Cost of directory enquiries

OK, nothing to do with writing but...I didn't realise the difference in cost for calling the different directory enquiries from mobiles.

Meteor Bill Pay
Number First/subsequent minute
National Directory Enquiries (11811)* €1.30/ 75c
National Directory Enquiries (11850)* €1.30/ 75c
National Directory Enquiries (11890)* 90c/ 75c
National Directory Enquiries (11888)* 90c/ 75c

* A minimum of one minute will be charged, after which, per second billing will apply.

Vodaphone bill pay
Costs for Vodafone 11850, 11811, and 11890 are the same:

Minimum charge covering the first minute: 79c
Charge for subsequent minutes: 79c

O2 pay monthly

Number Initial /Subsequent per minute charge*
Eircom National 11811 €0.75/ €0.75
Conduit National 11850 €0.75/ €0.75
Numbers Direct 11890 €0.50/ €0.50

Landlines
Conduit 11850 Minimum Charge 89.00 cent
Eircom 11811 Minimum Charge 84.51 cent (first 30 seconds)
Numbers Direct 11890 Minimum Charge 71.00 cent

11811 Eircom limits you to 3 numbers per call.
All 3 text you the number if you call from a mobile.

11890 is the overall winner at current prices.