Home/United States of America/CENIC// ARIN · cenicCENICUnited States of AmericaASN 数量6IPv4 区块9IPv4 地址557,056IPv6 区块1概览ASN6IPv49IPv61活动28注册记录注册局ARIN首次分配1989-12-21最近分配2024-07-08最后更新2026-07-28国家/地区USUnited States of America