It is impossible to list ALL the numbers between 1000 as there are infinitely many of them, starting:
1000.1
1000.01
1000.001
etc
inserting an extra 0 after the decimal point each time, you can go on like this forever without repeating a number and that's before you've got to 1000.2 let alone 1001.
However, if you want just the whole numbers between 1000 and 9999 then they are:
1001, 1002, 1003, 1004, ...., 9995, 9996, 9997, 9998
I'll leave you to insert the missing nine thousand, nine hundred and ninety counting numbers from 1005 to 9994
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1001,1111,1221,1331,1441,1551,1661,1771,1881,1991,2002,2112,2222,2332,2442,2552,2662,2772,2882,2992,3003,3113,3223,3333,3443,3553,3663,3773,3883,3993,4004,4114,4224,4334,4444,4554,4664,4774,4884,4994: 40 numbers in all.
All the odd numbers between 1 and 2001.
All numbers between 1000 and 2000, or anywhere else, can be expressed as a power of another number.
(7777-6666)/1111 = 1 (4444+5555)/(9999/3333) = 3 8888/2222 = 4 4*3 + 1 =13
9999