This is an approximate build reference for Office cumulative updates and service packs.

Update Build URL
RTM 14.0.4763.1000
Jun10- CU 14.0.5114.5000 http://support.microsoft.com/kb/2259686
Aug10- CU 14.0.5123.5000 http://support.microsoft.com/kb/2396341
Oct10- CU 14.0.5128.5000 http://support.microsoft.com/kb/2449183
Dec10- CU 14.0.5130.5000 http://support.microsoft.com/kb/2479673
Feb- CU 14.0.5136.5000 http://support.microsoft.com/kb/2493730
Apr- CU 14.0.5138.5000 http://support.microsoft.com/kb/2528533
SP1 14.0.6029.1000 http://support.microsoft.com/kb/2510690
Jun11-CU 14.0.6106.5000 http://support.microsoft.com/kb/2553023
Aug11- CU 14.0.6109.5000 http://support.microsoft.com/kb/2588842
Oct11- CU 14.0.6112.5000 http://support.microsoft.com/kb/2618119
Dec11- CU 14.0.6114.5000 http://support.microsoft.com/kb/2639884
Feb12- CU 14.0.6117.5000 http://support.microsoft.com/kb/2658222
Apr12- CU 14.0.6120.5000 http://support.microsoft.com/kb/2685449
Jun12- CU 14.0.6123.5000 http://support.microsoft.com/kb/2712235
Aug12- CU 14.0.6126.5000 http://support.microsoft.com/kb/2730388
Oct12- CU 14.0.6129.5000 http://support.microsoft.com/kb/2757117
Dec12- CU 14.0.6131.5000 http://support.microsoft.com/kb/2789671
Feb13- CU 14.0.6134.5000 http://support.microsoft.com/kb/2800779
Apr13- CU 14.0.6137.5000 http://support.microsoft.com/kb/2832226
SP2 14.0.7015.1000 http://support.microsoft.com/kb/2687521
Jun13- CU 14.0.7102.5004 http://support.microsoft.com/kb/2855357
Aug13- CU 14.0.7106.5000 http://support.microsoft.com/kb/2869757
Oct13- CU 14.0.7110.5000 http://support.microsoft.com/kb/2887713
Dec13- CU 14.0.7113.5000 http://support.microsoft.com/kb/2911591
Feb14- CU 14.0.7117.5001 http://support.microsoft.com/kb/2925785
Apr14- CU 14.0.7121.5000 http://support.microsoft.com/kb/2953732
May14- CU 14.0.7123.5000 http://support.microsoft.com/kb/2962903
Jun14- CU 14.0.7125.5000 http://support.microsoft.com/kb/2970263