Telephone & Block Group Database – Records 318,370      Product Code 206.
      If you are looking for data regarding income, occupation or education etc.., then the
      smallest geographic unit for which you'll be able to get that data is the block group.
      The Tract/Block group database is quite large and is best used by applying the data in
      an overlay to your base map.

       Structure for table: Telco Tract & Block Group                  Product Code 206
        Number of data records: 318370
        Field         Field Name             Type               Width

1

State

Character

4

Location State

2

Comzip

Character

10

Community Zip Code

3

City

Character

10

City

4

Community

Character

35

Name of Community

5

County

Character

35

Name of County

6

Commalias 

Character

35

Alias Name for Community

7

Centract

Character

35

Number for Census Tract

8

Blockgroup

Character 

35

Number for Block Group

9

Totalpop

Character

15

Total Population for Census Tract 

10

County fips

Character

15

FIPS Number for County