- A4080 between A4080 merge and A4080 split, Isle of Anglesey (Grid ref SH320730)
- A4080 between A4080 merge and A4080 split Llanfaelog, Isle of Anglesey (Grid ref SH335727)
- A4080 between A55 and B5112, Isle of Anglesey (Grid ref SH365769)
- A4080 between A4080 split and B4422, Isle of Anglesey (Grid ref SH350700)
- A4080 between B4422 and A5, Isle of Anglesey (Grid ref SH400692)
- A4080 between A4080 split and A55, Isle of Anglesey (Grid ref SH355743)
- A5 between A4080 and A5114, Isle of Anglesey (Grid ref SH400760)
- A5 between A55 and B5420 roundabout Menai Bridge (Porthaethwy), Isle of Anglesey (Grid ref SH550720)
- A5 between A5025 and A55, Isle of Anglesey (Grid ref SH300789)
- A5 between A5114 and A55, Isle of Anglesey (Grid ref SH500720)
- A5 between HOLYHEAD and A5025, Isle of Anglesey (Grid ref SH282800)
- A5 between B5420 roundabout and A545 roundabout, Isle of Anglesey (Grid ref SH554720)
- A5 between A4080 and Isle of Anglesey boundary, Isle of Anglesey (Grid ref SH540712)
- A5 between A545 and Isle of Anglesey boundary, Isle of Anglesey (Grid ref SH555715)
- A5 between A4080 and A55, Isle of Anglesey (Grid ref SH535714)
- A5 between A55 and A4080, Isle of Anglesey (Grid ref SH355774)
- A5 between A55 and A55, Isle of Anglesey (Grid ref SH317784)
- A5 between A4080 and A55, Isle of Anglesey (Grid ref SH525716)
- A5 between A5025/B4545 and aluminium work entrance, Isle of Anglesey (Grid ref SH281800)
- A5 between A5152 and A55, Isle of Anglesey (Grid ref SH500720)
- A5 between A5152 and A55, Isle of Anglesey (Grid ref SH485719)
- A5 between A4080 and A5114, Isle of Anglesey (Grid ref SH400760)
- A5 between A5025 and A55, Isle of Anglesey (Grid ref SH300789)
- A5 between aluminium works entrance and A5154/A55, Isle of Anglesey (Grid ref SH253817)
- A5 between A55 and B5420 roundabout Menai Bridge (Porthaethwy), Isle of Anglesey (Grid ref SH550720)
- A5 between B5420 roundabout and A545 roundabout, Isle of Anglesey (Grid ref SH554720)
- A5 between A545 and Isle of Anglesey boundary, Isle of Anglesey (Grid ref SH555715)
- A5 between A5/A5153 junction and A55/London Road junction near Black Bridge, Isle of Anglesey (Grid ref SH251817)
- A5 between Junction between A5025/A5 and A5/A5153 junction, Isle of Anglesey (Grid ref SH271808)
- A5025 between B5109E and B5108, Isle of Anglesey (Grid ref SH518800)
- A5025 between A5108 and B5111, Isle of Anglesey (Grid ref SH500850)
- A5025 between A55 and B5109E, Isle of Anglesey (Grid ref SH550733)
- A5025 between B5108 and A5108, Isle of Anglesey (Grid ref SH507850)
- A5025 between B5111 Stryd Mona (Mona St) and High St, Cemaes, Isle of Anglesey (Grid ref SH400936)
- A5025 between A5/B4545 and High St, Cemaes, Isle of Anglesey (Grid ref SH304800)
- A5108 between A5025 and end of A-road, Moelfre, Isle of Anglesey (Grid ref SH510860)
- A5114 between A55 and B5109 Maes Bulkeley (Bulkeley Square) Llangefni, Isle of Anglesey (Grid ref SH457750)
- A5152 between A5 and A55, Isle of Anglesey (Grid ref SH491721)
- A5153 between A55/A5153 junction and A5/A5153 junction, Isle of Anglesey (Grid ref SH253813)
- A5154 between A55 and Prince of Wales Rd, Isle of Anglesey (Grid ref SH246824)
- A545 between A5 and B5420 Cil-Bedlam (Dale St), Isle of Anglesey (Grid ref SH557720)
- A545 between Lon Bryn Teg and B5109, Isle of Anglesey (Grid ref SH600756)
- A545 between B5420 Cil-Bedlam (Dale St) and Lon Bryn Teg, Isle of Anglesey (Grid ref SH559725)
- A55 between A5025 and A4080, Isle of Anglesey (Grid ref SH539717)
- A55 between A5 and A5025, Isle of Anglesey (Grid ref SH530723)
- A55 between A5 and A5152, Isle of Anglesey (Grid ref SH510719)
- A55 between A5152 and A5/A5114, Isle of Anglesey (Grid ref SH475725)
- A55 between A5/A5114 and A4080, Isle of Anglesey (Grid ref SH415743)
- A55 between A4080 and A5, Isle of Anglesey (Grid ref SH345772)
- A55 between A5 and A5, Isle of Anglesey (Grid ref SH310789)
- A55 between A5 and B4545 Kingsland Rd, Isle of Anglesey (Grid ref SH286791)
- A55 between B4545 Kingsland Rd and A5154, Isle of Anglesey (Grid ref SH247819)
- A55 between A5/A55 junction near pen-caledog and A55/A5153 junction, Isle of Anglesey (Grid ref TQ139647)
- A55 between A55/A5153 junction and Roundabout with A55/A5154, Isle of Anglesey (Grid ref SH249816)
- B5109, Stryd yr Eglwys, Isle of Anglesey (Grid ref SH337804)
- B5109, Ffordd Talwrn, Isle of Anglesey (Grid ref SH514785)
- B5110, Isle of Anglesey (Grid ref SH492823)
- B5112, No name, Isle of Anglesey (Grid ref SH372777)
- B5420, 1.5km NW of Penmynydd, near Llangefni, Isle of Anglesey (Grid ref SH494748)
- C, Near Tyddn-y-pandy, Isle of Anglesey (Grid ref SH392895)
- C, No name, Isle of Anglesey (Grid ref SH436697)
- C, Near Penrhosfeilw, Isle of Anglesey (Grid ref SH230803)
- U, Chwaen-wen, near Bodedern, Isle of Anglesey (Grid ref SH362827)
- U, Lon Goch, Isle of Anglesey (Grid ref SH445929)
- U, N/a, Isle of Anglesey (Grid ref SH621800)
- U, No name, Isle of Anglesey (Grid ref SH508744)
- U, Adam's Close, Isle of Anglesey (Grid ref SH320731)
- U, Llaneilian, Isle of Anglesey (Grid ref SH472879)