Postcode,In Use?,Latitude,Longitude,Easting,Northing,Grid Ref,Introduced,Terminated,Parish,Altitude,Country,Last Updated,Quality,LSOA Code,LSOA Name,LSOA Code 2021,LSOA Name 2021 SG16 6GU,Yes,52.000472,-0.298733,516888,234925,TL168349,2021-03-01,,Ickleford,48,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG16 6GW,Yes,52.001343,-0.296806,517018,235025,TL170350,2021-11-01,,Ickleford,47,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG16 6GX,Yes,52.000271,-0.296687,517029,234906,TL170349,2021-08-01,,Ickleford,49,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG16 6GY,Yes,52.000114,-0.297610,516966,234887,TL169348,2021-03-01,,Ickleford,49,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3AW,Yes,51.973419,-0.276099,518513,231953,TL185319,2010-10-01,,Ickleford,52,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3DW,Yes,51.970151,-0.280767,518201,231582,TL182315,2019-06-01,,Ickleford,56,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3FH,Yes,51.969051,-0.278713,518345,231463,TL183314,1997-12-01,,Ickleford,54,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3FN,Yes,51.985169,-0.298191,516965,233224,TL169332,2021-03-01,,Holwell,60,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3FX,Yes,51.965557,-0.288221,517701,231059,TL177310,2024-09-01,,Ickleford,60,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3RN,Yes,51.966641,-0.288588,517673,231179,TL176311,1980-01-01,,Ickleford,64,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3RP,Yes,51.963258,-0.296475,517140,230790,TL171307,1980-01-01,,Ickleford,62,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3RR,Yes,51.970825,-0.287540,517734,231646,TL177316,1980-01-01,,Ickleford,62,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3RS,Yes,51.979717,-0.289952,517545,232631,TL175326,1980-01-01,,Ickleford,59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3RT,Yes,51.978782,-0.291211,517461,232525,TL174325,1980-01-01,,Holwell,59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3RU,Yes,51.990179,-0.284092,517920,233804,TL179338,1980-01-01,,Ickleford,52,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3RW,No,51.971326,-0.287986,517702,231701,TL177317,1980-01-01,1986-12-01,Ickleford,61,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3RX,Yes,51.994030,-0.294753,517178,234215,TL171342,1980-01-01,,Holwell,50,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3SA,No,51.999291,-0.294204,517202,234801,TL172348,1980-01-01,1991-12-01,Ickleford,49,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3SB,Yes,52.000089,-0.295266,517127,234888,TL171348,1980-01-01,,Ickleford,48,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3SG,Yes,51.985810,-0.297788,516991,233296,TL169332,1980-01-01,,Holwell,60,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3SH,Yes,51.984802,-0.299574,516871,233181,TL168331,1980-01-01,,Holwell,61,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3SJ,Yes,51.985967,-0.303637,516589,233304,TL165333,2012-12-01,,Holwell,62,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3SL,Yes,51.985885,-0.301062,516766,233299,TL167332,1980-01-01,,Holwell,62,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3SN,Yes,51.986929,-0.304256,516544,233410,TL165334,1980-01-01,,Holwell,59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3SP,Yes,51.984949,-0.304797,516512,233189,TL165331,1980-01-01,,Holwell,63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3SQ,Yes,51.986445,-0.301886,516708,233360,TL167333,1980-01-01,,Holwell,62,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3SR,Yes,51.985748,-0.305291,516476,233277,TL164332,1980-01-01,,Holwell,61,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3SS,Yes,51.983152,-0.305461,516471,232988,TL164329,1980-01-01,,Holwell,64,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3ST,Yes,51.981457,-0.309515,516197,232793,TL161327,1980-01-01,,Holwell,57,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3SU,Yes,51.981857,-0.310505,516128,232836,TL161328,1980-01-01,,Holwell,55,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3SW,Yes,51.985588,-0.304190,516552,233261,TL165332,1991-01-01,,Holwell,63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3SZ,Yes,51.986349,-0.303302,516611,233347,TL166333,1980-01-01,,Holwell,62,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TD,Yes,51.971533,-0.276856,518466,231742,TL184317,1980-01-01,,Ickleford,53,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TE,Yes,51.971147,-0.277526,518421,231698,TL184316,1980-01-01,,Ickleford,52,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TG,Yes,51.972498,-0.277678,518407,231848,TL184318,1980-01-01,,Ickleford,53,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TH,Yes,51.974574,-0.276404,518489,232081,TL184320,1980-01-01,,Ickleford,52,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TJ,Yes,51.976627,-0.275990,518512,232310,TL185323,1980-01-01,,Ickleford,51,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TL,Yes,51.976792,-0.275547,518542,232329,TL185323,1980-01-01,,Ickleford,50,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TN,Yes,51.977399,-0.276514,518474,232395,TL184323,1980-01-01,,Ickleford,50,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TP,Yes,51.977802,-0.277590,518399,232438,TL183324,1980-01-01,,Ickleford,50,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TQ,Yes,51.972146,-0.276992,518455,231810,TL184318,1980-01-01,,Ickleford,52,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TR,Yes,51.978529,-0.278159,518358,232518,TL183325,1980-01-01,,Ickleford,50,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TS,Yes,51.977900,-0.281227,518149,232443,TL181324,1980-01-01,,Ickleford,51,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TT,Yes,51.978347,-0.276172,518495,232501,TL184325,1980-01-01,,Ickleford,50,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TU,Yes,51.980450,-0.276105,518494,232735,TL184327,1980-01-01,,Ickleford,47,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TW,Yes,51.978251,-0.273904,518651,232494,TL186324,1980-01-01,,Ickleford,49,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TX,No,51.982861,-0.277352,518402,233001,TL184330,1980-01-01,1998-06-01,Ickleford,50,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3TZ,Yes,51.976889,-0.271787,518800,232346,TL187323,1980-01-01,,Ickleford,51,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3UA,Yes,51.976360,-0.270642,518880,232289,TL188322,1980-01-01,,Ickleford,51,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3UB,Yes,51.974244,-0.275368,518561,232046,TL185320,1980-01-01,,Ickleford,51,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3UD,Yes,51.972853,-0.276164,518510,231890,TL185318,1980-01-01,,Ickleford,52,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3UE,Yes,51.973113,-0.276737,518470,231918,TL184319,1980-01-01,,Ickleford,52,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3UF,Yes,51.973212,-0.277941,518387,231927,TL183319,1980-01-01,,Ickleford,53,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3UG,No,51.970300,-0.279291,518302,231601,TL183316,1991-01-01,1992-12-01,Ickleford,54,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3UH,No,51.967626,-0.280849,518202,231301,TL182313,1993-08-01,1995-12-01,Ickleford,56,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3UN,Yes,51.968330,-0.279861,518268,231381,TL182313,1980-01-01,,Ickleford,55,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3UP,Yes,51.968470,-0.278357,518371,231399,TL183313,1980-01-01,,Ickleford,54,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3UR,Yes,51.968973,-0.280128,518248,231452,TL182314,1980-01-01,,Ickleford,56,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3UT,Yes,51.969304,-0.280057,518252,231489,TL182314,1980-01-01,,Ickleford,56,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3UU,Yes,51.969792,-0.279601,518282,231544,TL182315,1980-01-01,,Ickleford,55,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3UX,Yes,51.970089,-0.280201,518240,231576,TL182315,1980-01-01,,Ickleford,55,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3UZ,Yes,51.969366,-0.280550,518218,231495,TL182314,1980-01-01,,Ickleford,58,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XA,Yes,51.969775,-0.280854,518196,231540,TL181315,1980-01-01,,Ickleford,57,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XB,Yes,51.969080,-0.282555,518081,231460,TL180314,1980-01-01,,Ickleford,59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XD,Yes,51.967336,-0.285621,517875,231261,TL178312,1980-01-01,,Ickleford,62,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XE,Yes,51.967144,-0.285468,517886,231240,TL178312,1980-01-01,,Ickleford,62,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XF,No,51.965913,-0.286738,517802,231101,TL178311,1982-03-01,1990-12-01,Ickleford,63,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XG,Yes,51.965183,-0.286023,517853,231021,TL178310,1980-01-01,,Ickleford,61,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XH,Yes,51.968400,-0.287734,517727,231376,TL177313,1980-01-01,,Ickleford,62,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XJ,Yes,51.967896,-0.288292,517690,231319,TL176313,1980-01-01,,Ickleford,63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XL,Yes,51.967440,-0.289110,517635,231267,TL176312,1980-01-01,,Ickleford,63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XN,Yes,51.968321,-0.289717,517591,231364,TL175313,1980-01-01,,Ickleford,63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XP,Yes,51.968013,-0.285245,517899,231337,TL178313,1980-01-01,,Ickleford,62,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XR,Yes,51.969499,-0.284169,517969,231504,TL179315,1980-01-01,,Ickleford,60,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XS,Yes,51.969279,-0.285706,517864,231477,TL178314,1980-01-01,,Ickleford,61,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XT,Yes,51.970134,-0.281452,518154,231579,TL181315,1980-01-01,,Ickleford,57,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XU,Yes,51.970029,-0.282897,518055,231565,TL180315,1980-01-01,,Ickleford,58,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XW,Yes,51.969937,-0.283963,517982,231553,TL179315,1990-07-01,,Ickleford,59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XX,Yes,51.971146,-0.282403,518086,231690,TL180316,1980-01-01,,Ickleford,57,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XY,Yes,51.971121,-0.283758,517993,231685,TL179316,1980-01-01,,Ickleford,59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3XZ,Yes,51.971896,-0.282665,518066,231773,TL180317,1980-01-01,,Ickleford,57,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3YA,Yes,51.971985,-0.281978,518113,231784,TL181317,1980-01-01,,Ickleford,55,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3YB,Yes,51.970970,-0.281434,518153,231672,TL181316,1980-01-01,,Ickleford,56,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3YD,Yes,51.971301,-0.280053,518247,231711,TL182317,1980-01-01,,Ickleford,55,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3YE,Yes,51.972217,-0.280003,518248,231813,TL182318,1980-01-01,,Ickleford,54,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3YF,Yes,51.971738,-0.279803,518263,231760,TL182317,1980-01-01,,Ickleford,54,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3YG,Yes,51.971622,-0.279313,518297,231748,TL182317,1980-01-01,,Ickleford,54,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3YH,Yes,51.971155,-0.280554,518213,231694,TL182316,1980-01-01,,Ickleford,56,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3YJ,Yes,51.970632,-0.280472,518220,231636,TL182316,1980-01-01,,Ickleford,56,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3YL,Yes,51.966974,-0.286100,517843,231220,TL178312,2019-03-01,,Ickleford,62,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A SG5 3YQ,No,51.971199,-0.279256,518302,231701,TL183317,1980-01-01,1990-12-01,Ickleford,54,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023594,North Hertfordshire 014A,E01023594,North Hertfordshire 014A