212.87.236.0/23
AS15373 · Politechnika Czestochowska
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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: [email protected] 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: [email protected] remarks: =================================================== remarks: in case of abuse (hacking, spam sending, intrusion, remarks: other unacceptet activities) please use only remarks: --- e-mail [email protected] --- 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: [email protected] 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: [email protected] nic-hdl: WR1082-RIPE notify: [email protected] 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 |
---|---|---|---|
212.87.64.0/19 | AS8607 | Digital Space Group Limited | 8,192 |
212.87.128.0/19 | AS20677 | imos Gesellschaft fuer Internet-Marketing und Online-Services mbH | 8,192 |
212.87.32.0/19 | AS12512 | CBXNET combox internet GmbH | 8,192 |
212.87.96.0/19 | AS47377 | Orange Belgium SA | 8,192 |
212.87.0.0/20 | AS8890 | University of Warsaw | 4,096 |
212.87.16.0/20 | AS8664 | University of Warsaw | 4,096 |
212.87.224.0/21 | AS15373 | The network of Czestochowa University of Technology | 2,048 |
212.87.244.0/22 | AS25084 | The Network of Biuro Rachunkowe & Uslugi Komp.Marek Mozdzioch | 1,024 |
212.87.170.0/23 | AS206621 | Brylenko Oleksandra | 512 |
212.87.238.0/23 | AS15373 | The Eduroam Network of Uniwersytet Jana Dlugosza w Czestochowie | 512 |
212.87.242.0/23 | AS209860 | The network of MyNET Michal Bronczkowski | 512 |
212.87.232.0/23 | AS15373 | The Eduroam Network of Politechnika Czestochowska | 512 |
212.87.254.0/23 | AS206241 | STOWARZYSZENIE DO SPRAW ROZWOJU SPOLECZENSTWA INFORMACYJNEGO SUBREGIONU POLNOCNEGO WOJEWODZTWA SLASKIEGO | 512 |
212.87.234.0/23 | AS15373 | The Network of Uniwersytet Jana Dlugosza w Czestochowie | 512 |
212.87.240.0/23 | AS25084 | Politechnika Czestochowska | 512 |
212.87.208.0/23 | AS209689 | Nexi Germany GmbH | 512 |
212.87.205.0/24 | AS22773 | Private Customer | 256 |
212.87.216.0/24 | AS22773 | FINE GROUP SERVERS SOLUTIONS LLC | 256 |
212.87.219.0/24 | AS22773 | FINE GROUP SERVERS SOLUTIONS LLC | 256 |
212.87.218.0/24 | AS22773 | FINE GROUP SERVERS SOLUTIONS LLC | 256 |
212.87.217.0/24 | AS23422 | SKYQUANTUM TELECOM LTD. | 256 |
212.87.252.0/24 | AS202667 | Klasztor OO Paulinow Jasna Gora | 256 |
212.87.204.0/24 | AS22773 | Private Customer | 256 |
212.87.169.0/24 | AS202538 | Brylenko Oleksandra | 256 |
212.87.207.0/24 | AS22773 | Neterra Ltd. | 256 |
Hosted domains
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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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