1. All IP Ranges
  2. 178.0.0.0/8
  3. 178.21.0.0/16
  4. AS197480  | 178.21.136.0/21

178.21.136.0/21

AS197480  ·  SerczerNET Malgorzata Nienaltowska

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Summary

Country Poland
Domain serczer.pl
ASN AS197480
Registry RIPE
ID PL-SERCZERNET-20100317

WHOIS Details

inetnum:        178.21.136.0 - 178.21.143.255
netname:        PL-SERCZERNET-20100317
country:        PL
org:            ORG-SMN3-RIPE
admin-c:        SNET77-RIPE
tech-c:         SNET77-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SERCZERNET
mnt-routes:     SERCZERNET
notify:         mariusz.nienaltowski@serczer.pl
mnt-domains:    SERCZERNET
created:        2010-03-17T11:01:42Z
last-modified:  2017-01-11T15:07:22Z
source:         RIPE
abuse-email:    abuse@serczer.pl
abuse-c:        AS29980-RIPE
abuse-org:      ORG-SMN3-RIPE

organisation:   ORG-SMN3-RIPE
org-name:       SerczerNET Malgorzata Nienaltowska
country:        PL
org-type:       LIR
address:        Ogrodowa 3/36
address:        16-020
address:        Czarna Bialostocka
address:        POLAND
phone:          +48856743088
fax-no:         +48856743087
e-mail:         mariusz.nienaltowski@serczer.pl
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        SERCZERNET
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SERCZERNET
abuse-c:        AS29980-RIPE
created:        2010-01-28T14:03:39Z
last-modified:  2020-12-16T12:34:33Z
source:         RIPE

person:         Mariusz Nienaltowski
address:        Poland, ul. Ogrodowa 3/36, 16-020 Czarna Bialostocka
phone:          +48856743592
nic-hdl:        SNET77-RIPE
created:        2010-03-11T15:42:05Z
last-modified:  2020-06-04T11:51:44Z
source:         RIPE
mnt-by:         SERCZERNET

route:          178.21.136.0/21
descr:          SERCZERNET-IP
origin:         AS197480
mnt-by:         SERCZERNET
created:        2011-10-06T14:25:04Z
last-modified:  2011-10-06T14:25:04Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 178.21.0.0/16

Range ASN Company Num of IPs
178.21.24.0/21 AS20483 EUROCOM Ltd. 2,048
178.21.0.0/21 AS196968 Ilm-Provider UG (haftungsbeschraenkt) 2,048
178.21.248.0/21 AS196997 Uni-tel A/S 2,048
178.21.240.0/21 AS50794 Levira AS 2,048
178.21.64.0/21 AS50713 LLC Forward Telecom LTD 2,048
178.21.16.0/21 AS50673 Serverius Holding B.V. 2,048
178.21.168.0/21 AS199081 Lancom Ltd. 2,048
178.21.88.0/21 AS50490 Sinal A/S 2,048
178.21.120.0/21 AS49909 Direct One SA 2,048
178.21.192.0/21 AS49283 Setera Oy 2,048
178.21.232.0/21 AS44671 Skyline Networks & Consultancy Ltd 2,048
178.21.200.0/21 AS44473 S.T. S.r.l. 2,048
178.21.224.0/21 AS41549 Elektrizitaets- und Wasserwerk der Stadt Buchs SG 2,048
178.21.72.0/21 AS39806 Admax AB 2,048
178.21.184.0/21 AS202895 TFnet s.r.o. 2,048
178.21.128.0/21 AS39783 Webhuset AS 2,048
178.21.88.0/21 AS39642 Sinal A/S 2,048
178.21.56.0/21 AS35454 Asitur Asistencia, S.A. 2,048
178.21.176.0/21 AS34659 KEYYO SA 2,048
178.21.152.0/21 AS31621 Allegro sp. z o.o. 2,048
178.21.112.0/21 AS29028 DirectVPS B.V. 2,048
178.21.80.0/21 AS20574 Knowit Connectivity AB 2,048
178.21.40.0/23 AS52070 Parsian Bank 512
178.21.14.0/23 AS49352 Reg.Ru 512
178.21.145.0/24 AS203560 regfish GmbH Anycast DNS Network 256
178.21.111.0/24 AS206826 ABERTIS AUTOPISTAS ESPANA, S.A 256
178.21.164.0/24 AS21419 PISHTAZE E JADID INFORMATION COMPANY (Ltd.) 256
178.21.144.0/24 AS203560 regfish GmbH Anycast DNS Network 256
178.21.39.0/24 AS203258 UCNS Limited 256
178.21.38.0/24 AS203258 UCNS Limited 256
178.21.34.0/24 AS203258 UCNS Limited 256
178.21.56.0/24 AS35454 Asitur Asistencia, S.A. 256
178.21.57.0/24 AS35454 Asitur Asistencia, S.A. 256
178.21.58.0/24 AS35454 Asitur Asistencia, S.A. 256
178.21.59.0/24 AS35454 Asitur Asistencia, S.A. 256
178.21.60.0/24 AS35454 Asitur Asistencia, S.A. 256
178.21.61.0/24 AS35454 Asitur Asistencia, S.A. 256
178.21.62.0/24 AS35454 Asitur Asistencia, S.A. 256
178.21.63.0/24 AS35454 Asitur Asistencia, S.A. 256
178.21.33.0/24 AS203258 UCNS Limited 256
178.21.32.0/24 AS203258 UCNS Limited 256
178.21.175.0/24 AS199081 VPS USERS 256
178.21.174.0/24 AS199081 Lancom Ltd. 256
178.21.209.0/24 AS43635 VeriFone Systems France SAS 256
178.21.173.0/24 AS199081 Lancom Ltd. 256
178.21.172.0/24 AS199081 Lancom Ltd. 256
178.21.171.0/24 AS199081 LANCOM LTD. 256
178.21.148.0/24 AS16509 regfish GmbH 256
178.21.9.0/24 AS49352 Reg.Ru Hosting 256

Hosted domains

There are 4 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
178.21.137.138 serczernet.pl 2
178.21.137.132 qgalab.pl 1
178.21.136.87 promostal.pro 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

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

IP Address ASN Details
178.21.139.1 AS197480 SerczerNET Malgorzata Nienaltowska 3.09ms from Warsaw, PL
178.21.137.129 AS197480 SerczerNET Malgorzata Nienaltowska 3.10ms from Warsaw, PL
178.21.136.161 AS197480 SerczerNET Malgorzata Nienaltowska 3.15ms from Warsaw, PL
178.21.138.1 AS197480 SerczerNET Malgorzata Nienaltowska 3.10ms from Warsaw, PL

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
98.84.208.101 AS14618 Amazon.com, Inc. 0.54ms from Ashburn, US
64.68.145.149 AS26967 Sangoma US Inc. 0.56ms from Atlanta, US
59.100.180.117 AS2764 AAPT Limited 2.44ms from Brisbane, AU
139.214.186.197 AS4837 CHINA UNICOM China169 Backbone 2.51ms from Changchun, CN
174.107.185.245 AS11426 Charter Communications Inc 11.64ms from Charlotte, US
99.107.151.149 AS7018 AT&T Enterprises, LLC 16.93ms from Chicago, US
104.54.63.5 AS7018 AT&T Enterprises, LLC 2.64ms from Dallas, US
98.155.1.37 AS20001 Charter Communications Inc 10.19ms from Honolulu, US
79.146.67.69 AS3352 TELEFONICA DE ESPANA S.A.U. 1.33ms from Madrid, ES
45.189.252.5 AS265613 TRACERED SA DE CV 6.12ms from Mexico City, MX
80.117.197.117 AS3269 Telecom Italia S.p.A. 5.66ms from Milan, IT
89.118.39.85 AS8968 BT Italia S.p.A. 4.57ms from Milan, IT
34.138.219.165 AS396982 Google LLC 0.15ms from Moncks Corner, US
148.74.109.5 AS6128 Cablevision Systems Corp. 9.41ms from Piscataway, US
212.53.87.69 AS13768 Aptum Technologies 0.23ms from Portsmouth, GB
38.48.178.37 AS54600 PEG TECH INC 0.64ms from San Jose, US
201.124.111.245 AS8151 UNINET 3.73ms from Santiago de Queretaro, MX
47.119.185.245 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.50ms from Shenzhen, CN
153.245.98.85 AS4713 NTT DOCOMO BUSINESS,Inc. 3.18ms from Tokyo, JP
20.104.255.197 AS8075 Microsoft Corporation 0.18ms from Toronto, CA
188.168.230.5 AS15774 Limited Liability Company "TTK-Svyaz" 1.33ms from Yekaterinburg, RU
84.136.181.165 AS3320 Deutsche Telekom AG 4.60ms from Berlin, DE
213.22.182.149 AS2860 NOS COMUNICACOES, S.A. 8.28ms from Braga, PT
197.121.211.117 AS36992 ETISALAT MISR 18.15ms from Cairo, EG
13.246.116.181 AS16509 Amazon.com, Inc. 0.07ms from Cape Town, ZA

Traceroute

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

$
traceroute -a -n -q1 -f3 -m7 178.21.141.27
traceroute to 178.21.141.27 (178.21.141.27): 7 hops max, 52 byte packets
3 [AS174] 38.32.230.249 0.867 ms
4 [AS174] 154.54.83.241 1.417 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Toronto, 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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