41.222.151.0/24
AS25163 · 21st Century Technologies Limited
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inetnum: 41.222.144.0 - 41.222.151.255 netname: SCTL1-20080523 descr: 21st Century Technologies Limited country: NG org: ORG-sCTL1-AFRINIC admin-c: WA11-AFRINIC admin-c: OO149-AFRINIC tech-c: WA11-AFRINIC tech-c: JO51-AFRINIC status: ALLOCATED PA notify: wajisebutu@21ctl.com notify: oluwadara.oyeleye@21ctl.com notify: james.olaleye@21ctl.com mnt-by: AFRINIC-HM-MNT mnt-lower: NG-NIGERIA-MNT mnt-domains: NG-NIGERIA-MNT changed: hostmaster@afrinic.net 20201111 changed: hostmaster@afrinic.net 20240412 changed: hostmaster@afrinic.net 20240412 changed: hostmaster@afrinic.net 20240418 source: AFRINIC organisation: ORG-sCTL1-AFRINIC org-name: 21st Century Technologies Limited org-type: LIR country: NG address: 21 st Century Technologies Limited address: Plot 249A Muri Okunola Street address: Victoria Island Annex address: Lagos address: Lagos e-mail: wajisebutu@21ctl.com e-mail: oluwadara.oyeleye@21ctl.com e-mail: james.olaleye@21ctl.com phone: tel:+234-807-842-0591 phone: tel:+234-806-761-3875 phone: tel:+234-803-402-7777 admin-c: OO149-AFRINIC admin-c: WA11-AFRINIC tech-c: JO51-AFRINIC tech-c: WA11-AFRINIC mnt-ref: AFRINIC-HM-MNT mnt-ref: NG-NIGERIA-MNT mnt-by: AFRINIC-HM-MNT notify: hostmaster@afrinic.net changed: oleg@ripe.net 20050418 changed: hostmaster@afrinic.net 20180314 changed: hostmaster@afrinic.net 20190524 changed: hostmaster@afrinic.net 20201007 changed: hostmaster@afrinic.net 20201009 changed: hostmaster@afrinic.net 20210125 changed: hostmaster@afrinic.net 20240214 changed: hostmaster@afrinic.net 20240329 changed: hostmaster@afrinic.net 20240417 changed: hostmaster@afrinic.net 20240419 source: AFRINIC person: James Olaleye address: Plot 249A Muri Okunola Street address: Victoria Island Annex address: Lagos address: Nigeria phone: tel:+234-806-761-3875 e-mail: james.olaleye@21ctl.com nic-hdl: JO51-AFRINIC changed: pooja.bhunjun@afrinic.net 20240417 source: AFRINIC mnt-by: GENERATED-P79UCDWEGULFYKGANY0EJXOSV559CW7H-MNT person: Oluwadara Oyeleye address: Plot 249A Muri Okunola Street address: Victoria Island Annex address: Lagos address: Nigeria phone: tel:+234-807-842-0591 e-mail: oluwadara.oyeleye@21ctl.com nic-hdl: OO149-AFRINIC changed: pooja.bhunjun@afrinic.net 20240417 source: AFRINIC mnt-by: GENERATED-4ECJ0JX23EG73GJRGRSXVUMSU4LN9BHJ-MNT person: Wale Ajisebutu address: 21st Century Technologies address: Plot 249A Muri Okunola Street address: Victoria Island, Lagos address: Nigeria phone: tel:+234-1-262-1195 fax-no: tel:+234-1-262-1195 e-mail: wajisebutu@21ctl.com nic-hdl: WA11-AFRINIC notify: wajisebutu@21ctl.com mnt-by: NG-NIGERIA-MNT changed: oleg@21ctl.com 20050418 source: AFRINIC
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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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