AT&T
Name/Description
* Indicate any changes to default line jack numbers or extension jack numbers in the space provided in these columns, if applicable
Centrex Extension No.
Form B: Centrex Extension Numbers
Line Jack*
Centrex Phone No.
Extension Jack*
Number
Number
01
10
02
11
03
12
13
04
05
14
06
15
07
16
17
08
09
18
10
19
11
20
12
21
13
22
14
23
15
24
16
25
17
26
18
27
19
28
20
29
21
30
22
31
23
32
24
33