NAD 1983 StatePlane Guam FIPS 5400 (Meters) - ESRI:65161

WKT

PROJCS["NAD_1983_StatePlane_Guam_FIPS_5400", 
	GEOGCS["GCS_North_American_1983", 
		DATUM["D_North_American_1983", 
			SPHEROID["GRS_1980", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	PROJECTION["Polyconic"], 
	PARAMETER["False_Easting", 50000.0], 
	PARAMETER["False_Northing", 50000.0], 
	PARAMETER["Central_Meridian", 144.7487507055556], 
	PARAMETER["Latitude_Of_Origin", 13.47246635277778], 
	UNIT["Meter", 1.0]]

WKT2

PROJCRS["NAD_1983_StatePlane_Guam_FIPS_5400", 
	BASEGEOGCRS["GCS_North_American_1983", 
		DATUM["D_North_American_1983", 
			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["Polyconic", 
		METHOD["Polyconic"], 
		PARAMETER["False_Easting", 50000.0], 
		PARAMETER["False_Northing", 50000.0], 
		PARAMETER["Central_Meridian", 144.7487507055556], 
		PARAMETER["Latitude_Of_Origin", 13.47246635277778]], 
	CS[Cartesian, 2], 
	AXIS["Easting (X)", east, 
		ORDER[1]], 
	AXIS["Northing (Y)", north, 
		ORDER[2]], 
	LENGTHUNIT["Meter", 1.0], 
	ID["Esri", "65161"]]

Data from @esri/proj-codes

{
  "wkid": 65161,
  "latestWkid": 65161,
  "gcsWkid": 4269,
  "macro": "PE_PCS_NAD_1983_GU",
  "name": "NAD_1983_StatePlane_Guam_FIPS_5400",
  "wkt": "PROJCS[\"NAD_1983_StatePlane_Guam_FIPS_5400\",GEOGCS[\"GCS_North_American_1983\",DATUM[\"D_North_American_1983\",SPHEROID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Polyconic\"],PARAMETER[\"False_Easting\",50000.0],PARAMETER[\"False_Northing\",50000.0],PARAMETER[\"Central_Meridian\",144.7487507055556],PARAMETER[\"Latitude_Of_Origin\",13.47246635277778],UNIT[\"Meter\",1.0]]",
  "wkt2": "PROJCRS[\"NAD_1983_StatePlane_Guam_FIPS_5400\",BASEGEOGCRS[\"GCS_North_American_1983\",DATUM[\"D_North_American_1983\",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[\"Polyconic\",METHOD[\"Polyconic\"],PARAMETER[\"False_Easting\",50000.0],PARAMETER[\"False_Northing\",50000.0],PARAMETER[\"Central_Meridian\",144.7487507055556],PARAMETER[\"Latitude_Of_Origin\",13.47246635277778]],CS[Cartesian,2],AXIS[\"Easting (X)\",east,ORDER[1]],AXIS[\"Northing (Y)\",north,ORDER[2]],LENGTHUNIT[\"Meter\",1.0],ID[\"Esri\",\"65161\"]]",
  "description": "NAD 1983 StatePlane Guam FIPS 5400 (Meters)",
  "authority": "Esri",
  "version": "4.0.0",
  "deprecated": "no",
  "areaname": "Guam",
  "extent": {
    "slat": 10.95,
    "nlat": 15.91,
    "llon": 141.19,
    "rlon": 148.18
  }
}