internet_address_survey_it25c-20090319 (03/19/2009 to 04/17/2009)
收藏官方服务：
资源简介：
To collect this data, an Internet-wide IP address sweep was conducted. Every IP address in the ranges allocated by IANA was pinged once by sending ICMP ECHO_REQUEST (PING) packet. If the response (ICMP_ECHO_REPLY) came, its IP address was recorded in this data-set. In all, over 2.5 billion distinct IP addresses were probed during this experiment.
提供机构：
IMPACT创建时间：
2017-05-02
