Long time back in the original alpha I did a extensive dungeon ID listing with xyz coordinates to the entrance. Having just gotten a private server to work for myself I've been rather busy. These here are the base dungeon id's. Bad ones that I've marked you shouldn't try or it will crash your client and make your character irretrievable. I will post more detailed coordinates after I get some sleep, sharing this now so people can get exploring!
EDIT: Any ID's above the ones I have listed at the moment are invalid as far as I can tell. Went up to 700 for scanning.
EDIT 2: Meh sleep.
EDIT 3: Finished finding things as best I can, most of what I canât find is likely due to it not being developed/implemented yet.
EDIT 4: Added in a format to clear things up and tagged some names from the map.dbc file.
FORMAT: <X> <Y> <Z> <Zone ID>
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
571 - Good - Northrend
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Howling Fjord - Valgarde - Alliance
.go 590 -5095 6 571
Howling Fjord - Vengeance Landing - Horde
.go 1983 -6220 8 571
Borean Tundra - Valliance Keep - Alliance
.go 2210 5274 11 571
Borean Tundra - Warsong Hold - Horde
.go 2469 6212 174 571
Maw of Neltharion
.go 4381 1552 135 571
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
572 - Good - Lorderon Arena
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Lorderon Arena - Center
.go 1285 1667 40 572
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
573 - Good - Exterior Test Zone
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Island 1 - Center
.go 35 67 0 573
Island 2 - Center
.go 1769 836 0 573
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
574 - Good - Utgarde Keep (Valgarde 70)
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Zone-In Entrance
.go 157 -84 13 574
Dungeon Entrance - World Map
.go 1223 -4866 42 571
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
575 - Good - Utgarde Pinnacle
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Zone-In Entrance
.go 585 -327 111 575
Dungeon Entrance - World Map
.go 1239 -4859 219 571
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
576 - Good - The Nexus (Nexus 70)
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Zone-In Entrance
.go 144 -6 -16 576
Dungeon Entrance - World Map
.go 3895 6985 70 571
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
577 - Invalid - Invalid
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
578 - Good - The Oculus (Nexus 80)
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Bottom Platform - Zone in Entrance Unknown
.go 953 1057 360 578
Possible Dungeon Entrance - World Map - Entrance Unknown
.go 3869 6984 153 571
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
579 - Invalid - Invalid
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
580 - Good - The Sunwell Plateau
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Zone-In Entrance
.go 1792 925 16 580
Dungeon Entrance - World Map
.go 12558 -6774 16 530
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
581 - Invalid - Invalid
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
582 - Bad - Transport176244
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
583 - Invalid - Invalid
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
584 - Bad - Transport176231
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
585 - Good - Magisters Terrace - Fix
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Zone-In Entrance
.go 0 0 0 585
Dungeon Entrance - World Map
.go 12886 -7333 66 530
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
586 - Bad - Transport181645
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
587 - Bad - Transport177233
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
588 - Bad - Transport176310
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
589 - Bad - Transport175080
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
590 - Bad - Transport176495
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
591 - Bad - Transport164871
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
592 - Bad - Transport186238
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
593 - Bad - Transport20808
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
594 - Bad - Transport187038
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
595 - Good - Stratholme - Past
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Zone-In Entrance
.go 1435 546 35 595
Dungeon Entrance - World Map
.go -8755 -4451 -198 1
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
596 - Bad - Transport187263
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
597 - Good - Craig test
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
598 - Good - Magisters Terrace
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Zone-In Entrance
.go 0 0 0 598
Dungeon Entrance - World Map
.go 12886 -7333 66 530
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
599 - Good - Halls of Stone (Uldar 70)
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Zone-In Entrance
.go 1152 803 196 599
Dungeon Entrance - World Map
UKNOWN
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
600 - Good - Drak'Tharon Keep
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Zone-In Entrance
.go -512 -505 12 600
Dungeon Entrance - World Map
.go 4775 -2029 230 571
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
601 - Good - Azjol-Nerub - Upper City
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
No Zone in portal yet - Possible Entrance
.go 551 254 224 601
Dungeon Entrance - World Map
UKNOWN
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
602 - Good - Halls of Lightning (Ulduar 80)
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Zone-In Entrance
.go 1340 264 53 602
Possible Dungeon Entrance - World Map
.go 3435 263 -119 571
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
603 - Good - Uldar (Ulduar Raid)
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Zone-In Entrance
.go 1621 309 89 603
Dungeon Entrance - World Map
UKNOWN
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
604 - Good - Gun'Drak - Untextured
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Zone-In Entrance - Unknown
.go 1665 807 199 604
Dungeon Entrance - World Map
UKNOWN
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
605 - Good - Development Land (non-weighted textures)
Land mass not found.
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
606 - Good - QA DVD
Land mass not found.
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
607 - Good - Northrend BG
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Zone-In Entrance - Unknown
.go 1601 81 8 607
Dungeon Entrance - World Map
UKNOWN
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=