.86	hebei.18.121.in-addr.arpa	0
121.18.239.87	hebei.18.121.in-addr.arpa	0
121.18.239.88	hebei.18.121.in-addr.arpa	0
121.18.239.89	hebei.18.121.in-addr.arpa	0
121.18.239.90	hebei.18.121.in-addr.arpa	0
121.18.239.91	hebei.18.121.in-addr.arpa	0
121.18.239.92	hebei.18.121.in-addr.arpa	0
121.18.239.93	hebei.18.121.in-addr.arpa	0
121.18.239.94	hebei.18.121.in-addr.arpa	0
121.18.239.95	hebei.18.121.in-addr.arpa	0
121.18.239.96	hebei.18.121.in-addr.arpa	0
121.18.239.97	hebei.18.121.in-addr.arpa	0
121.18.239.98	hebei.18.121.in-addr.arpa	0
121.18.239.99	hebei.18.121.in-addr.arpa	0
121.18.239.100	hebei.18.121.in-addr.arpa	0
121.18.239.101	hebei.18.121.in-addr.arpa	0
121.18.239.102	hebei.18.121.in-addr.arpa	0
121.18.239.103	hebei.18.121.in-addr.arpa	0
121.18.239.104	hebei.18.121.in-addr.arpa	0
121.18.239.105	hebei.18.121.in-addr.arpa	0
121.18.239.106	hebei.18.121.in-addr.arpa	0
121.18.239.107	hebei.18.121.in-addr.arpa	0
121.18.239.108	hebei.18.121.in-addr.arpa	0
121.18.239.109	hebei.18.121.in-addr.arpa	0
121.18.239.110	hebei.18.121.in-addr.arpa	0
121.18.239.111	hebei.18.121.in-addr.arpa	0
121.18.239.112	hebei.18.121.in-addr.arpa	0
121.18.239.113	hebei.18.121.in-addr.arpa	0
121.18.239.114	hebei.18.121.in-addr.arpa	0
121.18.239.115	hebei.18.121.in-addr.arpa	0
121.18.239.116	hebei.18.121.in-addr.arpa	0
121.18.239.117	hebei.18.121.in-addr.arpa	0
121.18.239.118	hebei.18.121.in-addr.arpa	0
121.18.239.119	hebei.18.121.in-addr.arpa	0
121.18.239.120	hebei.18.121.in-addr.arpa	0
121.18.239.121	hebei.18.121.in-addr.arpa	0
121.18.239.122	hebei.18.121.in-addr.arpa	0
121.18.239.123	hebei.18.121.in-addr.arpa	0
121.18.239.124	hebei.18.121.in-addr.arpa	0
121.18.239.125	hebei.18.121.in-addr.arpa	0
121.18.239.126	hebei.18.121.in-addr.arpa	0
121.18.239.127	hebei.18.121.in-addr.arpa	0
121.18.239.128	hebei.18.121.in-addr.arpa	0
121.18.239.129	hebei.18.121.in-addr.arpa	0
121.18.239.130	hebei.18.121.in-addr.arpa	0
121.18.239.131	hebei.18.121.in-addr.arpa	0
121.18.239.132	hebei.18.121.in-addr.arpa	0
121.18.239.133	hebei.18.121.in-addr.arpa	0
121.18.239.134	hebei.18.121.in-addr.arpa	0
121.18.239.135	hebei.18.121.in-addr.arpa	0
121.18.239.136	hebei.18.121.in-addr.arpa	0
121.18.239.137	hebei.18.121.in-addr.arpa	0
121.18.239.138	hebei.18.121.in-addr.arpa	0
121.18.239.139	hebei.18.121.in-addr.arpa	0
121.18.239.140	hebei.18.121.in-addr.arpa	0
121.18.239.141	hebei.18.121.in-addr.arpa	0
121.18.239.142	hebei.18.121.in-addr.arpa	0
121.18.239.143	hebei.18.121.in-addr.arpa	0
121.18.239.144	hebei.18.121.in-addr.arpa	0
121.18.239.145	hebei.18.121.in-addr.arpa	0
121.18.239.146	hebei.18.121.in-addr.arpa	0
121.18.239.147	hebei.18.121.in-addr.arpa	0
121.18.239.148	hebei.18.121.in-addr.arpa	0
121.18.239.149	hebei.18.121.in-addr.arpa	0
121.18.239.150	hebei.18.121.in-addr.arpa	0
121.18.239.151	hebei.18.121.in-addr.arpa	0
121.18.239.152	hebei.18.121.in-addr.arpa	0
121.18.239.153	hebei.18.121.in-addr.arpa	0
121.18.239.154	hebei.18.121.in-addr.arpa	0
121.18.239.155	hebei.18.121.in-addr.arpa	0
121.18.239.156	hebei.18.121.in-addr.arpa	0
121.18.239.157	hebei.18.121.in-addr.arpa	0
121.18.239.158	hebei.18.121.in-addr.arpa	0
121.18.239.159	hebei.18.121.in-addr.arpa	0
121.18.239.160	hebei.18.121.in-addr.arpa	0
121.18.239.161	hebei.18.121.in-addr.arpa	0
121.18.239.162	hebei.18.121.in-addr.arpa	0
121.18.239.163	hebei.18.121.in-addr.arpa	0
121.18.239.164	hebei.18.121.in-addr.arpa	0
121.18.239.165	hebei.18.121.in-addr.arpa	0
121.18.239.166	hebei.18.121.in-addr.arpa	0
121.18.239.167	hebei.18.121.in-addr.arpa	0
121.18.239.168	hebei.18.121.in-addr.arpa	0
121.18.239.169	hebei.18.121.in-addr.arpa	0
121.18.239.170	hebei.18.121.in-addr.arpa	0
121.18.239.171	hebei.18.121.in-addr.arpa	0
121.18.239.172	hebei.18.121.in-addr.arpa	0
121.18.239.173	hebei.18.121.in-addr.arpa	0
121.18.239.174	hebei.18.121.in-addr.arpa	0
121.18.239.175	hebei.18.121.in-addr.arpa	0
121.18.239.176	hebei.18.121.in-addr.arpa	0
121.18.239.177	hebei.18.121.in-addr.arpa	0
121.18.239.178	hebei.18.121.in-addr.arpa	0
121.18.239.179	hebei.18.121.in-addr.arpa	0
121.18.239.180	hebei.18.121.in-addr.arpa	0
121.18.239.181	hebei.18.121.in-addr.arpa	0
121.18.239.182	hebei.18.121.in-addr.arpa	0
121.18.239.183	hebei.18.121.in-addr.arpa	0
121.18.239.184	hebei.18.121.in-addr.arpa	0
121.18.239.185	hebei.18.121.in-addr.arpa	0
121.18.239.186	hebei.18.121.in-addr.arpa	0
121.18.239.187	hebei.18.121.in-addr.arpa	0
121.18.239.188	hebei.18.121.in-addr.arpa	0
121.18.239.189	hebei.18.121.in-addr.arpa	0
121.18.239.190	hebei.18.121.in-addr.arpa	0
121.18.239.191	hebei.18.121.in-addr.arpa	0
121.18.239.192	hebei.18.121.in-addr.arpa	0
121.18.239.193	hebei.18.121.in-addr.arpa	0
121.18.239.194	hebei.18.121.in-addr.arpa	0
121.18.239.195	hebei.18.121.in-addr.arpa	0
121.18.239.196	hebei.18.121.in-addr.arpa	0
121.18.239.197	hebei.18.121.in-addr.arpa	0
121.18.239.198	hebei.18.121.in-addr.arpa	0
121.18.239.199	hebei.18.121.in-addr.arpa	0
121.18.239.200	hebei.18.121.in-addr.arpa	0
121.18.239.201	hebei.18.121.in-addr.arpa	0
121.18.239.202	hebei.18.121.in-addr.arpa	0
121.18.239.203	hebei.18.121.in-addr.arpa	0
121.18.239.204	hebei.18.121.in-addr.arpa	0
121.18.239.205	hebei.18.121.in-addr.arpa	0
121.18.239.206	hebei.18.121.in-addr.arpa	0
121.18.239.207	hebei.18.121.in-addr.arpa	0
121.18.239.208	hebei.18.121.in-addr.arpa	0
121.18.239.209	hebei.18.121.in-addr.arpa	0
121.18.239.210	hebei.18.121.in-addr.arpa	0
121.18.239.211	hebei.18.121.in-addr.arpa	0
121.18.239.212	hebei.18.121.in-addr.arpa	0
121.18.239.213	hebei.18.121.in-addr.arpa	0
121.18.239.214	hebei.18.121.in-addr.arpa	0
121.18.239.215	hebei.18.121.in-addr.arpa	0
121.18.239.216	hebei.18.121.in-addr.arpa	0
121.18.239.217	hebei.18.121.in-addr.arpa	0
121.18.239.218	hebei.18.121.in-addr.arpa	0
121.18.239.219	hebei.18.121.in-addr.arpa	0
121.18.239.220	hebei.18.121.in-addr.arpa	0
121.18.239.221	hebei.18.121.in-addr.arpa	0
121.18.239.222	hebei.18.121.in-addr.arpa	0
121.18.239.223	hebei.18.121.in-addr.arpa	0
121.18.239.224	hebei.18.121.in-addr.arpa	0
121.18.239.225	hebei.18.121.in-addr.arpa	0
121.18.239.226	hebei.18.121.in-addr.arpa	0
121.18.239.227	hebei.18.121.in-addr.arpa	0
121.18.239.228	hebei.18.121.in-addr.arpa	0
121.18.239.229	hebei.18.121.in-addr.arpa	0
121.18.239.230	hebei.18.121.in-addr.arpa	0
121.18.239.231	hebei.18.121.in-addr.arpa	0
121.18.239.232	hebei.18.121.in-addr.arpa	0
121.18.239.233	hebei.18.121.in-addr.arpa	0
121.18.239.234	hebei.18.121.in-addr.arpa	0
121.18.239.235	hebei.18.121.in-addr.arpa	0
121.18.239.236	hebei.18.121.in-addr.arpa	0
121.18.239.237	hebei.18.121.in-addr.arpa	0
121.18.239.238	hebei.18.121.in-addr.arpa	0
121.18.239.239	hebei.18.121.in-addr.arpa	0
121.18.239.240	hebei.18.121.in-addr.arpa	0
121.18.239.241	hebei.18.121.in-addr.arpa	0
121.18.239.242	hebei.18.121.in-addr.arpa	0
121.18.239.243	hebei.18.121.in-addr.arpa	0
121.18.239.244	hebei.18.121.in-addr.arpa	0
121.18.239.245	hebei.18.121.in-addr.arpa	0
121.18.239.246	hebei.18.121.in-addr.arpa	0
121.18.239.247	hebei.18.121.in-addr.arpa	0
121.18.239.248	hebei.18.121.in-addr.arpa	0
121.18.239.249	hebei.18.121.in-addr.arpa	0
121.18.239.250	hebei.18.121.in-addr.arpa	0
121.18.239.251	hebei.18.121.in-addr.arpa	0
121.18.239.252	hebei.18.121.in-addr.arpa	0
121.18.239.253	hebei.18.121.in-addr.arpa	0
121.18.239.254	hebei.18.121.in-addr.arpa	0
121.18.239.255	hebei.18.121.in-addr.arpa	0

Traceroute

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

traceroute -a -n -q1 -f4 -m8 121.18.239.136

traceroute to 121.18.239.136 (121.18.239.136): 8 hops max, 52 byte packets

4 [AS3257] 213.200.116.225 24.293 ms

5 [AS4837] 219.158.33.201 263.053 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Madrid, ES

On February 16th 2026