Houyuan (後元 py. hòu yúan) 163 BC-156 BC
Zhongyuan (中元 py. zhōng yúan) 149 BC-143 BC
Houyuan (後元 py. hòu yúan) 143 BC-141 BC
Jianyuan (建元 py. jìan yúan) 140 BC-135 BC
Yuanguang (元光 py. yúan gūang) 134 BC-129 BC
Yuanshuo (元朔 py. yúan shùo) 128 BC-123 BC
Yuanshou (元狩 py. yúan shòu) 122 BC-117 BC
Yuanding (元鼎 py. yúan dĭng) 116 BC-111 BC
Yuanfeng (元封 py. yúan fēng) 110 BC-105 BC
Taichu (太初 py. tài chū) 104 BC-101 BC
Tianhan (天漢 py. tīan hàn) 100 BC-97 BC
Taishi (太始 py. tài shĭ) 96 BC-93 BC
Zhenghe (征和 py. zhēng hé) 92 BC-89 BC
Houyuan (後元 py. hòu yúan) 88 BC-87 BC
Shiyuan (始元 py. shĭ yúan) 86 BC-80 BC
Yuanfeng (元鳳 py. yúan fèng) 80 BC-75 BC
Yuanping (元平 py. yúan píng) 74 BC
Benshi (本始 py. bĕn shĭ) 73 BC-70 BC
Dijie (地節 py. dì jíe) 69 BC-66 BC
Yuankang (元康 py. yúan kāng) 65 BC-61 BC
Shenjue (神爵 py. shén júe) 61 BC-58 BC
Wufeng (五鳳 py. wŭ fèng) 57 BC-54 BC
Ganlu (甘露 py. gān lù) 53 BC-50 BC
Huanglong (黃龍 py. húang lóng) 49 BC
Chuyuan (初元 py. chū yúan) 48 BC-44 BC
Yongguang (永光 py. yŏng gūang) 43 BC-39 BC
Jianzhao (建昭 py. jìan zhāo) 38 BC-34 BC
Jingning (竟寧 py. jìng níng) 33 BC
Jianshi (建始 py. jìan shĭ) 32 BC-28 BC
Heping (河平 py. hé píng) 28 BC-25 BC
Yangshuo (陽朔 py. yáng shùo) 24 BC-21 BC
Hongjia (鴻嘉 py. hóng jīa) 20 BC-17 BC
Yongshi (永始 py. yŏng shĭ) 16 BC-13 BC
Yuanyan (元延 py. yúan yán) 12 BC-9 BC
Suihe (綏和 py. sūi hé) 8 BC-7 BC
Jianping (建平 py. jìan píng) 6 BC-3 BC
Yuanshou (元壽 py. yúan shòu) 2 BC-1 BC
Yuanshi (元始 py. yúan shĭ) 1-6
Jushe (居攝 py. jū shè) February AD 6- October AD 8
Chushi (初始 py. chū shĭ) November AD 8-January AD 9
Shijianguo (始建國 shi3 jian4 guo1, "Start to establish a nation") 9- 13
Tianfeng (天鳳 tian1 feng1, "Heavenly Feng") 14-19
Dihuang (地皇 di4 huang2, "Earthly Emperor") 20-23
Gengshi (更始 py. gèng shĭ) 23-25
Jianwu (建武 py. jìan wŭ) 25-56
Jianwuzhongyuan (建武中元 py. jìan wŭ zhōng yúan) 56-58
Yongping (永平 py. yŏng píng) 58-75
Jianchu (建初 py. jìan chū) 76-84
Yuanhe (元和 py. yúan hé) 84-87
Zhanghe (章和 py. zhāng hé) 87-88
Yongyuan (永元 py. yŏng yúan) 89-105
Yuanxing (元興 py. yúan xīng) 105-106
Yanping (延平 py. yán píng) 106-107
Yongchu (永初 py. yŏng chū) 107-113
Yuanchu (元初 py. yúan chū) 114-120
Yongning (永寧 py. yŏng níng) 120-121
Jianguang (建光 py. jian4 guang1) 121-122
Yanguang (延光 py. yán gūang) 122-125
Yongjian (永建 py. yŏng jìan) 126-132
Yangjia (陽嘉 py. yáng jīa) 132-135
Yonghe (永和 py. yŏng hé) 136-141
Hanan (漢安 py. hàn ān) 142-144
Jiankang (建康 py. jìan kāng) 144
Yongxi (永熹 py. yōng xī) 145
Benchu (本初 py. bĕn chū) 146
Jianhe (建和 py. jìan hé) 147-149
Heping (和平 py. hé píng) 150
Yuanjia (元嘉 py. yúan jīa) 151-153
Yongxing (永興 py. yŏng xīng) 153-154
Yongshou (永壽 py. yŏng shòu) 155-158
Yanxi (延熹 py. yán xī) 158-167
Yongkang (永康 py. yŏng kāng) 167
Jianning (建寧 py. jìan níng) 168-172
Xiping (熹平 py. xī píng) 172-178
Guanghe (光和 py. gūang hé) 178-184
Zhongping (中平 py. zhōng píng) 184-189
Yonghan (永漢 py. yŏng hàn) 189
Chuping (初平 py. chū píng) 190-193
Xingping (興平 py. xīng píng) 194-195
Jianan (建安 py. jìan ān) 196-220
Yankang (延康 py. yán kāng) 220

Here are all the reign periods for the Han. For you that don't know the Han was the beginner of the Reign Period idea, I think, so these are the first reign periods, and thats why the people like Liu Bang don't have reign periods cause they weren't around back then. I'm not sure if they're correct post if you notice a mistake.