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.czest.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:  2025-07-01T13:41:18Z
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
212.87.96.0/19	AS47377	Orange Belgium SA	8,192
212.87.128.0/19	AS20677	imos Gesellschaft fuer Internet-Marketing und Online-Services mbH	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
212.87.214.0/23	AS44486	Mo's Operations GmbH	512
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
212.87.254.0/23	AS206241	STOWARZYSZENIE DO SPRAW ROZWOJU SPOLECZENSTWA INFORMACYJNEGO SUBREGIONU POLNOCNEGO WOJEWODZTWA SLASKIEGO	512
212.87.212.0/23	AS213250	DeinServerHost	512
212.87.170.0/23	AS206621	Brylenko Oleksandra	512
212.87.180.0/23	AS206621	Brylenko Oleksandra	512
212.87.192.0/23	AS38136	Akari Networks (Tokyo)	512
212.87.194.0/23	AS38136	Akari Networks (Tokyo)	512
212.87.210.0/23	AS209689	Nexi Germany GmbH	512
212.87.208.0/23	AS209689	Nexi Germany GmbH	512
212.87.197.0/24	AS49981	UGN BILISIM INTERNET HIZMETLERI LTD	256
212.87.206.0/24	AS50837	Al-Kam Telecommunication and Information Technology Co. LLC.	256
212.87.203.0/24	AS54252	Private Customer	256
212.87.200.0/24	AS5511	Telecom	256
212.87.202.0/24	AS5511	Internet Utilities Europe and Asia Limited	256
212.87.201.0/24	AS9304	Beijing Tehuadun Starkley Trading Co. Ltd	256
212.87.251.0/24	AS15373	Politechnika Czestochowska	256
212.87.253.0/24	AS15373	The Eduroam Network of Uniwersytet Jana Dlugosza w Czestochowie	256
212.87.217.0/24	AS197537	SKYQUANTUM TELECOM LTD.	256
212.87.169.0/24	AS202538	Brylenko Oleksandra	256
212.87.252.0/24	AS202667	Klasztor OO Paulinow Jasna Gora	256
212.87.196.0/24	AS209192	Sarnet Telekomünikasyon Hizmetleri - Denizli, Türkiye	256
212.87.205.0/24	AS211439	Neterra 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
212.87.198.0/24	AS44620	Netlen Internet Hizmetleri Ltd. Sti.	256
212.87.199.0/24	AS44620	Netlen Internet Hizmetleri Ltd. Sti.	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

35 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	`5.85ms` from Warsaw, PL
212.87.236.1	AS15373 Politechnika Czestochowska	`5.94ms` 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
85.92.114.7	AS214950 HONGKONG CHENG JIAN BAI TECHNOLOGY CO., LIMITED	`0.68ms` from Amsterdam, NL
51.140.229.183	AS8075 Microsoft Corporation	`0.17ms` from Cardiff, GB
158.228.193.119	AS46269 UKG Kronos Systems, LLC	`1.09ms` from Frankfurt am Main, DE
131.220.111.231	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`2.88ms` from Frankfurt am Main, DE
117.26.131.119	AS4134 CHINANET-BACKBONE	`6.94ms` from Fuzhou, CN
189.177.70.247	AS8151 UNINET	`4.00ms` from Guadalajara, MX
113.190.18.7	AS45899 VNPT Corp	`1.18ms` from Hanoi, VN
14.37.218.199	AS4766 Korea Telecom	`0.97ms` from Incheon, KR
99.137.35.87	AS7018 AT&T Enterprises, LLC	`1.76ms` from Los Angeles, US
91.122.194.151	AS12389 PJSC Rostelecom	`17.70ms` from Saint Petersburg, RU
88.95.42.183	AS2119 Telenor Norge AS	`5.55ms` from Sandefjord, NO
183.120.105.135	AS4766 Korea Telecom	`6.80ms` from Seoul, KR
114.44.139.71	AS3462 Data Communication Business Group	`1.18ms` from Taipei, TW
182.117.42.87	AS4837 CHINA UNICOM China169 Backbone	`7.27ms` from Zhengzhou, CN
15.158.152.23	AS16509 Amazon.com, Inc.	`0.17ms` from Atlanta, US
73.38.213.199	AS7922 Comcast Cable Communications, LLC	`7.01ms` from Boston, US
179.36.42.151	AS22927 Telefonica de Argentina	`1.96ms` from Buenos Aires, AR
222.211.85.55	AS38283 CHINANET SiChuan Telecom Internet Data Center	`1.56ms` from Chengdu, CN
103.139.35.151	AS138731 Kovai Fibernet Pvt Ltd	`11.14ms` from Chennai, IN
62.53.238.135	AS6805 Telefonica Germany GmbH & Co.OHG	`0.50ms` from Frankfurt am Main, DE
189.253.146.55	AS8151 UNINET	`4.36ms` from Guadalajara, MX
124.160.83.71	AS4837 CHINA UNICOM China169 Backbone	`5.27ms` from Hangzhou, CN
105.244.91.103	AS36994 Vodacom	`3.69ms` from Johannesburg, ZA
97.188.121.167	AS6167 Verizon Business	`17.03ms` from Los Angeles, US
154.12.55.87	AS979 NetLab Global	`0.36ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 212.87.237.1

traceroute to 212.87.237.1 (212.87.237.1): 64 hops max, 52 byte packets

1 [AS56630] 89.36.160.1 0.244 ms

2 [] 195.182.218.111 0.292 ms

3 [AS196844] 212.191.238.132 4.805 ms

4 [AS196844] 212.191.238.133 5.862 ms

5 [AS15373] 212.87.225.105 5.872 ms

6 *

7 [AS15373] 212.87.237.1 5.889 ms

Measurement taken from

IPinfo ProbeNet in Warsaw, PL

On January 19th 2026

What are IP address ranges?

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