221.221.128.0/18

AS4808  ·  China Unicom Beijing Province Network

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Summary

Country China
Domain chinaunicom.cn
ASN AS4808
Parent Range 221.216.0.0/13
Registry APNIC
ID UNICOM-BJ

WHOIS Details

inetnum:        221.216.0.0 - 221.223.255.255
netname:        UNICOM-BJ
descr:          China Unicom Beijing province network
descr:          China Unicom
country:        CN
admin-c:        CH1302-AP
tech-c:         SY21-AP
abuse-c:        AC1718-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CNCGROUP-BJ
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2021-11-09T07:38:09Z
source:         APNIC

irt:            IRT-CU-CN
address:        No.21,Financial Street
address:        Beijing,100033
address:        P.R.China
e-mail:         zhaoyz3@chinaunicom.cn
abuse-mailbox:  zhaoyz3@chinaunicom.cn
admin-c:        CH1302-AP
tech-c:         CH1302-AP
auth:           # Filtered
remarks:        zhaoyz3@chinaunicom.cn was validated on 2025-10-17
mnt-by:         MAINT-CNCGROUP
last-modified:  2025-10-17T02:26:26Z
source:         APNIC

role:           ABUSE CUCN
country:        ZZ
address:        No.21,Financial Street
address:        Beijing,100033
address:        P.R.China
phone:          +000000000
e-mail:         zhaoyz3@chinaunicom.cn
admin-c:        CH1302-AP
tech-c:         CH1302-AP
nic-hdl:        AC1718-AP
remarks:        Generated from irt object IRT-CU-CN
remarks:        zhaoyz3@chinaunicom.cn was validated on 2025-10-17
abuse-mailbox:  zhaoyz3@chinaunicom.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-10-17T02:26:56Z
source:         APNIC

person:         ChinaUnicom Hostmaster
nic-hdl:        CH1302-AP
e-mail:         hqs-ipabuse@chinaunicom.cn
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:         sun ying
address:        fu xing men nei da jie 97, Xicheng District
address:        Beijing 100800
country:        CN
phone:          +86-10-66030657
fax-no:         +86-10-66078815
e-mail:         hostmast@publicf.bta.net.cn
nic-hdl:        SY21-AP
mnt-by:         MAINT-CNCGROUP-BJ
last-modified:  2009-06-30T08:42:48Z
source:         APNIC

route:          221.216.0.0/13
descr:          China Unicom Beijing Province Network
country:        CN
origin:         AS4808
mnt-by:         MAINT-CNCGROUP-RR
last-modified:  2016-05-20T01:24:03Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 221.221.128.0/18

Range ASN Company Num of IPs
221.216.0.0/13 AS4808 China Unicom Beijing province network 524,288

Nearby Ranges

BGP prefixes that overlap with 221.221.0.0/16

Range ASN Company Num of IPs
221.216.0.0/13 AS4808 China Unicom Beijing province network 524,288

Hosted domains

There are 16 domain names hosted across 15 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
221.221.138.218 chinanums.cn 1
221.221.155.199 8910.xyz 1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity

Pingable IPs

6,119 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
221.221.136.169 AS4808 China Unicom Beijing Province Network 3.71ms from Beijing, CN
221.221.139.145 AS4808 China Unicom Beijing Province Network 3.58ms from Beijing, CN
221.221.128.1 AS4808 China Unicom Beijing Province Network 3.96ms from Beijing, CN
221.221.138.9 AS4808 China Unicom Beijing Province Network 4.19ms from Beijing, CN
221.221.132.1 AS4808 China Unicom Beijing Province Network 3.70ms from Beijing, CN
221.221.137.6 AS4808 China Unicom Beijing Province Network 3.97ms from Beijing, CN
221.221.168.1 AS4808 China Unicom Beijing Province Network 3.75ms from Beijing, CN
221.221.161.100 AS4808 China Unicom Beijing Province Network 3.50ms from Beijing, CN
221.221.153.190 AS4808 China Unicom Beijing Province Network 3.68ms from Beijing, CN
221.221.154.157 AS4808 China Unicom Beijing Province Network 3.68ms from Beijing, CN
221.221.167.120 AS4808 China Unicom Beijing Province Network 3.56ms from Beijing, CN
221.221.163.157 AS4808 China Unicom Beijing Province Network 3.44ms from Beijing, CN
221.221.149.131 AS4808 China Unicom Beijing Province Network 3.72ms from Beijing, CN
221.221.147.185 AS4808 China Unicom Beijing Province Network 3.45ms from Beijing, CN
221.221.151.169 AS4808 China Unicom Beijing Province Network 3.42ms from Beijing, CN
221.221.159.240 AS4808 China Unicom Beijing Province Network 3.54ms from Beijing, CN
221.221.148.28 AS4808 China Unicom Beijing Province Network 3.37ms from Beijing, CN
221.221.165.198 AS4808 China Unicom Beijing Province Network 3.51ms from Beijing, CN
221.221.146.8 AS4808 China Unicom Beijing Province Network 3.46ms from Beijing, CN
221.221.155.132 AS4808 China Unicom Beijing Province Network 3.68ms from Beijing, CN
221.221.158.27 AS4808 China Unicom Beijing Province Network 3.72ms from Beijing, CN
221.221.157.9 AS4808 China Unicom Beijing Province Network 3.37ms from Beijing, CN
221.221.164.43 AS4808 China Unicom Beijing Province Network 3.41ms from Beijing, CN
221.221.145.119 AS4808 China Unicom Beijing Province Network 3.54ms from Beijing, CN
221.221.160.103 AS4808 China Unicom Beijing Province Network 3.32ms from Beijing, 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
108.72.51.2 AS7018 AT&T Enterprises, LLC 19.68ms from Atlanta, US
61.50.132.210 AS4808 China Unicom Beijing Province Network 3.75ms from Beijing, CN
204.111.17.66 AS4922 Shenandoah Cable Television LLC 2.48ms from Berkeley Springs, US
81.169.237.226 AS6724 Strato GmbH 0.58ms from Berlin, DE
111.22.149.66 AS56047 China Mobile communications corporation 2.86ms from Changsha, CN
103.119.74.2 AS134513 GIESECKE AND DEVRIENT INDIA PRIVATE LIMITED 1.74ms from Chennai, IN
20.168.182.18 AS8075 Microsoft Corporation 3.47ms from Denver, US
14.239.143.242 AS45899 VNPT Corp 2.94ms from Hanoi, VN
212.64.222.50 AS42216 Yasar Sen trading as Alapli Teknoloji 0.17ms from Istanbul, TR
77.92.140.194 AS42910 PremierDC Veri Merkezi Anonim Sirketi 0.65ms from Istanbul, TR
18.67.235.18 AS16509 Amazon.com, Inc. 0.11ms from Kolkata, IN
207.246.99.66 AS20473 The Constant Company, LLC 0.15ms from Los Angeles, US
81.33.53.226 AS3352 TELEFONICA DE ESPANA S.A.U. 1.68ms from Madrid, ES
72.35.69.2 AS13649 Flexential Colorado Corp. 1.38ms from Miami, US
181.39.35.18 AS27947 Telconet S.A 0.93ms from Quito, EC
89.97.163.34 AS12874 Fastweb SpA 0.81ms from Rome, IT
206.174.161.2 AS32890 Beehive Telephone Company, Inc. 2.86ms from Salt Lake City, US
95.83.62.98 AS12389 PJSC Rostelecom 8.80ms from Samara, RU
208.78.227.130 AS63410 PrivateSystems Networks 0.53ms from Seattle, US
66.24.46.82 AS11351 Charter Communications Inc 19.01ms from Secaucus, US
45.119.146.98 AS135354 NAVER BUSINESS PLATFORM ASIA PACIFIC PTE. LTD. 1.19ms from Seoul, KR
211.118.254.130 AS3786 LG DACOM Corporation 2.01ms from Seoul, KR
118.217.31.242 AS9318 SK Broadband Co Ltd 9.47ms from Seoul, KR
103.26.171.18 AS132111 Bigband Sdn Bhd 0.50ms from Sepang, MY
54.179.1.114 AS16509 Amazon.com, Inc. 0.12ms from Singapore, SG

Traceroute

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

$
traceroute -a -n -q1 -m14 221.221.181.139
traceroute to 221.221.181.139 (221.221.181.139): 14 hops max, 52 byte packets
3 *
4 *
5 [AS3356] 4.26.2.162 212.455 ms
6 *
7 *
8 *
9 *
10 [AS4808] 61.149.202.17 220.282 ms
11 [AS4808] 114.245.246.138 220.267 ms
12 *
13 *
14 *
Measurement taken from IPinfo ProbeNet in Montreal, CA
On

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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