Licence Plate Suffix Checker
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yeah. tat was during the bus forum days.Originally posted by finoq:actually I found out this cycle myself at first by noting all the TIB suffixes (SMRT buses), wrote them down on paper...and found out the order...I remember it starting with A...divide it into groups...
AYUS-PLJG-DBZX-TRMK-HEC
then thanks to some really old thread in the Bus forum by ^tamago^ i discovered this order was used for private vehicles, vans etc. as well.
Also after a last-digit 9 number the order skips one letter or something...but this does not apply to a difference in thousands (eg. 999 to 1000)
i dun like to use the skip order calculation method, unless it's a quick mental step.
9 -> 10: skip 1
99 -> 100: skip 8
999 -> 1000: 999 and 1000 have same suffix -
the suffix is derived like this:Originally posted by TwinTurbo_Supra:ohhh...
then the confusing letters?
1. 26 alphabets, remove 7 confusing letters i.e. F, I, N, O, Q, V, W.
2. reverse order i.e. ZYXUTSRPMLKJHGEDCBA
3. take alternate i.e. ZXTRMKHECAYUSPLJGDB -
these prefixes don't have suffixes:
ROV
STE
SEP
SJ, CJ
S/CC, S/CD
MID (technically have but don't care)
SAFPU
SPF
WTO/IOC/NDP (all not active/expired) -
i meant, how do u define confusing letters?Originally posted by ^tamago^:the suffix is derived like this:
1. 26 alphabets, remove 7 confusing letters i.e. F, I, N, O, Q, V, W.
2. reverse order i.e. ZYXUTSRPMLKJHGEDCBA
3. take alternate i.e. ZXTRMKHECAYUSPLJGDB
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orh. cos the alphabets look like numbers from far, like the letter 'I' looks like 1, and thus can be confusing.Originally posted by TwinTurbo_Supra:i meant, how do u define confusing letters? -
but S looks like 5.Originally posted by ^tamago^:orh. cos the alphabets look like numbers from far, like the letter 'I' looks like 1, and thus can be confusing.
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well, if you look at my nick you can already see 5
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good one, but then, this is sometimes done in an mutual mannerOriginally posted by TwinTurbo_Supra:but S looks like 5.
F was excluded due to similarities with E, but if u see something tat looks like F, it can only be E
I was excluded due to similarities with 1.
N was excluded due to similarities with M.
O was excluded due to similarities with 0.
Q was excluded due to similarities with 0.
V and W was excluded due to similarities with U. -
can post SE1X pic in here?
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oooo yahor.Originally posted by ^tamago^:good one, but then, this is sometimes done in an mutual manner
F was excluded due to similarities with E, but if u see something tat looks like F, it can only be E
I was excluded due to similarities with 1.
N was excluded due to similarities with M.
O was excluded due to similarities with 0.
Q was excluded due to similarities with 0.
V and W was excluded due to similarities with U. -
wah seh... with this right... people who want to buy license plates know how to customise liao! woot..
great job tamago ^^ -
i would never have figured dat out in a million years
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Originally posted by ^tamago^:"TRMKHECAYUSPLJGDBZX"
what is the reason for the cycle to start from T when the first alphabet in the alternate-reversed order is Z?
ZXTRMKHECAYUSPLJGDB
there u have the 19-letter key to the suffix cycle.
SBA1T
SBA2R -
T is the suffix for SBA1. only for SBA, the first alphabet is 'T'. for SBB, it's 'M' (skip 1, T -> (R) -> M).Originally posted by Xcert:what is the reason for the cycle to start from T when the first alphabet in the alternate-reversed order is Z? -
ok understood.Originally posted by ^tamago^:T is the suffix for SBA1. only for SBA, the first alphabet is 'T'. for SBB, it's 'M' (skip 1, T -> (R) -> M).
Is there a plate "E0Z" around?
I put in E0 and it came out with a Z.
I understand from ur logic how it came up with the Z but just wondering if E0Z is a valid plate or not.
1 more question...How does the program know whether the prefix is valid or not?I presume U hard-coded the valid prefixes in and let the algo run to find the corresponding suffix,if any? -
WOW! This even work on SBS buses.
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erm how did you put it on ur blog? can i put on mi blog also
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good one. i forgot to disable the '0' number. haha. it's definitely not valid.Originally posted by Xcert:ok understood.
Is there a plate "E0Z" around?
I put in E0 and it came out with a Z.
I understand from ur logic how it came up with the Z but just wondering if E0Z is a valid plate or not.
1 more question...How does the program know whether the prefix is valid or not?I presume U hard-coded the valid prefixes in and let the algo run to find the corresponding suffix,if any?
the prefix is generated from the LTA prefixes list. hard-coded. if u're doing a program, it's better if u know the valid prefixes cos it doesn't really follow a fixed sequence. for e.g, there is no SCB, but there is SDB. and all SxI, SxO etc are not valid. cos it's not fixed, it's best to define them individually.
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yup, PA, PB, PZ, TIB, CSS, CB also.Originally posted by SBS1985C:WOW! This even work on SBS buses.
the last time i checked, PC is slated as the successor to PB. now i dunno if it'll be omitted.... :S -
it would be better if it could tell what are all of the used numbers...
eg if i put SCM it will tell me all the registered number plates that have SCM -
https://www.psi.gov.sg/NASApp/tmf/TMFServlet?app=LTA-OSMC-ETF&isNew=trueOriginally posted by ceecookie:it would be better if it could tell what are all of the used numbers...
eg if i put SCM it will tell me all the registered number plates that have SCM
check here one by one. haha. but with the suffix known, it is easier.
service is unavailable every night from 12mn to 3am to update the records. -
where to find this prefix list?Originally posted by ^tamago^:the prefix is generated from the LTA prefixes list.
dun tell me must try one by one on the LTA site that U provided....takes a long time... 
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how did you putit on the blog?
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Originally posted by ^tamago^:
so SBA19T then SBA20M. then is the R skipped?
[b]3. take alternate i.e. ZXTRMKHECAYUSPLJGDB
there u have the 19-letter key to the suffix cycle.
SBA18X
SBA19T
SBA20M
b] -
yes. 9 to 10, skip 1.Originally posted by 105090:so SBA19T then SBA20M. then is the R skipped?