This site tells you the shard firsts for your character or guild.
Prime/Vigil support is not in yet, but will be added soon after Trion adds it to the data dumps.
Data is checked for from Trion daily. The latest is dated *unknown*. All information is straight from Trion's public assets.
Enter a player name and/or a guild name, then press Submit.
See other RIFT tools here.