1. All IP Ranges
  2. 212.0.0.0/8
  3. 212.87.0.0/16
  4. AS15373  | 212.87.236.0/23

212.87.236.0/23

AS15373  ·  Politechnika Czestochowska

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Summary

Country Poland
Domain pcz.pl
ASN AS15373
Registry RIPE
ID PCZ-EDUROAM1-PL

WHOIS Details

inetnum:        212.87.237.0 - 212.87.237.255
netname:        PCZ-EDUROAM1-PL
descr:          The Eduroam Network of Politechnika Czestochowska
country:        PL
admin-c:        WR1082-RIPE
tech-c:         CZ512-RIPE
status:         ASSIGNED PA
mnt-by:         PL-CZESTMAN-MNT
mnt-lower:      PL-CZESTMAN-MNT
mnt-routes:     PL-CZESTMAN-MNT
created:        2013-10-31T14:42:33Z
last-modified:  2013-10-31T14:48:05Z
source:         RIPE
abuse-email:    abuse@man.pcz.pl
abuse-c:        CZ512-RIPE
abuse-org:      ORG-PC2-RIPE

role:           CzestMAN Operations
address:        Czestochowa University of Technology
address:        Metropolitan Area Network CzestMAN
address:        ul. Dabrowskiego 71, 42-200 Czestochowa
address:        POLAND
phone:          +48 34 3250317
e-mail:         noc@man.pcz.pl
remarks:        ===================================================
remarks:        in case of abuse (hacking, spam sending, intrusion,
remarks:        other unacceptet activities) please use only
remarks:        --- e-mail abuse@man.pcz.pl ---
remarks:        ===================================================
admin-c:        WR1082-RIPE
tech-c:         LK470-RIPE
tech-c:         WR1082-RIPE
tech-c:         PD9048-RIPE
nic-hdl:        CZ512-RIPE
mnt-by:         PL-CZESTMAN-MNT
created:        2006-03-22T17:50:55Z
last-modified:  2026-02-05T15:32:28Z
source:         RIPE
abuse-mailbox:  abuse@man.pcz.pl

person:         Wojciech Rozycki
address:        Czestochowa University of Technology
address:        Metropolitan Area Network CzestMAN
address:        42-200 Czestochowa
address:        ul. Dabrowskiego 71
address:        Poland
phone:          +48 34 3250317
e-mail:         woj@man.pcz.pl
nic-hdl:        WR1082-RIPE
notify:         woj@man.pcz.pl
mnt-by:         PL-CZESTMAN-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2025-07-01T13:43:18Z
source:         RIPE

route:          212.87.236.0/23
descr:          The network of Polonia University in Czestochowa
descr:          Czestochowa,POLAND
origin:         AS15373
remarks:        operationa
mnt-by:         PL-CZESTMAN-MNT
created:        2012-12-17T15:21:04Z
last-modified:  2012-12-17T15:21:04Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 212.87.0.0/16

Range ASN Company Num of IPs
212.87.32.0/19 AS12512 CBXNET combox internet GmbH 8,192
212.87.128.0/19 AS20677 imos Gesellschaft fuer Internet-Marketing und Online-Services mbH 8,192
212.87.96.0/19 AS47377 Orange Belgium SA 8,192
212.87.64.0/19 AS8607 Digital Space Group Limited 8,192
212.87.224.0/21 AS15373 The network of Czestochowa University of Technology 2,048
212.87.242.0/23 AS209860 The network of MyNET Michal Bronczkowski 512
212.87.248.0/23 AS209860 The network of MyNET Michal Bronczkowski 512
212.87.172.0/23 AS206621 Brylenko Oleksandra 512
212.87.214.0/23 AS44486 Mo's Operations GmbH 512
212.87.212.0/23 AS213250 DeinServerHost 512
212.87.180.0/23 AS206621 Brylenko Oleksandra 512
212.87.254.0/23 AS206241 STOWARZYSZENIE DO SPRAW ROZWOJU SPOLECZENSTWA INFORMACYJNEGO SUBREGIONU POLNOCNEGO WOJEWODZTWA SLASKIEGO 512
212.87.170.0/23 AS206621 Brylenko Oleksandra 512
212.87.208.0/23 AS209689 Nexi Germany GmbH 512
212.87.210.0/23 AS209689 Nexi Germany GmbH 512
212.87.194.0/23 AS38136 Akari Networks (Tokyo) 512
212.87.192.0/23 AS38136 Akari Networks (Tokyo) 512
212.87.201.0/24 AS42831 Private Customer 256
212.87.198.0/24 AS44620 Netlen Internet Hizmetleri Ltd. Sti. 256
212.87.199.0/24 AS44620 Netlen Internet Hizmetleri Ltd. Sti. 256
212.87.203.0/24 AS834 Internet Utilities Europe and Asia Limited 256
212.87.206.0/24 AS50837 Al-Kam Telecommunication and Information Technology Co. LLC. 256
212.87.200.0/24 AS5511 Telecom 256
212.87.251.0/24 AS15373 Politechnika Czestochowska 256
212.87.217.0/24 AS197537 SKYQUANTUM TELECOM LTD. 256
212.87.253.0/24 AS15373 The Eduroam Network of Uniwersytet Jana Dlugosza w Czestochowie 256
212.87.169.0/24 AS202538 Brylenko Oleksandra 256
212.87.252.0/24 AS202667 Klasztor OO Paulinow Jasna Gora 256
212.87.202.0/24 AS5511 Internet Utilities Europe and Asia Limited 256
212.87.196.0/24 AS209192 Sarnet Telekomünikasyon Hizmetleri - Denizli, Türkiye 256
212.87.205.0/24 AS211439 Neterra Ltd. 256
212.87.197.0/24 AS214941 UGN BILISIM INTERNET HIZMETLERI LTD 256
212.87.222.0/24 AS215540 GLOBAL CONNECTIVITY SOLUTIONS LLP 256
212.87.216.0/24 AS26548 FINE GROUP SERVERS SOLUTIONS LLC 256
212.87.218.0/24 AS26548 FINE GROUP SERVERS SOLUTIONS LLC 256
212.87.219.0/24 AS26548 FINE GROUP SERVERS SOLUTIONS LLC 256
212.87.220.0/24 AS41745 Baykov Ilya Sergeevich 256
212.87.223.0/24 AS41745 Baykov Ilya Sergeevich 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Pingable IPs

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

IP Address ASN Details
212.87.237.1 AS15373 Politechnika Czestochowska 5.71ms from Warsaw, PL
212.87.236.1 AS15373 Politechnika Czestochowska 5.71ms 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
78.99.238.23 AS6855 Slovak Telekom, a.s. 6.96ms from Bratislava, SK
36.68.100.39 AS7713 PT Telekomunikasi Indonesia 1.92ms from Jakarta, ID
41.184.146.7 AS29091 ipNX Nigeria Limited 11.80ms from Lagos, NG
90.75.145.103 AS12479 Orange Espagne SA 3.56ms from Madrid, ES
89.128.82.39 AS12479 Orange Espagne SA 14.28ms from Madrid, ES
83.244.47.119 AS12975 PALTEL Autonomous System 3.41ms from Ramallah, PS
89.111.20.23 AS12993 Sabiedriba ar ierobezotu atbildibu DELSKA Latvia 0.40ms from Riga, LV
121.132.226.119 AS4766 Korea Telecom 1.58ms from Seoul, KR
216.8.152.7 AS7057 Managed Network Systems Inc. 5.88ms from Toronto, CA
185.153.38.167 AS42981 Pawel Kosiorowski trading as RES.PL Kosiorowski, Wisniowski sp.j. 6.17ms from Warsaw, PL
100.51.226.71 AS14618 Amazon.com, Inc. 0.50ms from Ashburn, US
209.239.197.183 AS36094 Worcester State University 2.13ms from Boston, US
91.120.120.167 AS5483 Magyar Telekom Plc. 5.65ms from Budapest, HU
35.135.241.247 AS20115 Charter Communications LLC 2.52ms from Dallas, US
36.249.131.87 AS4837 CHINA UNICOM China169 Backbone 7.93ms from Fuzhou, CN
79.230.228.151 AS3320 Deutsche Telekom AG 2.38ms from Hamburg, DE
101.187.186.199 AS1221 Telstra Limited 1.64ms from Melbourne, AU
115.215.241.87 AS4134 CHINANET-BACKBONE 8.28ms from Ningbo, CN
126.25.211.231 AS17676 SoftBank Corp. 10.67ms from Osaka, JP
45.142.199.87 AS44702 JORDANIAN EUROPEAN INTERNET SERVICES CO LLC 3.69ms from Petaẖ Tiqva, IL
115.139.127.7 AS17858 LG POWERCOMM 2.26ms from Seoul, KR
122.40.234.167 AS17858 LG POWERCOMM 1.85ms from Seoul, KR
118.150.156.39 AS18419 DaDa Broadband LTD. 1.32ms from Taipei, TW
61.176.184.247 AS4837 CHINA UNICOM China169 Backbone 7.84ms from Tieling, CN
64.65.0.199 AS36849 1st Amendment Encrypted Openness LLC 0.28ms from Amsterdam, NL

Traceroute

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

$
traceroute -a -n -q1 -f4 212.87.236.129
traceroute to 212.87.236.129 (212.87.236.129): 64 hops max, 52 byte packets
4 [AS3356] 171.75.9.134 21.554 ms
5 [AS3356] 212.162.10.82 26.308 ms
6 [AS8501] 212.191.225.5 32.895 ms
7 *
Measurement taken from IPinfo ProbeNet in Coventry, GB
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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