To prevent the issue where you cant debug a listing on a Tycho feed because the MLS number prefix isn't visible. Below is a list of all known prefixes for WebAPI feeds.
How do you know if it's a WebAPI feed? The MLS number is 4 digits long, and it begins with 5.
| Board Name | Board Number | Prefix |
| MARIS | 5006 | MAR |
| INMIBOR | 5012 | MBR |
| NIRA | 5015 | NRA |
| StellarMLS | 5023 | MFR |
| NC Canopy | 5034 | CAR |
| WANWMLS | 5040 | NWM |
| HMLS Heartland | 5054 | HMS |
| ILMRED | 5057 | MRD |
| Northstar MLS | 5062 | NST |
| RealTracs | 5081 | RTC |
| ReColorado | 5105 | REC |
| OneKey | 5911 | KEY |
| Southern Missouri | 5117 | SOM |
| Spokane | 5152 | SAR |
| Prescott | 5230 | PAR |
| Flint Hills | 5240 | FHR |
| RANW | 5267 |
RAN |
| REBNY | 5268 |
PDES- |
| Prairie Land Realtors | 5295 |
PRA |
| Highland Lakes Association Of Realtors | 5312 |
HLM |
| Pike Wayne | 5351 |
PWB |
| RMLS Alliance | 5394 | RMA |
| Greater Scranton | 5410 | GSB |
| Southern New Mexico MLS | 5408 | LCN |
| Sunflower | 5429 | SUN |
| Lawrence MLS | 5524 | LBR |
| Northeast Iowa | 5533 | NBR |
| Austin | 5831 | ACT |
To debug a listing, simply add the prefix to the MLS number given without any spaces or dashes in front. If you still can't find the listing, reach out in #boards_support in Slack.
Active API Boards without a known prefix:
5008
5020
5027
5048
5053
5055
5082
5086
5099
5144
5159
5196
5225
5227
5307
5322
5341
5392
5395
5555
5666
5667
5668
5669
5672