LPL Transponder changes from 7/3/13

[speedbird1960]

UK transponder code re-allocations effective 7th March 2013

NOTAM B0415/13 (Issued for EGTT EGPX) - THE UPDATED CENTRALISED CODE ASSIGNMENT AND MANAGEMENT SYSTEM
(CCAMS) HAS RESULTED IN THE UK RELINQUISHING USE OF THE 02XX SERIES
OF SSR CODES. FROM 7 MAR 13 AFFECTED UNITS WILL USE NEW
SSR CODE ALLOCATIONS. THE CHANGE WILL BE PUBLISHED IN THE UK AIP ON
02 MAY 13. NEW SSR CODE ALLOCATIONS ARE AS FOLLOWS.
TC STANSTED AND TC LUTON: 7402-7414
RAF LEUCHARS CONSPICUITY (CODE UNVALIDATED AND UNVERIFIED) : 7402
RAF LEUCHARS: 7403-7437
IRELAND DOMESTIC: 4320-4327, 4357, 4370-4377, 7402-7437
RNAS YEOVILTON: 4320-4327, 4357, 4370-4377, 7402-7437
ANGLIA RADAR: 4354-4376, 7410-7427
RAF SHAWBURY: 7402-7407, 7411-7437
RAF SHAWBURY CONSPICUITY (CODE UNVALIDATED AND UNVERIFIED): 7410
NORTH DENES CONSPICUITY (CODE UNVALIDATED AND UNVERIFIED): 4377
CRANFIELD AD IFR CONSPICUITY PURPOSES (CODE UNVALIDATED AND
UNVERIFIED): 7417
OIL SURVEY HELICOPTERS - FAROES/ICELAND GAP: 4360-4361
WESTLAND HELICOPTERS YEOVIL (CODE UNVALIDATED AND UNVERIFIED):
4354-4356, 4360-4367
RAF NORTHOLT: 4360-4367
LIVERPOOL AD CONSPICUITY (CODE UNVALIDATED AND UNVERIFIED): 4360
LIVERPOOL AD: 4361-4367
COVENTRY AD CONSPICUITY (CODE UNVALIDATED AND UNVERIFIED): 4360-4361
COVENTRY APPROACH: 4362-4367

Spotted this on Flightradar24's Forum, i don't understand what means but it will be of use to someone on here.

Mike

[mictheslik]

It's a change of 'squawk' code allocations for aircraft using the Liverpool zone. For example, at present, if a GA aircraft departs liverpool to leave the zone VFR it squawks 0260. As the 02XX series is being relinquished it has changed to 4360 instead

.mic

[speedbird1960]

Thanks for explaining that Mic, the squawk changes will keep you pilots busy as you travel around the country.

[Biggles]

As these codes refer to UK areas and airfields why the need to alter numbers with other numbers ?
Is this a "jobsworth" decision or does it have an important reason behind it ?