Postal sector LL55 4
- The Square, Caernarfon, LL55 4AA
- The Square, Caernarfon, LL55 4AB
- Llanrug, Caernarfon, LL55 4AD
- Caernarfon, LL55 4AE
- Lon Groes, Caernarfon, LL55 4AF
- Station Road, Caernarfon, LL55 4AG
- Nant Y Glyn, Caernarfon, LL55 4AH
- Caernarfon, LL55 4AJ
- Caernarfon, LL55 4AL
- Caernarfon, LL55 4AN
- Caernarfon, LL55 4AP
- Caernarfon, LL55 4AQ
- Caernarfon, LL55 4AR
- Arvonia Terrace, Caernarfon, LL55 4AS
- Caernarfon, LL55 4AT
- Bro Rhythallt, Caernarfon, LL55 4AU
- Caernarfon, LL55 4AW
- Caernarfon, LL55 4AX
- Caernarfon, LL55 4AY
- Caernarfon, LL55 4AZ
- Station Road, Caernarfon, LL55 4BA
- Caernarfon, LL55 4BD
- Station Road, Caernarfon, LL55 4BE
- Goodman Street, Caernarfon, LL55 4BF
- Rhos Rug, Caernarfon, LL55 4BG
- Caernarfon, LL55 4BH
- Caernarfon, LL55 4BJ
- Station Road, Caernarfon, LL55 4BL
- Station Road, Caernarfon, LL55 4BN
- Caernarfon, LL55 4BP
- Caernarfon, LL55 4BQ
- Caernarfon, LL55 4BS
- Tal Y Bont Estate, Caernarfon, LL55 4BT
- Hafan Elan Estate, Caernarfon, LL55 4BU
- Station Road, Caernarfon, LL55 4BW
- Caernarfon, LL55 4BX
- Gwel Y Dwr, Caernarfon, LL55 4BY
- Caernarfon, LL55 4BZ
- Caernarfon, LL55 4DA
- Dolafon, Caernarfon, LL55 4DB
- Caernarfon, LL55 4DD
- Caernarfon, LL55 4DE
- Caernarfon, LL55 4DF
- Tan Y Bryn, Caernarfon, LL55 4DG
- Caernarfon, LL55 4DH
- Eilian Terrace, Caernarfon, LL55 4DJ
- Caernarfon, LL55 4DL
- Bryn Crwn, Caernarfon, LL55 4DN
- Caernarfon, LL55 4DP
- Bro Waun, Caernarfon, LL55 4DQ
- Pool Street, Caernarfon, LL55 4DR
- Caernarfon, LL55 4DS
- Caernarfon, LL55 4DT
- Caernarfon, LL55 4DU
- Allt Goch, Caernarfon, LL55 4DW
- Caernarfon, LL55 4DX
- Caernarfon, LL55 4DY
- Caernarfon, LL55 4DZ
- Caernarfon, LL55 4EA
- Caernarfon, LL55 4EB
- Caernarfon, LL55 4ED
- Caernarfon, LL55 4EE
- Coed Y Ddol, Caernarfon, LL55 4EG
- Caernarfon, LL55 4EH
- Caernarfon, LL55 4EJ
- Caernarfon, LL55 4EL
- High Street, Caernarfon, LL55 4EN
- Water Street, Caernarfon, LL55 4EP
- Caernarfon, LL55 4EQ
- Charlotte Street, Caernarfon, LL55 4ER
- Turner Street, Caernarfon, LL55 4ES
- Henry Street, Caernarfon, LL55 4ET
- High Street, Caernarfon, LL55 4EU
- Well Street, Caernarfon, LL55 4EW
- Caernarfon, LL55 4EX
- Market Street, Caernarfon, LL55 4EY
- Caernarfon, LL55 4EZ
- Park Lane, Caernarfon, LL55 4FA
- Cae Ty Capel, Caernarfon, LL55 4FB
- Rhes Tan Marian, Caernarfon, LL55 4FD
- Trem Y Chwarel, Caernarfon, LL55 4FE
- Gwel Y Mynydd, Caernarfon, LL55 4GA
- High Street, Caernarfon, LL55 4HA
- High Street, Caernarfon, LL55 4HB
- Ty Du Road, Caernarfon, LL55 4HD
- Snowdon Street, Caernarfon, LL55 4HE
- Bryn Teg, Caernarfon, LL55 4HF
- Rallt Goch, Caernarfon, LL55 4HG
- Field Terrace, Caernarfon, LL55 4HH
- Caernarfon, LL55 4HJ
- Goodman Street, Caernarfon, LL55 4HL
- Newton Street, Caernarfon, LL55 4HN
- Warden Street, Caernarfon, LL55 4HP
- Caernarfon, LL55 4HQ
- Fron Deg Terrace, Caernarfon, LL55 4HR
- Olgra Terrace, Caernarfon, LL55 4HS
- Cambrian Terrace, Caernarfon, LL55 4HT
- Yankee Street, Caernarfon, LL55 4HU
- Thomas Street, Caernarfon, LL55 4HW
- Caernarfon, LL55 4HX
- Bryn Goleu, Caernarfon, LL55 4HY
- High Street, Caernarfon, LL55 4HZ
- Corlan Y Rhos, Caernarfon, LL55 4JA
- Rock Terrace, Caernarfon, LL55 4LA
- Rallt Goch, Caernarfon, LL55 4LB
- Bethesda Street, Caernarfon, LL55 4LD
- Fron Goch, Caernarfon, LL55 4LE
- Caernarfon, LL55 4LF
- Llainwen Isaf, Caernarfon, LL55 4LG
- Ty Du Road, Caernarfon, LL55 4LH
- Caernarfon, LL55 4LJ
- Llainwen Uchaf, Caernarfon, LL55 4LL
- Eilian Terrace, Caernarfon, LL55 4LN
- Caernarfon, LL55 4LQ
- Smith Street, Caernarfon, LL55 4LT
- Gwynant Street, Caernarfon, LL55 4LU
- Bryn Hyfryd, Caernarfon, LL55 4LW
- Bryn Golau, Caernarfon, LL55 4LX
- Gwynant Street, Caernarfon, LL55 4LY
- Pant Y Waun, Caernarfon, LL55 4LZ
- Sygun Terrace, Caernarfon, LL55 4NA
- Caernarfon, LL55 4NB
- Caernarfon, LL55 4ND
- Caernarfon, LL55 4NE
- Old Tanrhiw, Caernarfon, LL55 4NF
- Caernarfon, LL55 4NG
- Bryn Dinas, Caernarfon, LL55 4NH
- Adwy'r Nant, Caernarfon, LL55 4NJ
- Caernarfon, LL55 4NL
- Caernarfon, LL55 4NQ
- Nant Gwynant, Caernarfon, LL55 4NR
- Caernarfon, LL55 4NS
- Caernarfon, LL55 4NT
- Caernarfon, LL55 4NW
- Caernarfon, LL55 4NY
- Caernarfon, LL55 4PE
- Caernarfon, LL55 4PF
- Glan Moelyn, Caernarfon, LL55 4PG
- Caernarfon, LL55 4PH
- Stad Ty Hen, Caernarfon, LL55 4PJ
- Mountain View, Caernarfon, LL55 4PL
- Caernarfon, LL55 4PN
- Caernarfon, LL55 4PP
- Caernarfon, LL55 4PQ
- Glanffynnon, Caernarfon, LL55 4PR
- Glanffynnon, Caernarfon, LL55 4PS
- Caernarfon, LL55 4PT
- Minffordd, Caernarfon, LL55 4PU
- Caernarfon, LL55 4PW
- Coed Y Glyn, Caernarfon, LL55 4PX
- Caernarfon, LL55 4PY
- Trefeilian Estate, Caernarfon, LL55 4PZ
- Glan Moelyn, Caernarfon, LL55 4QA
- Caernarfon, LL55 4RA
- Caernarfon, LL55 4RB
- Caernarfon, LL55 4RD
- Caernarfon, LL55 4RE
- Caernarfon, LL55 4RF
- Caernarfon, LL55 4RG
- Caernarfon, LL55 4RH
- Pant Castell, Caernarfon, LL55 4RJ
- Caernarfon, LL55 4RL
- Caernarfon, LL55 4RN
- Caernarfon, LL55 4RP
- Caernarfon, LL55 4RR
- Trevor Terrace, Caernarfon, LL55 4RS
- Caernarfon, LL55 4RT
- Caernarfon, LL55 4RU
- Pant Y Coed, Caernarfon, LL55 4RW
- Caernarfon, LL55 4RY
- Caernarfon, LL55 4SA
- Caernarfon, LL55 4SB
- Caernarfon, LL55 4SD
- Afon Rhos Estate, Caernarfon, LL55 4SE
- Capel Coch Road, Caernarfon, LL55 4SH
- Minafon Terrace, Caernarfon, LL55 4SL
- Capel Coch Road, Caernarfon, LL55 4SN
- Ceunant Street, Caernarfon, LL55 4SP
- Caernarfon, LL55 4SR
- Llanberis, Caernarfon, LL55 4SS
- Caernarfon, LL55 4ST
- High Street, Caernarfon, LL55 4SU
- Rallt Goch (ceunant), Caernarfon, LL55 4SW
- Padarn Road, Caernarfon, LL55 4SY
- Gerddi Padarn, Caernarfon, LL55 4SZ
- Station Road, Caernarfon, LL55 4TA
- Maes Padarn, Caernarfon, LL55 4TD
- Maes Padarn, Caernarfon, LL55 4TE
- Church Road, Caernarfon, LL55 4TF
- Mur Mawr, Caernarfon, LL55 4TG
- Caernarfon, LL55 4TH
- Blaen Y Ddol, Caernarfon, LL55 4TL
- Dol Elidir, Caernarfon, LL55 4TN
- Caernarfon, LL55 4TP
- Vaynol Cottages, Caernarfon, LL55 4TR
- York Terrace, Caernarfon, LL55 4TS
- Victoria Terrace, Caernarfon, LL55 4TT
- Caernarfon, LL55 4TU
- Maes Derlwyn, Caernarfon, LL55 4TW
- Caernarfon, LL55 4TY
- Caernarfon, LL55 4UB
- Caernarfon, LL55 4UD
- Caernarfon, LL55 4UE
- Caernarfon, LL55 4UF
- Nant Ffynnon, Caernarfon, LL55 4UG
- Caernarfon, LL55 4UH
- Caernarfon, LL55 4UL
- Caernarfon, LL55 4UN
- Dol Eilian, Caernarfon, LL55 4UP
- Llanberis, Caernarfon, LL55 4UR
- Caernarfon, LL55 4UU
- Caernarfon, LL55 4UW
- Caernarfon Road, Caernarfon, LL55 4UY
- Caernarfon, LL55 4YA
- Caernarfon, LL55 4YB
- Caernarfon, LL55 4YD
- Caernarfon, LL55 4YE
- Caernarfon, LL55 4YF
- Caernarfon, LL55 4YG
- Caernarfon, LL55 4YH
- Cae Morys, Caernarfon, LL55 4YJ
- Caernarfon, LL55 4YL
- Caernarfon, LL55 4YN
- Croes Y Waun, Caernarfon, LL55 4YP
- Coed Gelert, Caernarfon, LL55 4YQ
- Caernarfon, LL55 4YR
- Caernarfon, LL55 4YS
- Bod Hyfryd Estate, Caernarfon, LL55 4YT
- Caernarfon, LL55 4YU
- Oberon Woods, Caernarfon, LL55 4YW
- Stad Glyn Afon, Caernarfon, LL55 4YX
- Caernarfon, LL55 4YY
- Llys Y Waun, Caernarfon, LL55 4ZA