Postal sector LL57 1
- Beach Road, Bangor, LL57 1AB
- Glandwr Road, Bangor, LL57 1AD
- Ger Y Mynydd, Bangor, LL57 1AG
- Glynne Road, Bangor, LL57 1AH
- St. Marys Avenue, Bangor, LL57 1AL
- Glynne Road, Bangor, LL57 1AN
- Ffordd Ceiriog, Bangor, LL57 1AP
- Penlon Gardens, Bangor, LL57 1AQ
- Ffordd Islwyn, Bangor, LL57 1AR
- Seiriol Road, Bangor, LL57 1AS
- Beach Road, Bangor, LL57 1AT
- Orme Road, Bangor, LL57 1AU
- Ffordd Tegid, Bangor, LL57 1AW
- High Street, Bangor, LL57 1AX
- Orme Road, Bangor, LL57 1AY
- High Street, Bangor, LL57 1AZ
- Orme Road, Bangor, LL57 1BA
- Friars Avenue, Bangor, LL57 1BB
- Seiriol Terrace, Bangor, LL57 1BD
- Friars Road, Bangor, LL57 1BE
- Mount Street, Bangor, LL57 1BF
- William Street, Bangor, LL57 1BG
- Ambrose Street, Bangor, LL57 1BH
- Glynne Road, Bangor, LL57 1BJ
- Ambrose Street, Bangor, LL57 1BL
- Fair View Road, Bangor, LL57 1BN
- Bro Seiri, Bangor, LL57 1BP
- Mount Street, Bangor, LL57 1BQ
- Ffordd Seion, Bangor, LL57 1BS
- Water Street, Bangor, LL57 1BT
- Beach Road, Bangor, LL57 1BU
- Osborne Terrace, Bangor, LL57 1BW
- Glynne Road, Bangor, LL57 1BX
- Llys Emrys, Bangor, LL57 1BY
- William Street, Bangor, LL57 1BZ
- Edmund Street, Bangor, LL57 1DA
- Fountain Street, Bangor, LL57 1DB
- Robert Street, Bangor, LL57 1DD
- Mason Street, Bangor, LL57 1DE
- Ambrose Street, Bangor, LL57 1DF
- Beach Road, Bangor, LL57 1DG
- Strand Street, Bangor, LL57 1DH
- Maes Isalaw, Bangor, LL57 1DL
- Garth Road, Bangor, LL57 1DN
- High Street, Bangor, LL57 1DQ
- Waterloo Street, Bangor, LL57 1DS
- Ffordd Gwynedd, Bangor, LL57 1DT
- Ambrose Street, Bangor, LL57 1DU
- Lon Pobty, Bangor, LL57 1DZ
- High Street, Bangor, LL57 1EA
- Llys Mathieson, Bangor, LL57 1EG
- Lon Tyddyn, Bangor, LL57 1EH
- Lon Pobty, Bangor, LL57 1EJ
- Lon Pobty, Bangor, LL57 1EQ
- Lon Pobty, Bangor, LL57 1EX
- Ffordd Y Ffynnon, Bangor, LL57 1HB
- Ashley Road, Bangor, LL57 1HD
- York Place, Bangor, LL57 1HE
- Caellepa, Bangor, LL57 1HF
- Caellepa, Bangor, LL57 1HG
- Caellepa, Bangor, LL57 1HH
- Caellepa, Bangor, LL57 1HJ
- Ebenezer Place, Bangor, LL57 1HL
- Lower Street, Bangor, LL57 1HN
- Glantraeth, Bangor, LL57 1HQ
- Lon Pobty, Bangor, LL57 1HR
- Tan Y Bryn Terrace, Bangor, LL57 1HS
- Bishops Mill Road, Bangor, LL57 1HT
- Lon Pobty, Bangor, LL57 1HU
- City View, Bangor, LL57 1HW
- Lon Pobty, Bangor, LL57 1HY
- Kyffin Square, Bangor, LL57 1LA
- St. Pauls Terrace, Bangor, LL57 1LB
- Sackville Road, Bangor, LL57 1LD
- Sackville Road, Bangor, LL57 1LE
- Minafon, Bangor, LL57 1LF
- Treflan, Bangor, LL57 1LG
- Glanrafon, Bangor, LL57 1LH
- Farrar Road, Bangor, LL57 1LJ
- Y Gorlan, Bangor, LL57 1LQ
- Penrhyn Avenue, Bangor, LL57 1LR
- Penrhyn Avenue, Bangor, LL57 1LS
- Penrhyn Avenue, Bangor, LL57 1LT
- Tan Y Coed, Bangor, LL57 1LU
- Llain Yr Eglwys, Bangor, LL57 1LW
- Penrhyn Avenue, Bangor, LL57 1LY
- Station Road, Bangor, LL57 1LZ
- Trem Y Garnedd, Bangor, LL57 1NA
- Queens Avenue, Bangor, LL57 1NB
- Min Y Ddol, Bangor, LL57 1ND
- Ffordd Elfed, Bangor, LL57 1NE
- Gwern Las, Bangor, LL57 1NF
- Queens Avenue, Bangor, LL57 1NG
- Queens Avenue, Bangor, LL57 1NH
- High Street, Bangor, LL57 1NL
- High Street, Bangor, LL57 1NP
- High Street, Bangor, LL57 1NR
- High Street, Bangor, LL57 1NS
- High Street, Bangor, LL57 1NT
- High Street, Bangor, LL57 1NU
- Deiniol Centre, Bangor, LL57 1NW
- High Street, Bangor, LL57 1NX
- High Street, Bangor, LL57 1NY
- High Street, Bangor, LL57 1NZ
- High Street, Bangor, LL57 1PA
- High Street, Bangor, LL57 1PB
- High Street, Bangor, LL57 1PD
- Coed Y Castell, Bangor, LL57 1PH
- Pen Y Bryn, Bangor, LL57 1PX
- Bangor, LL57 1PZ
- Castle Hill Terrace, Bangor, LL57 1RB
- Cathedral Close, Bangor, LL57 1RL
- High Street, Bangor, LL57 1RS
- High Street, Bangor, LL57 1RT
- High Street, Bangor, LL57 1RU
- High Street, Bangor, LL57 1RW
- Ffordd Tan Y Bryn, Bangor, LL57 1SD
- Llys Geraint, Bangor, LL57 1SE
- Llys Bedwyr, Bangor, LL57 1SF
- Llwyn Hudol, Bangor, LL57 1SG
- Llys Owain, Bangor, LL57 1SH
- Plas Y Gerddi, Bangor, LL57 1SJ
- Ffordd Tan Y Bryn, Bangor, LL57 1SL
- Llys Mabon, Bangor, LL57 1SN
- Llys Arthur, Bangor, LL57 1SP
- Llys Dyfrig, Bangor, LL57 1SR
- Tan Y Bryn, Bangor, LL57 1SS
- Ffordd Y Castell, Bangor, LL57 1SU
- Llys Arthur, Bangor, LL57 1SW
- Tan Y Mynydd, Bangor, LL57 1SY
- Kingsley Avenue, Bangor, LL57 1TA
- Kingsley Avenue, Bangor, LL57 1TB
- Ffordd Y Castell, Bangor, LL57 1TD
- Lon Y Felin, Bangor, LL57 1TE
- Ffordd Tegai, Bangor, LL57 1TF
- Min Y Coed, Bangor, LL57 1TG
- Greenwood Avenue, Bangor, LL57 1TH
- Llain Yr Ysgol, Bangor, LL57 1TJ
- Greenwood Avenue, Bangor, LL57 1TL
- Llys Cadwaladr, Bangor, LL57 1TN
- Ffordd Tan Y Bryn, Bangor, LL57 1TS
- Ffordd Tan Y Bryn, Bangor, LL57 1TT
- Plas Llwyd Terrace, Bangor, LL57 1UB
- High Street, Bangor, LL57 1UE
- High Street, Bangor, LL57 1UL
- Dean Street, Bangor, LL57 1UP
- Dean Street, Bangor, LL57 1UR
- Dean Street, Bangor, LL57 1US
- Dean Street, Bangor, LL57 1UT
- High Street, Bangor, LL57 1YA
- High Street, Bangor, LL57 1YB
- High Street, Bangor, LL57 1YE
- James Street, Bangor, LL57 1YG
- High Street, Bangor, LL57 1YH
- High Street, Bangor, LL57 1YJ
- Maes Y Dref, Bangor, LL57 1YL
- High Street, Bangor, LL57 1YQ
- High Street, Bangor, LL57 1YR
- High Street, Bangor, LL57 1YS
- High Street, Bangor, LL57 1YT
- Off Lower High Street, Bangor, LL57 1YX
- High Street, Bangor, LL57 1YY
- Bangor, LL57 1ZB