Daftar wilayah
- 15283 - At & T, Pittsburgh, Allegheny, Pennsylvania
- 15255 - Bell Telephone Co, Pittsburgh, Allegheny, Pennsylvania
- 15234 - Bra# 52, Pittsburgh, Allegheny, Pennsylvania
- 15289 - Carnegie Mellon Univ, Pittsburgh, Allegheny, Pennsylvania
- 15270 - Columbia Gas of Pa, Pittsburgh, Allegheny, Pennsylvania
- 15267 - Duguesne, Pittsburgh, Allegheny, Pennsylvania
- 15279 - Duquesne Light Co, Pittsburgh, Allegheny, Pennsylvania
- 15282 - Duquesne Univ, Pittsburgh, Allegheny, Pennsylvania
- 15277 - Eastern Area, Pittsburgh, Allegheny, Pennsylvania
- 15281 - Macys Dept Store, Pittsburgh, Allegheny, Pennsylvania
- 15262 - Mellon Bank 1, Pittsburgh, Allegheny, Pennsylvania
- 15252 - Mellon Bank, Pittsburgh, Allegheny, Pennsylvania
- 15253 - Mellon Bank, Pittsburgh, Allegheny, Pennsylvania
- 15254 - Mellon Bank, Pittsburgh, Allegheny, Pennsylvania
- 15257 - Mellon Bank, Pittsburgh, Allegheny, Pennsylvania
- 15258 - Mellon Bank, Pittsburgh, Allegheny, Pennsylvania
- 15259 - Mellon Bank, Pittsburgh, Allegheny, Pennsylvania
- 15286 - Mellon Bank, Pittsburgh, Allegheny, Pennsylvania
- 15278 - National City Bank, Pittsburgh, Allegheny, Pennsylvania
- 15231 - Pittsburgh Airport, Pittsburgh, Allegheny, Pennsylvania