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          "name": "West Bromwich West"
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          "name": "Warley"
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          "name": "South Suffolk"
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          "name": "West Suffolk"
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          "name": "Makerfield"
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          "code": "E14001039",
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      "predecessor_name": "Wimbledon",
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          "name": "Mitcham and Morden"
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          "name": "Maidenhead"
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          "code": "E14001042",
          "name": "Windsor"
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      ]
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      "predecessor_name": "Wirral South",
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          "name": "Birkenhead"
        },
        {
          "code": "E14001043",
          "name": "Wirral South"
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          "code": "E14001044",
          "name": "Wirral West"
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      ]
    },
    {
      "predecessor": "E14000514",
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        {
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        {
          "code": "E14001010",
          "name": "Wallasey"
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        {
          "code": "E14001044",
          "name": "Wirral West"
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      ]
    },
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      "predecessor_name": "Witney",
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        {
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          "name": "Henley"
        },
        {
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          "name": "Oxford West and Abingdon"
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        {
          "code": "E14001046",
          "name": "Witney"
        }
      ]
    },
    {
      "predecessor": "E14000516",
      "predecessor_name": "Woking",
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        {
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          "name": "Woking"
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      "predecessor_name": "Wokingham",
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          "name": "Wokingham"
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      "predecessor": "E14000518",
      "predecessor_name": "Wolverhampton North East",
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        {
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          "name": "Wolverhampton North East"
        },
        {
          "code": "E14001051",
          "name": "Wolverhampton South West"
        }
      ]
    },
    {
      "predecessor": "E14000519",
      "predecessor_name": "Wolverhampton South East",
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        {
          "code": "E14001050",
          "name": "Wolverhampton South East"
        }
      ]
    },
    {
      "predecessor": "E14000520",
      "predecessor_name": "Wolverhampton South West",
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        {
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          "name": "Wolverhampton North East"
        },
        {
          "code": "E14001050",
          "name": "Wolverhampton South East"
        },
        {
          "code": "E14001051",
          "name": "Wolverhampton South West"
        }
      ]
    },
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      "predecessor_name": "Woodspring",
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        {
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          "name": "North Somerset"
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      ]
    },
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      "predecessor": "E14000522",
      "predecessor_name": "Worcester",
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        {
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          "name": "Worcester"
        }
      ]
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      "predecessor_name": "Workington",
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        {
          "code": "E14000647",
          "name": "Copeland"
        },
        {
          "code": "E14001053",
          "name": "Workington"
        }
      ]
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      "predecessor": "E14000524",
      "predecessor_name": "Worsley",
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          "name": "Bolton West"
        },
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          "code": "E14000785",
          "name": "Leigh"
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          "name": "Worsley and Eccles South"
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          "name": "East Worthing and Shoreham"
        },
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          "code": "E14001055",
          "name": "Worthing West"
        }
      ]
    },
    {
      "predecessor": "W07000008",
      "predecessor_name": "Wrexham",
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          "code": "W07000044",
          "name": "Wrexham"
        }
      ]
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      "predecessor": "E14000526",
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          "name": "Aylesbury"
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          "name": "Beaconsfield"
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          "code": "E14001056",
          "name": "Wycombe"
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      "predecessor": "E14000527",
      "predecessor_name": "Wyre Forest",
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      "predecessor": "E14000528",
      "predecessor_name": "Wythenshawe and Sale East",
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          "name": "Wythenshawe and Sale East"
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      ]
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      "predecessor": "E14000529",
      "predecessor_name": "Yeovil",
      "successors": [
        {
          "code": "E14000932",
          "name": "Somerton and Frome"
        },
        {
          "code": "E14001060",
          "name": "Yeovil"
        }
      ]
    },
    {
      "predecessor": "W07000001",
      "predecessor_name": "Ynys Mon",
      "successors": [
        {
          "code": "W07000041",
          "name": "Ynys Môn"
        }
      ]
    }
  ],
  "_meta": {
    "source": "Office for National Statistics, Code History Database",
    "source_url": "https://geoportal.statistics.gov.uk/",
    "dataset_version": "CHD-2026-06",
    "retrieved_at": "2026-09-07T07:14:12.834Z",
    "licence": "Open Government Licence v3.0",
    "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
    "attribution": "Source: Office for National Statistics licensed under the Open Government Licence v.3.0",
    "built_at": "2026-09-07T07:22:46.704Z"
  }
}