1. All IP Ranges
  2. 103.0.0.0/8
  3. 103.119.0.0/16
  4. AS215305  | 103.119.18.0/23

103.119.18.0/23

AS215305  ·  Mastersoft S.R.L.

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Summary

Country Czechia
Domain retzor.com
ASN AS215305
Registry APNIC
ID RETZOR

WHOIS Details

inetnum:        103.119.18.0 - 103.119.19.255
netname:        Retzor
descr:          Retzor, Inc.
country:        CZ
admin-c:        AB1807-AP
tech-c:         AB1807-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-CNNIC-AP
mnt-irt:        IRT-CNNIC-CN
abuse-c:        AB1807-AP
geofeed:        https://retzor.com/uploads/nets.csv
last-modified:  2026-04-15T01:03:45Z
source:         APNIC

irt:            IRT-CNNIC-CN
address:        Beijing, China
e-mail:         ipas@cnnic.cn
abuse-mailbox:  ipas@cnnic.cn
admin-c:        IP50-AP
tech-c:         IP50-AP
auth:           # Filtered
remarks:        Please note that CNNIC is not an ISP and is not
remarks:        empowered to investigate complaints of network abuse.
remarks:        Please contact the tech-c or admin-c of the network.
remarks:        ipas@cnnic.cn is invalid
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-11-17T23:08:37Z
source:         APNIC

person:         Alex Beloff
address:        Moscow, Ugreshskaya str, 2c147
country:        RU
phone:          +79037230252
e-mail:         info@datacheap.ru
nic-hdl:        AB1807-AP
mnt-by:         MAINT-RAINBOWIDC-JP
abuse-mailbox:  info@datacheap.ru
last-modified:  2026-04-14T22:53:57Z
source:         APNIC

route:          103.119.18.0/23
descr:          abuse please contact info@datacheap.ru
origin:         AS215305
mnt-by:         MAINT-CNNIC-AP
last-modified:  2026-04-14T23:46:04Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 103.119.0.0/16

Range ASN Company Num of IPs
103.119.36.0/22 AS4787 PT. Cyberindo Aditama 1,024
103.119.148.0/22 AS137991 Lifeway Singapore Pte. Ltd. 1,024
103.119.64.0/22 AS63859 PT Surya Bifa Mandiri 1,024
103.119.0.0/22 AS55933 Sakura Network Limited 1,024
103.119.20.0/22 AS137976 Siam Trading 1,024
103.119.68.0/22 AS137974 Gazipur Agricultural University 1,024
103.119.128.0/22 AS137990 SUNIWAY GROUP LIMITED 1,024
103.119.60.0/22 AS63859 PT Tiara Gading Jaya 1,024
103.119.88.0/22 AS63782 Omaezaki Cable Television Co.Ltd 1,024
103.119.84.0/22 AS7643 Digital Era Software Company Limited 1,024
103.119.4.0/22 AS4787 PT. Cyberindo Aditama 1,024
103.119.100.0/22 AS134732 Dot Internet 1,024
103.119.8.0/22 AS4787 CV Jati Mulya 1,024
103.119.152.0/22 AS137989 BigHub Co.,Ltd 1,024
103.119.96.0/22 AS139628 Mega Truenet Communication Co., Ltd. 1,024
103.119.178.0/23 AS141549 KERALA FIBRE OPTIC NETWORK LIMITED 512
103.119.80.0/23 AS139871 TONLE TECHNOLOGIES AND COMMUNICATIONS CO., LTD. 512
103.119.186.0/23 AS149548 D NET BROADBAND 512
103.119.140.0/23 AS136119 PT Bali Towerindo Sentra, Tbk 512
103.119.72.0/23 AS8360 Allianz Technology SE 512
103.119.174.0/23 AS151045 Yae Telecom Limited 512
103.119.242.0/23 AS132215 POWERGRID TELESERVICES LIMITED 512
103.119.170.0/23 AS140641 SERVETEL COMMUNICATIONS PRIVATE LIMITED 512
103.119.236.0/23 AS151586 PT Bintang Semesta Telematika 512
103.119.178.0/23 AS133037 KERALA FIBRE OPTIC NETWORK LIMITED 512
103.119.104.0/23 AS138029 Topnets Group LTD Company,Unit 616, 6/F., Kam Teem Industrial Bldg.,135 Connaught Road West, Sheung Wan, H.K. 512
103.119.254.0/23 AS135808 Fiberzone Communications Pvt Ltd 512
103.119.220.0/23 AS137683 Nimbus Adcom Pvt Ltd 512
103.119.208.0/24 AS136902 ALEGRA COMM PVT LTD 256
103.119.209.0/24 AS136902 ALEGRA COMM PVT LTD 256
103.119.93.0/24 AS135643 Automated Technologies Inc 256
103.119.247.0/24 AS136787 HostRoyale Technologies Pvt Ltd 256
103.119.244.0/24 AS136787 HostRoyale Technologies Pvt Ltd 256
103.119.45.0/24 AS135330 ADCDATA.COM 256
103.119.103.0/24 AS134732 Dot Internet 256
103.119.109.0/24 AS136557 DreamITsolutions Australia 256
103.119.110.0/24 AS136557 DreamITsolutions Australia 256
103.119.47.0/24 AS135330 ADCDATA.COM 256
103.119.94.0/24 AS137987 SK Link 256
103.119.75.0/24 AS137981 Bank of Maldives Plc 256
103.119.144.0/24 AS136119 PT Bali Towerindo Sentra, Tbk 256
103.119.46.0/24 AS135330 ADCDATA.COM 256
103.119.100.0/24 AS134732 Dot Internet 256
103.119.32.0/24 AS137980 Unibit Pty Ltd 256
103.119.145.0/24 AS136119 PT Bali Towerindo Sentra, Tbk 256
103.119.24.0/24 AS137975 Stark Telecom 256
103.119.92.0/24 AS137982 BOW LLC 256
103.119.25.0/24 AS137975 Stark Telecom 256
103.119.140.0/24 AS136119 PT Bali Towerindo Sentra, Tbk 256

Hosted domains

There are 71 domain names hosted across 33 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
103.119.18.183 csgosf.com 6
103.119.18.241 jiuta.art 2
103.119.18.192 gmancy.com 1
103.119.18.181 xiaoyv.xyz 1
103.119.18.216 my39.cn 1
103.119.18.44 689527.xyz 1
103.119.18.57 dongxie.vip 1
103.119.18.220 likeyou.vip 1
103.119.18.207 steellinedevices.com 1
103.119.18.89 meus.cc 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
Read more

Pingable IPs

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

IP Address ASN Details
103.119.18.10 AS215305 Mastersoft S.R.L. 0.25ms from Veseli nad Moravou, CZ
103.119.19.3 AS215305 Mastersoft S.R.L. 0.37ms from Veseli nad Moravou, CZ

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
172.77.36.23 AS5650 Frontier Communications of America, Inc. 11.75ms from Ashburn, US
3.249.220.231 AS16509 Amazon.com, Inc. 0.55ms from Dublin, IE
86.189.233.135 AS2856 British Telecommunications PLC 16.22ms from London, GB
79.44.89.231 AS3269 Telecom Italia S.p.A. 8.85ms from Milan, IT
91.8.139.135 AS3320 Deutsche Telekom AG 3.83ms from Munich, DE
54.84.203.7 AS14618 Amazon.com, Inc. 0.44ms from Reston, US
93.71.205.39 AS30722 Fastweb SpA 10.16ms from Rome, IT
2.23.253.135 AS16625 Akamai Technologies, Inc. 0.10ms from Santiago, CL
125.179.131.183 AS17858 LG POWERCOMM 3.23ms from Seoul, KR
167.224.201.71 AS395662 OzarksGo, LLC 8.96ms from Dallas, US
180.64.130.199 AS9318 SK Broadband Co Ltd 3.59ms from Incheon, KR
82.43.105.23 AS5089 Virgin Media Limited 5.76ms from London, GB
31.169.106.247 AS197845 Cegeka S.P.A. 1.28ms from Rome, IT
24.55.113.71 AS14638 Liberty Communications of Puerto Rico LLC 9.27ms from San Juan, PR
187.106.158.7 AS28573 Claro NXT Telecomunicacoes Ltda 8.96ms from Sao Paulo, BR
43.203.88.39 AS16509 Amazon.com, Inc. 0.58ms from Seoul, KR
159.143.69.7 AS8011 MongoDB, Inc. 0.12ms from Singapore, SG
43.109.89.167 AS24429 Zhejiang Taobao Network Co.,Ltd 0.07ms from Sydney, AU
5.13.33.167 AS8708 DIGI ROMANIA S.A. 0.67ms from Bacau, RO
23.202.87.151 AS16625 Akamai Technologies, Inc. 7.01ms from Chicago, US
1.207.169.231 AS4134 CHINANET BACKBONE 4.08ms from Guiyang, CN
72.22.216.23 AS11708 City of North Kansas City, MO 0.29ms from Kansas City, US
192.92.124.135 AS16573 Santa Monica Community College District 1.10ms from Los Angeles, US
35.136.239.23 AS33363 Charter Communications, Inc 13.53ms from Orlando, US
93.58.251.231 AS12874 Fastweb SpA 8.70ms from Rome, IT

Traceroute

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

$
traceroute -a -n -q1 103.119.19.3
traceroute to 103.119.19.3 (103.119.19.3): 64 hops max, 52 byte packets
1 [AS51248] 193.161.86.1 0.688 ms
2 [AS51248] 176.74.217.5 15.632 ms
Measurement taken from IPinfo ProbeNet in Veseli nad Moravou, CZ
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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