как можно узнать кому принадлежит айпишник 176.215.68.13???

IP Lookup — просмотр информации об ip-адресе и подсетях

Reverse Lookup: основное имя домена для адреса 176.215.68.13 – dynamicip-176-215-68-13.pppoe.yola.ertelecom.ru
Информация об ip-адресе 176.215.68.13

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See http://www.ripe.net/db/support/db-terms-conditions.pdf

% Note: this output has been filtered.
% To receive output for a database update, use the "-B" flag.

% Information related to '176.215.64.0 - 176.215.71.255'

inetnum: 176.215.64.0 - 176.215.71.255
netname: ERTH-YOLA-PPPOE-9-NET
descr: CJSC "ER-Telecom Holding" Yoshkar-Ola branch
descr: Yoshkar-Ola, Russia
descr: PPPoE individual customers
country: RU
admin-c: ETHD12-RIPE
org: ORG-CHYB3-RIPE
tech-c: ETHD12-RIPE
status: ASSIGNED PA
mnt-by: RAID-MNT
source: RIPE # Filtered
remarks: INFRA-AW

% Information related to '176.215.64.0/21AS41786'

route: 176.215.64.0/21
origin: AS41786
org: ORG-CHYB3-RIPE
descr: CJSC "ER-Telecom Holding" Yoshkar-Ola branch
descr: Yoshkar-Ola, Russia
mnt-by: RAID-MNT
source: RIPE # Filtered

% Information related to '176.215.68.0/22AS41786'

route: 176.215.68.0/22
origin: AS41786
org: ORG-CHYB3-RIPE
descr: CJSC "ER-Telecom Holding" Yoshkar-Ola branch
descr: Yoshkar-Ola, Russia
mnt-by: RAID-MNT
source: RIPE # Filtered

inetnum: 176.215.64.0 - 176.215.71.255
netname: ERTH-YOLA-PPPOE-9-NET
descr: CJSC "ER-Telecom Holding" Yoshkar-Ola branch
descr: Yoshkar-Ola, Russia
descr: PPPoE individual customers
country: RU
admin-c: ETHD12-RIPE
org: ORG-CHYB3-RIPE
tech-c: ETHD12-RIPE
status: ASSIGNED PA
mnt-by: RAID-MNT
source: RIPE # Filtered
remarks: INFRA-AW

% Information related to '176.215.64.0/21AS41786'

route: 176.215.64.0/21
origin: AS41786
org: ORG-CHYB3-RIPE
descr: CJSC "ER-Telecom Holding" Yoshkar-Ola branch
descr: Yoshkar-Ola, Russia
mnt-by: RAID-MNT
source: RIPE # Filtered

% Information related to '176.215.68.0/22AS41786'

route: 176.215.68.0/22
origin: AS41786
org: ORG-CHYB3-RIPE
descr: CJSC "ER-Telecom Holding" Yoshkar-Ola branch
descr: Yoshkar-Ola, Russia
mnt-by: RAID-MNT
source: RIPE # Filtered

Например всё что можно узнать - http://geo.flagfox.net/?ip=176.215.68.13 глянь, мб полезное найдешь.

можно только узнать город и провайдера, это йошкар-ола, россия, провайдер ertelecom

думаю это внутренний айпишник - так что только через провайдера.

только через провайдера)