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HY as an abbreviation

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EastCoastway

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I've seen SW for the SW or South Western Franchise but some things use HY. What does HY stand for?
 
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Dr Hoo

Dr Hoo

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Some internal railway ‘operating’ systems such as the performance regimes use H-codes (followed by two digits in a **## format) for service groups. South Western has always been HY. Other types of operator such as freight, open access, metro/LUL and charters have series with other letters than H.
 
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hwl

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It is from the "Business Code" field for various electronic systems, the full list:

Company Name Business Code
Alliance Rail ZB
Amey Fleet Services RE
Balfour Beatty Rail RZ
c2c HT
Caledonian Sleeper ES
Carillion Rail RB
Carillion Rail CTRL (Phase 1) (defunct) RQ
Chiltern Railway HO
Colas Rail RG
CrossCountry EH
DB Cargo Charters WA
DB Cargo Freight WA
DB Cargo International DA
DC Rail PO
Direct Rail Services XH
East Midlands Trains EM
Europorte Channel PT
Eurostar GA
Ffestiniog Railway XJ
Freight Europe (defunct) PN
Freightliner DB
Freightliner Heavy Haul DH
GB Railfreight PE
Govia Thameslink Railway (Great Northern) ET
Govia Thameslink Railway (Thameslink) ET
Grand Central EC
Great North Western Railway LN
Great Western Railway EF
Greater Anglia EB
Harsco RT
Heathrow Connect EE
Heathrow Express HM
Hull Trains PF
Internal Testing RM
Island Lines HZ
JSD Rail Research & Development RR
Legge Infrastructure Services LG
Locomotive Services LS
London North Eastern Railway HB
London Overground EK
LORAM LC
LUL Bakerloo Line XC
LUL District Line – Richmond XE
LUL District Line – Wimbledon XB
Merseyrail HE
Network Rail (Internal use only) QA
Network Rail (On-Track Machines) LR
Network Rail Reserved Pathings (non-QJ) NR
Network Rail Virtual Freight Company QJ
Nexus (Tyne & Wear Metro) PG
North Yorkshire Moors Railway PR
Northern ED
On Route Logistics PM
Pre Metro Operations PK
Rail Operations Group PH
SB (Swietelsky Babcock) Rail RD
ScotRail HA
Seco Rail (defunct) RU
Serco Rail Operations SD
SNCF Freight Services PS
South Western Railway HY
South Yorkshire Supertram SJ
Southeastern HU
Southern HW
Swanage Railway SP
TfL Rail EX
TransPennine Express EA
Transport for Wales HL
Vintage Trains TY
Virgin Trains HF
VolkerRail RH
West Coast Railways PA
West Midlands Trains EJ
Wrexham and Shropshire (defunct) EI
 
pdeaves

pdeaves

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hwl said:
It is from the "Business Code" field for various electronic systems, the full list:

Company Name Business Code
Alliance Rail ZB
Amey Fleet Services RE
Balfour Beatty Rail RZ
...
etc.
Click to expand...
Lots of historical and non-operator codes also here http://www.railwaycodes.org.uk/misc/business.shtm

For passenger operators, the code is attached to a pair of digits to define individual service groups. List available here http://www.railwaycodes.org.uk/operators/servicegroups.shtm (open out the expanding lists to see the detail).
 
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theironroad

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hwl said:
It is from the "Business Code" field for various electronic systems, the full list:

Company Name Business Code
Alliance Rail ZB
Amey Fleet Services RE
Balfour Beatty Rail RZ
c2c HT
Caledonian Sleeper ES
Carillion Rail RB
Carillion Rail CTRL (Phase 1) (defunct) RQ
Chiltern Railway HO
Colas Rail RG
CrossCountry EH
DB Cargo Charters WA
DB Cargo Freight WA
DB Cargo International DA
DC Rail PO
Direct Rail Services XH
East Midlands Trains EM
Europorte Channel PT
Eurostar GA
Ffestiniog Railway XJ
Freight Europe (defunct) PN
Freightliner DB
Freightliner Heavy Haul DH
GB Railfreight PE
Govia Thameslink Railway (Great Northern) ET
Govia Thameslink Railway (Thameslink) ET
Grand Central EC
Great North Western Railway LN
Great Western Railway EF
Greater Anglia EB
Harsco RT
Heathrow Connect EE
Heathrow Express HM
Hull Trains PF
Internal Testing RM
Island Lines HZ
JSD Rail Research & Development RR
Legge Infrastructure Services LG
Locomotive Services LS
London North Eastern Railway HB
London Overground EK
LORAM LC
LUL Bakerloo Line XC
LUL District Line – Richmond XE
LUL District Line – Wimbledon XB
Merseyrail HE
Network Rail (Internal use only) QA
Network Rail (On-Track Machines) LR
Network Rail Reserved Pathings (non-QJ) NR
Network Rail Virtual Freight Company QJ
Nexus (Tyne & Wear Metro) PG
North Yorkshire Moors Railway PR
Northern ED
On Route Logistics PM
Pre Metro Operations PK
Rail Operations Group PH
SB (Swietelsky Babcock) Rail RD
ScotRail HA
Seco Rail (defunct) RU
Serco Rail Operations SD
SNCF Freight Services PS
South Western Railway HY
South Yorkshire Supertram SJ
Southeastern HU
Southern HW
Swanage Railway SP
TfL Rail EX
TransPennine Express EA
Transport for Wales HL
Vintage Trains TY
Virgin Trains HF
VolkerRail RH
West Coast Railways PA
West Midlands Trains EJ
Wrexham and Shropshire (defunct) EI
Click to expand...

Interesting. Explains why my payslip has had HY in front of my pay number for the last 20 odd years....
 
CC 72100

CC 72100

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And Bugle codes, for those who have such delight, will also notice the business code in the middle of the 4 letter code.
 
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