This sample is the subset of the sources in the old (B1950) JCMT pointing catalog also having coordinates in the ICRF (Ma et al 1998,Astronomical Journal,116,516). The coordinates are the ICRF J2000.0 ones, and the 0.85mm fluxes are extrapolated from Edelson's 1987 2.7mm fluxes and spectral indices. The 1.1mm fluxes are those listed in the old catalog and represent more recent observational or anecdotal results.
Blazars are, of course, notoriously variable . . .

  Name               RA   (J2000.0)  Dec      fluxes (Jy)      1.1mm
                hh mm ss.sss   dd mm ss.ss   1.1  0.85    variability
--------        --------------------------   ---  ----   ------------
0003-066        00 06 13.893 - 06 23 35.33   0.9   1.2   0.7 - 0.9  
0048-097        00 50 41.318 - 09 29 05.21   0.9   0.7   0.7 - 0.9  
PKS0106         01 08 38.771 + 01 35 00.32   0.6   1.4   0.3 - 0.6  
0133+476        01 36 58.595 + 47 51 29.10   1.4   2.7   0.4 - 1.5  
0149+218        01 52 18.059 + 22 07 07.70   0.6   0.6     
0202+319        02 05 04.925 + 32 12 30.10   0.4   0.2   0.2 - 0.7  
0212+735        02 17 30.813 + 73 49 32.62   0.8   0.6   0.4 - 0.8  
0215+015        02 17 48.955 + 01 44 49.70   0.3         0.3 - 0.85 
0219+428        02 22 39.612 + 43 02 07.80   0.3         0.3 - 0.5  
0221+067        02 24 28.428 + 06 59 23.34   0.6   1.1        
0224+671        02 28 50.051 + 67 21 03.03   0.8   1.8     0.8 - 1.9  
0234+285        02 37 52.406 + 28 48 08.99   0.9   4.2     0.9 - 1.9  
0235+164        02 38 38.930 + 16 36 59.27   0.5   3.2     0.8 - 3.5  
0300+471        03 03 35.242 + 47 16 16.28   0.6   1.5                   
0306+102        03 09 03.624 + 10 29 16.34   0.5   0.6                 
3C84            03 19 48.160 + 41 30 42.10   2.2  21.1     1.8 - 8.0  
0336-019        03 39 30.938 - 01 46 35.80   1.3   1.8     0.9 - 1.3  
0355+508        03 59 29.747 + 50 57 50.16   1.3   1.9     1.0 - 2.0  
0420-014        04 23 15.801 - 01 20 33.07   3.0   4.8     0.8 - 4.2
0422+004        04 24 46.842 + 00 36 06.33   0.7           
3C120           04 33 11.096 + 05 21 15.62   0.8   1.3     0.5 - 1.6
PKS0438         04 40 17.180 - 43 33 08.60   0.4        
0454-234        04 57 03.179 - 23 24 52.02   0.4   0.4     0.4 - 0.5
0458-020        05 01 12.810 - 01 59 14.26   0.8   1.4     0.6 - 0.8
0521-365        05 22 57.985 - 36 27 30.85   4.2           2.7 - 4.2
0528+134        05 30 56.417 + 13 31 55.15   3.5   0.7     1.9 - 3.5
0529+075        05 32 38.998 + 07 32 43.35   0.7   1.3     
PKS0537         05 38 50.362 - 44 05 08.94   4.5           1.1 - 5.1
0552+398        05 55 30.806 + 39 48 49.17   0.9   1.1     0.7 - 0.9
0605-085        06 07 59.699 - 08 34 49.98   1.1   2.7     0.6 - 1.1
0607-157        06 09 40.950 - 15 42 40.67   5.9           2.7 - 5.9
0642+449        06 46 32.026 + 44 51 16.59   0.5   0.8     
0716+714        07 21 53.448 + 71 20 36.36   0.5   2.9     0.3 - 1.5
0727-115        07 30 19.112 - 11 41 12.60   0.3   1.3     0.3 - 1.1
0735+178        07 38 07.394 + 17 42 19.00   0.8   1.3     0.7 - 3.0
0736+017        07 39 18.034 + 01 37 04.62   1.3   1.1     0.6 - 3.5
0745+241        07 48 36.109 + 24 00 24.11   0.6   0.9     
0748+126        07 50 52.046 + 12 31 04.83   0.9   0.6     0.7 -     
0754+100        07 57 06.643 + 09 56 34.85   0.8   0.5     0.7 - 0.9 
0829+046        08 31 48.877 + 04 29 39.09   0.7           0.2 - 1.3 
0836+710        08 41 24.365 + 70 53 42.17   1.4   0.5     0.2 - 1.4 
OJ287           08 54 48.875 + 20 06 30.64   1.3   7.8     1.0 - 4.0 
0917+449        09 20 58.458 + 44 41 53.99   1.0   0.4     
0923+392        09 27 03.014 + 39 02 20.85   3.0   1.7     0.5 - 3.0
0954+685        09 58 47.245 + 65 33 54.82   0.5          0.5 - 0.8
1034-293        10 37 16.080 - 29 34 02.81   1.5   1.6     
1044+719        10 48 27.620 + 71 43 35.94   1.5   1.8     
1055+018        10 58 29.605 + 01 33 58.82   1.4   2.3     0.8 - 1.7
1147+245        11 50 19.212 + 24 17 53.84   0.5           0.4 -   
1156+295        11 59 31.834 + 29 14 43.83   0.7   1.7     0.4 - 1.3
1213-172        12 15 46.752 - 17 31 45.40   0.6   1.2     
3C273           12 29 06.700 + 02 03 08.60  10.2  13.0     6.0 - 24.0
VirgoA          12 30 49.423 + 12 23 28.04   1.9           ext. and asymmetric     
3C279           12 56 11.167 - 05 47 21.52  11.1  11.0     4.0 - 21.0
1308+326        13 10 28.664 + 32 20 43.78   0.8   0.4     0.5 - 1.5 
1313-333        13 16 07.986 - 33 38 59.17   0.6           0.6 - 1.4 
1334-127        13 37 39.783 - 12 57 24.69   5.5   5.5     2.1 - 5.5 
1413+135        14 15 58.817 + 13 20 23.71   0.7   3.1     0.2 - 2.2 
1418+546        14 19 46.597 + 54 23 14.78   0.3   2.8     0.3 - 0.8 
1510-089        15 12 50.533 - 09 05 59.83   1.1  11.4     0.6 - 1.7 
1514-241        15 17 41.813 - 24 22 19.48   1.1   1.2     0.5 - 1.7 
1538+149        15 40 49.492 + 14 47 45.88   0.3   0.5     
1548+056        15 50 35.269 + 05 27 10.45   0.3   1.0     
1606+106        16 08 46.203 + 10 29 07.78   0.5   0.7     0.5 - 0.7  
1611+343        16 13 41.064 + 34 12 47.91   1.0   0.8     1.0 - 1.4  
1633+382        16 35 15.493 + 38 08 04.50   0.7   1.2     0.7 - 1.0  
3C345           16 42 58.810 + 39 48 36.99   1.8   6.4     0.8 - 6.0  
1657-261        17 00 53.154 - 26 10 51.72   1.2           0.8 - 1.9 
1730-130        17 33 02.706 - 13 04 49.55   6.4   4.8     3.4 - 7.0 
1739+552        17 40 36.978 + 52 11 43.41   0.6           
1741-038        17 43 58.856 - 03 50 04.62   1.1   2.4     
1749+096        17 51 32.819 + 09 39 00.73   1.1   2.1     
1749+701        17 48 32.840 + 70 05 50.77   0.2           0.2 - 2.4 
1803+784        18 00 45.684 + 78 28 04.02   1.3   2.3     1.3 - 1.6
1807+698        18 06 50.681 + 69 49 28.11   0.8   2.2     0.4 - 0.8
1823+568        18 24 07.068 + 56 51 01.49   1.8   1.0     1.4 - 1.8
1908-202        19 11 09.653 - 20 06 55.11   1.2   1.2     
1921-293        19 24 51.056 - 29 14 30.12   5.5   7.8     3.8 - 8.0
1923+210        19 25 59.605 + 21 06 26.16   0.4   1.2     0.4 - 0.7
1928+738        19 27 48.495 + 73 58 01.57   0.5   1.1     
1958-179        20 00 57.090 - 17 48 57.67   1.4           1.4 - 1.5
2005+403        20 07 44.945 + 40 29 48.60   0.6   1.3     0.3 -    
2007+776        20 05 30.999 + 77 52 43.25   1.0   1.6     0.6 - 1.0
2008-159        20 11 15.711 - 15 46 40.25   0.6   0.6     
2021+317        20 23 19.017 + 31 53 02.31   0.7   1.9     
2037+511        20 38 37.035 + 51 19 12.66   0.7        
2059+034        21 01 38.834 + 03 41 31.32   0.5   1.5     
2134+004        21 36 38.586 + 00 41 54.21   0.7   1.0     0.5 - 0.7
2145+067        21 48 05.459 + 06 57 38.60   2.5   4.6     1.9 - 3.0
2155-304        21 58 52.065 - 30 13 32.12   0.3                 
2155-152        21 58 06.282 - 15 01 09.33   0.6   0.8              
BLLAC           22 02 43.291 + 42 16 39.98   2.7   4.9     2.0 - 8.0
2201+315        22 03 14.976 + 31 45 38.27   0.9           0.4 -    
2223-052        22 25 47.259 - 04 57 01.39   2.0   7.3     0.8 - 4.1
2227-088        22 29 40.084 - 08 32 54.44   1.0   2.1     0.8 - 1.4
2230+114        22 32 36.409 + 11 43 50.90   0.8   1.3     0.8 - 2.0
2243-123        22 46 18.232 - 12 06 51.28   0.9   2.4     0.8 - 4.5
2251+158        22 53 57.748 + 16 08 53.56   2.8   6.8     1.9 - 10.8
2255-282        22 58 05.963 - 27 58 21.26   1.8   2.8     0.5 - 3.0 
2318+049        23 20 44.857 + 05 13 49.95   0.8   2.4     0.3 - 0.8 
2345-167        23 48 02.609 - 16 31 12.02   0.5   1.1     0.5