37.21.128.0/18

AS12389  ·  PJSC Rostelecom

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Summary

Country Russia
Domain rostelecom.ru
ASN AS12389
Parent Range 37.20.0.0/14
Registry RIPE
ID WEBSTREAM

WHOIS Details

inetnum:        37.21.128.0 - 37.21.191.255
netname:        WEBSTREAM
descr:          JSC Rostelecom regional branch Siberia
remarks:        Tomsk broadband service
country:        RU
remarks:        
remarks:        NCC
remarks:        INFRA AW
remarks:        
admin-c:        DIN-RIPE
admin-c:        NSOE11-RIPE
tech-c:         DIN-RIPE
tech-c:         NSOE22-RIPE
mnt-by:         ROSTELECOM-MNT
status:         ASSIGNED PA
remarks:        
remarks:        Direct reference for the general info on spam
remarks:        In unsoluble cases for the general info on spam,
remarks:        abusing & hacking complaints email
remarks:        [email protected]
remarks:        
notify:         [email protected]
created:        2012-01-12T01:59:55Z
last-modified:  2025-06-27T09:40:31Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        RTNC-RIPE
abuse-org:      ORG-JR8-RIPE

role:           DIN Tomsktelecom NET Contact Role
address:        Digital Information Network
address:        Tomsktelecom
address:        40, Chernykh str.,
address:        634063, Tomsk, Russia
phone:          +7 3822 662510
phone:          +7 3822 662506
phone:          +7 3822 559876
fax-no:         +7 3822 662502
e-mail:         [email protected]
remarks:        trouble: URI2-RIPE
remarks:        trouble: VAD-RIPE
admin-c:        SLY-RIPE
admin-c:        VAD-RIPE
tech-c:         SLY-RIPE
tech-c:         URI2-RIPE
tech-c:         VAD-RIPE
nic-hdl:        DIN-RIPE
notify:         [email protected]
mnt-by:         DIN-RIPE-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2022-07-19T12:19:00Z
source:         RIPE

role:           NSOELSVZ admin-c role
address:        JSC Sibirtelecom
address:        18, Ordjenikidze str.,
address:        630099, Novosibirsk, Russia
phone:          +7 383 2 270669
fax-no:         +7 383 2 270017
e-mail:         [email protected]
admin-c:        YOL1-RIPE
admin-c:        VIK15-RIPE
tech-c:         YOL1-RIPE
tech-c:         VIK15-RIPE
nic-hdl:        NSOE11-RIPE
notify:         [email protected]
mnt-by:         NSOELSV-NCC
created:        2005-03-29T04:58:27Z
last-modified:  2008-09-08T05:37:10Z
source:         RIPE

role:           NSOELSVZ tech-c role
address:        JSC Sibirtelecom
address:        18, Ordjenikidze str.,
address:        630099, Novosibirsk, Russia
phone:          +7 383 2 270669
fax-no:         +7 383 2 270017
e-mail:         [email protected]
admin-c:        YOL1-RIPE
admin-c:        VIK15-RIPE
tech-c:         YOL1-RIPE
tech-c:         VIK15-RIPE
nic-hdl:        NSOE22-RIPE
notify:         [email protected]
mnt-by:         NSOELSV-NCC
created:        2005-03-29T04:55:41Z
last-modified:  2008-09-08T05:37:11Z
source:         RIPE

route:          37.21.128.0/18
descr:          JSC Rostelecom regional branch Siberia
remarks:        Tomsk branch
origin:         AS12389
mnt-by:         ROSTELECOM-MNT
notify:         [email protected]
created:        2019-04-30T02:19:23Z
last-modified:  2025-06-27T05:44:36Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 37.21.128.0/18

Range ASN Company Num of IPs
37.20.0.0/14 AS12389 PJSC Rostelecom 262,144

Nearby Ranges

BGP prefixes that overlap with 37.21.0.0/16

Range ASN Company Num of IPs
37.20.0.0/14 AS12389 PJSC Rostelecom 262,144
37.21.192.0/18 AS12389 JSC Rostelecom regional branch Siberia 16,384

Hosted domains

There are no domains currently hosted on this ASN.

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

14,709 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
37.21.128.1 AS12389 PJSC Rostelecom 4.92ms from Novosibirsk, RU
37.21.171.212 AS12389 PJSC Rostelecom 5.33ms from Novosibirsk, RU
37.21.183.222 AS12389 PJSC Rostelecom 5.70ms from Novosibirsk, RU
37.21.178.27 AS12389 PJSC Rostelecom 5.19ms from Novosibirsk, RU
37.21.172.166 AS12389 PJSC Rostelecom 5.69ms from Novosibirsk, RU
37.21.147.80 AS12389 PJSC Rostelecom 5.36ms from Novosibirsk, RU
37.21.158.158 AS12389 PJSC Rostelecom 5.75ms from Novosibirsk, RU
37.21.146.193 AS12389 PJSC Rostelecom 5.50ms from Novosibirsk, RU
37.21.133.135 AS12389 PJSC Rostelecom 5.71ms from Novosibirsk, RU
37.21.144.181 AS12389 PJSC Rostelecom 5.68ms from Novosibirsk, RU
37.21.181.31 AS12389 PJSC Rostelecom 5.35ms from Novosibirsk, RU
37.21.134.252 AS12389 PJSC Rostelecom 5.26ms from Novosibirsk, RU
37.21.157.205 AS12389 PJSC Rostelecom 5.53ms from Novosibirsk, RU
37.21.139.6 AS12389 PJSC Rostelecom 5.25ms from Novosibirsk, RU
37.21.173.26 AS12389 PJSC Rostelecom 5.39ms from Novosibirsk, RU
37.21.179.183 AS12389 PJSC Rostelecom 5.18ms from Novosibirsk, RU
37.21.156.11 AS12389 PJSC Rostelecom 5.14ms from Novosibirsk, RU
37.21.150.213 AS12389 PJSC Rostelecom 5.16ms from Novosibirsk, RU
37.21.142.191 AS12389 PJSC Rostelecom 5.57ms from Novosibirsk, RU
37.21.175.6 AS12389 PJSC Rostelecom 5.49ms from Novosibirsk, RU
37.21.137.156 AS12389 PJSC Rostelecom 5.37ms from Novosibirsk, RU
37.21.151.14 AS12389 PJSC Rostelecom 5.25ms from Novosibirsk, RU
37.21.176.38 AS12389 PJSC Rostelecom 5.33ms from Novosibirsk, RU
37.21.153.190 AS12389 PJSC Rostelecom 5.19ms from Novosibirsk, RU
37.21.165.196 AS12389 PJSC Rostelecom 5.71ms from Novosibirsk, RU

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
197.156.120.146 AS24757 Ethio Telecom 8.44ms from Addis Ababa, ET
68.220.29.2 AS8075 Microsoft Corporation 0.27ms from Boydton, US
102.97.168.2 AS36925 MEDITELECOM 6.69ms from Casablanca, MA
75.196.116.82 AS6167 Verizon Business 8.56ms from Chicago, US
146.70.19.114 AS9009 M247 Europe SRL 0.08ms from Dubai, AE
177.225.168.194 AS13999 Mega Cable, S.A. de C.V. 3.77ms from Guadalajara, MX
132.185.114.178 AS2818 BBC 0.59ms from London, GB
150.101.212.226 AS4739 Internode Pty Ltd 1.06ms from Melbourne, AU
12.205.252.50 AS7018 AT&T Enterprises, LLC 5.59ms from Miami, US
94.164.155.146 AS1267 WIND TRE S.P.A. 12.60ms from Milan, IT
77.37.178.2 AS42610 PJSC Rostelecom 0.71ms from Moscow, RU
177.204.76.2 AS18881 TELEFÔNICA BRASIL S.A 2.46ms from Novo Hamburgo, BR
113.36.161.114 AS17506 ARTERIA Networks Corporation 3.32ms from Osaka, JP
211.56.13.114 AS4766 Korea Telecom 1.60ms from Seoul, KR
219.233.22.210 AS9812 Oriental Cable Network Co., Ltd. 1.45ms from Shanghai, CN
18.143.56.162 AS16509 Amazon.com, Inc. 0.11ms from Singapore, SG
137.216.240.226 AS11607 South Dakota State University 8.85ms from Sioux Falls, US
101.191.38.114 AS1221 Telstra Limited 3.74ms from Sydney, AU
106.69.113.226 AS7545 TPG Telecom Limited 2.63ms from Sydney, AU
210.198.174.2 AS2516 KDDI CORPORATION 0.95ms from Tokyo, JP
65.125.19.130 AS209 CenturyLink Communications, LLC 0.85ms from Ashburn, US
20.81.51.242 AS8075 Microsoft Corporation 0.39ms from Ashburn, US
168.8.76.2 AS3480 Board of Regents of the University System of Georgia 4.36ms from Atlanta, US
162.202.34.66 AS7018 AT&T Enterprises, LLC 3.14ms from Atlanta, US
20.60.154.130 AS8075 Microsoft Corporation 0.52ms from Boydton, US

Traceroute

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

$
traceroute -a -n -q1 -f4 37.21.190.145
traceroute to 37.21.190.145 (37.21.190.145): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in Novosibirsk, RU
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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