付费都行，单独的库或在线服务均可，有没有好的推荐？
This topic created in 2265 days ago, the information mentioned may be changed or developed.
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1daydayde Apr 1, 2020
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ThirdFlame Apr 1, 2020  1
现在号码归属地可以迁移、运营商可以携转。 所以除非是接入到运营商系统内查，否则数据逐渐会越来越不准确。
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