Welcome to EvE
http://i.imgur.com/42YeJ4m.gif

W types:
Class 1 2 3 Unknown parts of space.
Class 4 5 Dangerous unknown parts of space.
Class 6 Deadly unknown parts of space.

EXIT REGION DESIGNATION CHEET SHEET:
https://i.imgur.com/NdLDTVL.jpg
https://wiki.eveuniversity.org/Visual_wormhole_identification


W-SPACE DESIGNATION
Class 1 H121 P060 Q317 V301 Y790 Z647 Z971 E004
Class 2 C125 D364 D382 G024 I182 N766 R943 L005
Class 3 C247 L477 M267 N968 O477 O883 X702 Z006
Class 4 E175 M609 O128 T405 X877 Y683 Z457 M001
Class 5 H296 H900 L614 M555 N062 N432 N770 V911 C008
Class 6 A982 B041 R474 S804 U319 U574 V753 W237 G008

K-SPACE DESIGNATION
High Sec A641 B274 B449 B520 D792 D845 N110 Q063 S047
Low Sec A239 C140 C391 J244 N290 N944 R051 U210 V898
Null Sec C248 E545 E587 K329 K346 Q003 S199 V283 Z060 Z142

SPEC-SPACE DESIGNATION
Class 12 F135 F353 F355 L031 M164 T458 Thera
Class 13 A009 Shattered Wormholes
Class 25 C729 F216 U372 Triglavian space
Drifter B735 C414 R259 S877 V928 Drifters Wormholes