• We believe that all cities (counties) of Guangdong province have 3 digit city codes, but we do not have updated information that is definite (see changes for details). Your help is greatly appreciated.
• Guangzhou: The local phone number changed to 8 digits on June 8, 1996 (including Panyuu, Zhencheng, Huadu, Conghua). The rule is, add 8 before the original 7-digits if the first digit of the original number was 2-7 (2xx-xxxx to 82xx-xxxx), otherwise (8xx-xxxx) add 1 after the 8 (81xx-xxxx).

广州	20	Guangzhou
花都	20	Huadu (花县 Huaxian)
从化	20	Conghua (was 2092)
新丰	20	Xinfeng (was 2093)
龙门	20	Longmen (was 2094)
增城	20	Zengcheng (was 2095)
潘禹	20	Panyu
潮阳	661	Chaoyang (was 7644)
阳春	662	Yangchun (was 7676)
阳西	662	Yangxi
普宁	663	Puning (was 7649)
揭阳	663	Jieyang (was 7640)
茂名	668	Maoming (was 7683)
韶关	751	Shaoguan
曲江	751	Qujiang
博罗	752	Boluo (was 7622)
惠州	752	Huizhou
惠阳	752	Huiyang
惠东	752	Huidong (was 7628)
梅州	753	Meizhou
梅县	753	Meixian
大埔	753	Dapu(Dabu?) (was 7633)
汕头	754	Shantou
澄海	754	Chenghai
深圳	755	Shenzhen
宝安	755	Baoan
龙岗	755	Longgang
南头	755	Nantou
蛇口	755	Shekou
珠海	756	Zhuhai
斗门	756	Doumen (was 7655)
佛山	757	Foshan
南海	757	Nanhai (was 7651)
三水	757	Sanshui (was 7652)
肇庆	758	Zhaoqing
高要	758	Gaoyao
广宁	758	Guangning (was 7662)
四会	758	Sihui (was 7663)
德庆	758	Deqing (was 7668)
封开	758	Fengkai (was 7669)
湛江	759	Zhanjiang
吴川	759	Wuchuan (was 7679)
新会	750	Xinhui (was 7656)
开平	750	Kaiping (was 7658)
江门	750	Jiangmen (was 7682)
恩平	750	Enping (was 7659)
鹤山	750	Heshan (was 7680)
佛冈	763	Fogang (was 7615)
清远	763	Qingyuan (was 7617)
顺德	765	Shunde (was 7653)
罗定	766	Luoding (was 7666)
潮州	768	Chaozhou (was 7681)
东莞	769	Dongguan (was 7620)
中山	760	Zhongshan (was 7654)
乐昌	7611	Lechang (changed?)
英德	7616	Yingde (changed?)
南雄	7618	Nanxiong (changed?)
惠阳	7621	Huiyang (changed?)
河源	7623	Heyuan (changed?)
蕉岭	7632	Jiaoling (changed?)
丰顺	7634	Fengshun (changed?)
五华	7635	Wuhua (changed?)
兴宁	7636	Xingning (changed?)
平远	7637	Pingyuan (changed?)
连县	7639	Lianxian (changed?)
饶平	7642	Raoping (changed?)
南澳	7643	Nan'ao (changed?)
惠来	7645	Huilai (changed?)
陆丰	7646	Lufeng (changed?)
海丰	7647	Haifeng (changed?)
揭西	7648	Jiexi (changed?)
晋宁	7649	Jinning (changed?)
台山	7657	Taishan (changed?)
高明	7650	Gaoming (changed?)
新兴	7664	Xinxing (changed?)
云浮	7665	Yunfu (changed?)
郁南	7667	Yunan (changed?)
遂溪	7671	Suixi (changed?)
廉江	7672	Lianjiang (changed?)
化州	7673	Huazhou (changed?)
高州	7674	Gaozhou (changed?)
阳平	7677	Yangping (changed?)
阳江	7677	Yangjiang (changed?)
电白	7678	Dianbai (changed?)
徐闻	7670	Xuwen (changed?)
海康	7600	Haikang (changed?)
仁化	7612	Renhua (changed?)
龙川	7626	Longchuan (changed?)
紫金	7627	Zijin (changed?)
乳源	7630	Ruyuan (changed?)
信宜	7675	Xinyi (changed?)