210.21.0.0/17
AS17622 · China Unicom Guangzhou network
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| Country |
China
|
| Domain | chinaunicom.cn |
| ASN | AS17622 |
| Registry | APNIC |
| ID | UNICOM-GD |
WHOIS Details
inetnum: 210.21.0.0 - 210.21.127.255 netname: UNICOM-GD descr: China Unicom Guangdong province network descr: China Unicom country: CN admin-c: CH1302-AP tech-c: RP181-AP abuse-c: AC1718-AP status: ALLOCATED NON-PORTABLE remarks: service provider mnt-by: MAINT-CNCGROUP mnt-lower: MAINT-CNCGROUP-GD mnt-routes: MAINT-CNCGROUP-RR mnt-irt: IRT-CU-CN last-modified: 2023-10-21T03:37:28Z source: APNIC irt: IRT-CU-CN address: No.21,Financial Street address: Beijing,100033 address: P.R.China e-mail: [email protected] abuse-mailbox: [email protected] admin-c: CH1302-AP tech-c: CH1302-AP auth: # Filtered remarks: [email protected] was validated on 2025-10-17 mnt-by: MAINT-CNCGROUP last-modified: 2025-11-18T00:26:20Z source: APNIC role: ABUSE CUCN country: ZZ address: No.21,Financial Street address: Beijing,100033 address: P.R.China phone: +000000000 e-mail: [email protected] admin-c: CH1302-AP tech-c: CH1302-AP nic-hdl: AC1718-AP remarks: Generated from irt object IRT-CU-CN remarks: [email protected] was validated on 2025-10-17 abuse-mailbox: [email protected] mnt-by: APNIC-ABUSE last-modified: 2025-10-17T02:26:56Z source: APNIC person: ChinaUnicom Hostmaster nic-hdl: CH1302-AP e-mail: [email protected] address: No.21,Jin-Rong Street address: Beijing,100033 address: P.R.China phone: +86-10-66259764 fax-no: +86-10-66259764 country: CN mnt-by: MAINT-CNCGROUP last-modified: 2017-08-17T06:13:16Z source: APNIC person: runkeng pan nic-hdl: RP181-AP e-mail: [email protected] address: XinShiKong Plaza,No 666 Huangpu Rd. Guangzhou 510627,China phone: +86-20-22214174 fax-no: +86-20-22212266-4174 country: CN mnt-by: MAINT-CNCGROUP-GD last-modified: 2015-12-16T03:32:02Z source: APNIC route: 210.21.64.0/18 origin: AS17622 descr: China Unicom B811&A1218, China Unicom No.21, Jin-Rong Street mnt-by: MAINT-CNCGROUP-RR last-modified: 2023-06-08T06:10:15Z source: APNIC
Overlapping Ranges
BGP prefixes that are contained by 210.21.0.0/17
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 210.21.121.0/24 | AS17622 | guangzhou city | 256 |
| 210.21.17.0/24 | AS17622 | guangzhou city | 256 |
| 210.21.50.0/24 | AS17622 | guangzhou city | 256 |
| 210.21.51.0/24 | AS17622 | guangzhou city | 256 |
Nearby Ranges
BGP prefixes that overlap with 210.21.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 210.21.192.0/18 | AS17623 | shenzhen branch, china netcom corp | 16,384 |
| 210.21.17.0/24 | AS17622 | guangzhou city | 256 |
| 210.21.51.0/24 | AS17622 | guangzhou city | 256 |
| 210.21.237.0/24 | AS17623 | Zhaoshangtianyu | 256 |
| 210.21.50.0/24 | AS17622 | guangzhou city | 256 |
| 210.21.121.0/24 | AS17622 | guangzhou city | 256 |
Hosted domains
There are 102 domain names hosted across 75 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 210.21.91.215 | utopa-cloud.cn | 8 |
| 210.21.117.249 | cn119.cn | 6 |
| 210.21.117.220 | 18x.com.cn | 3 |
| 210.21.9.254 | hiooy.com | 3 |
| 210.21.9.251 | drsays.net | 3 |
| 210.21.4.71 | zjjl.cn | 3 |
| 210.21.31.89 | gacc.com.cn | 2 |
| 210.21.48.236 | gdbri.cn | 2 |
| 210.21.34.210 | gz-maxintl.com | 2 |
| 210.21.31.88 | gac-component.com | 2 |
| 210.21.113.143 | minohk.com | 1 |
| 210.21.79.150 | nfu.edu.cn | 1 |
| 210.21.13.229 | feimofund.com | 1 |
| 210.21.101.187 | wisplat.cn | 1 |
| 210.21.59.26 | mero.cn | 1 |
| 210.21.112.152 | devisite.com | 1 |
| 210.21.121.181 | gdart.site | 1 |
| 210.21.13.230 | gdpedu.org | 1 |
| 210.21.45.49 | hzmbo.com | 1 |
| 210.21.81.161 | dfn-auto.com | 1 |
Hosted domains API
Pingable IPs
3,652 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 210.21.74.1 |
3.80ms from Guangzhou,
CN
|
|
| 210.21.102.2 |
2.35ms from Guangzhou,
CN
|
|
| 210.21.81.225 |
2.40ms from Guangzhou,
CN
|
|
| 210.21.122.121 |
1.93ms from Guangzhou,
CN
|
|
| 210.21.105.195 |
1.99ms from Guangzhou,
CN
|
|
| 210.21.61.193 |
1.96ms from Guangzhou,
CN
|
|
| 210.21.86.74 |
2.02ms from Guangzhou,
CN
|
|
| 210.21.46.155 |
1.83ms from Guangzhou,
CN
|
|
| 210.21.25.98 |
2.71ms from Guangzhou,
CN
|
|
| 210.21.37.201 |
1.98ms from Guangzhou,
CN
|
|
| 210.21.28.145 |
1.93ms from Guangzhou,
CN
|
|
| 210.21.97.36 |
2.67ms from Guangzhou,
CN
|
|
| 210.21.64.161 |
3.05ms from Guangzhou,
CN
|
|
| 210.21.85.98 |
2.42ms from Guangzhou,
CN
|
|
| 210.21.126.123 |
2.44ms from Guangzhou,
CN
|
|
| 210.21.79.90 |
1.52ms from Guangzhou,
CN
|
|
| 210.21.40.161 |
1.53ms from Guangzhou,
CN
|
|
| 210.21.10.210 |
2.02ms from Guangzhou,
CN
|
|
| 210.21.104.34 |
2.33ms from Guangzhou,
CN
|
|
| 210.21.43.17 |
2.16ms from Guangzhou,
CN
|
|
| 210.21.4.97 |
2.30ms from Guangzhou,
CN
|
|
| 210.21.98.93 |
2.49ms from Guangzhou,
CN
|
|
| 210.21.41.35 |
1.93ms from Guangzhou,
CN
|
|
| 210.21.21.1 |
2.71ms from Guangzhou,
CN
|
|
| 210.21.51.229 |
2.38ms from Guangzhou,
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 |
|---|---|---|
| 217.123.97.1 |
1.35ms from Amsterdam,
NL
|
|
| 92.109.56.1 |
2.97ms from Amsterdam,
NL
|
|
| 73.134.90.1 |
4.39ms from Ashburn,
US
|
|
| 174.54.184.1 |
17.88ms from Ashburn,
US
|
|
| 58.136.118.1 |
10.86ms from Bangkok,
TH
|
|
| 101.26.230.1 |
10.69ms from Beijing,
CN
|
|
| 52.27.66.33 |
0.18ms from Boardman,
US
|
|
| 220.244.13.1 |
1.57ms from Brisbane,
AU
|
|
| 213.249.102.49 |
0.65ms from Brussels,
BE
|
|
| 81.24.16.177 |
0.47ms from Bucharest,
RO
|
|
| 181.167.4.1 |
0.80ms from Buenos Aires,
AR
|
|
| 190.16.86.1 |
1.34ms from Buenos Aires,
AR
|
|
| 104.157.86.1 |
1.73ms from Calgary,
CA
|
|
| 152.110.140.1 |
1.07ms from Cape Town,
ZA
|
|
| 43.245.136.209 |
0.65ms from Chennai,
IN
|
|
| 121.72.234.1 |
11.89ms from Christchurch,
NZ
|
|
| 81.25.151.81 |
8.03ms from Copenhagen,
DK
|
|
| 85.83.151.129 |
6.01ms from Copenhagen,
DK
|
|
| 139.84.170.65 |
0.13ms from Delhi,
IN
|
|
| 72.249.248.129 |
5.01ms from Denver,
US
|
|
| 52.48.80.193 |
0.18ms from Dublin,
IE
|
|
| 79.97.96.1 |
3.14ms from Dublin,
IE
|
|
| 88.74.222.129 |
6.46ms from Duesseldorf,
DE
|
|
| 81.107.214.1 |
3.65ms from Erith,
GB
|
|
| 1.95.228.129 |
1.16ms from Guiyang,
CN
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
What are IP address ranges?
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.
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