BGS2005 - CCS2005 - EPSG:7801

WKT

PROJCS["BGS2005_CCS2005", 
	GEOGCS["BGS2005", 
		DATUM["Bulgaria_Geodetic_System_2005", 
			SPHEROID["GRS_1980", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	PROJECTION["Lambert_Conformal_Conic"], 
	PARAMETER["False_Easting", 500000.0], 
	PARAMETER["False_Northing", 4725824.3591], 
	PARAMETER["Central_Meridian", 25.5], 
	PARAMETER["Standard_Parallel_1", 42.0], 
	PARAMETER["Standard_Parallel_2", 43.33333333333334], 
	PARAMETER["Latitude_Of_Origin", 42.66787568333332], 
	UNIT["Meter", 1.0]]

WKT2

PROJCRS["BGS2005_CCS2005", 
	BASEGEOGCRS["BGS2005", 
		DATUM["Bulgaria_Geodetic_System_2005", 
			ELLIPSOID["GRS_1980", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		CS[ellipsoidal, 2], 
		AXIS["Latitude (lat)", north, 
			ORDER[1]], 
		AXIS["Longitude (lon)", east, 
			ORDER[2]], 
		ANGLEUNIT["Degree", 0.0174532925199433]], 
	CONVERSION["Lambert_Conformal_Conic", 
		METHOD["Lambert_Conformal_Conic"], 
		PARAMETER["False_Easting", 500000.0], 
		PARAMETER["False_Northing", 4725824.3591], 
		PARAMETER["Central_Meridian", 25.5], 
		PARAMETER["Standard_Parallel_1", 42.0], 
		PARAMETER["Standard_Parallel_2", 43.33333333333334], 
		PARAMETER["Latitude_Of_Origin", 42.66787568333332]], 
	CS[Cartesian, 2], 
	AXIS["Northing (Y)", north, 
		ORDER[1]], 
	AXIS["Easting (X)", east, 
		ORDER[2]], 
	LENGTHUNIT["Meter", 1.0], 
	ID["EPSG", "7801"]]

Data from @esri/proj-codes

{
  "wkid": 7801,
  "latestWkid": 7801,
  "gcsWkid": 7798,
  "macro": "PE_PCS_BGS2005_CCS2005",
  "name": "BGS2005_CCS2005",
  "wkt": "PROJCS[\"BGS2005_CCS2005\",GEOGCS[\"BGS2005\",DATUM[\"Bulgaria_Geodetic_System_2005\",SPHEROID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Lambert_Conformal_Conic\"],PARAMETER[\"False_Easting\",500000.0],PARAMETER[\"False_Northing\",4725824.3591],PARAMETER[\"Central_Meridian\",25.5],PARAMETER[\"Standard_Parallel_1\",42.0],PARAMETER[\"Standard_Parallel_2\",43.33333333333334],PARAMETER[\"Latitude_Of_Origin\",42.66787568333332],UNIT[\"Meter\",1.0]]",
  "wkt2": "PROJCRS[\"BGS2005_CCS2005\",BASEGEOGCRS[\"BGS2005\",DATUM[\"Bulgaria_Geodetic_System_2005\",ELLIPSOID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433]],CONVERSION[\"Lambert_Conformal_Conic\",METHOD[\"Lambert_Conformal_Conic\"],PARAMETER[\"False_Easting\",500000.0],PARAMETER[\"False_Northing\",4725824.3591],PARAMETER[\"Central_Meridian\",25.5],PARAMETER[\"Standard_Parallel_1\",42.0],PARAMETER[\"Standard_Parallel_2\",43.33333333333334],PARAMETER[\"Latitude_Of_Origin\",42.66787568333332]],CS[Cartesian,2],AXIS[\"Northing (Y)\",north,ORDER[1]],AXIS[\"Easting (X)\",east,ORDER[2]],LENGTHUNIT[\"Meter\",1.0],ID[\"EPSG\",\"7801\"]]",
  "description": "BGS2005 - CCS2005",
  "authority": "EPSG",
  "version": "8.9.3(10.6.0)",
  "deprecated": "no",
  "areaname": "Bulgaria - onshore",
  "extent": {
    "slat": 41.24,
    "nlat": 44.23,
    "llon": 22.36,
    "rlon": 28.68
  }
}