Houston 手机号码格式和区号
Texas, United States
区号
713
281
832
346
Houston 示例号码
(713) 550-1828
+1 7135501828
区号按地区分配，而非按运营商。这标识了号码注册的地点，而非所属网络。
United States 的其他城市
Albuquerque
505
Atlanta
404
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512
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410
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617
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704
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312
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216
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719
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614
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214
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303
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313
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817
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559
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808
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317
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904
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816
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702
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562
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213
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502
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901
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480
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305
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414
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612
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615
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504
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212
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510
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405
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402
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215
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602
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503
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919
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916
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210
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619
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415
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206
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813
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520
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918
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757
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202