FCC Registration Number

FRN 0001551993

CORES registration

CORES status: discovered

Connected companies

Company	Relationship	Source	Confidence
California Water Service Company	owner	ASR	100.0%
California Water Service Company	licensee	ULS	100.0%

Public regulatory phone numbers

Number	Contact	Source	Confidence
(310) 377-5525	California Water Service Company owner	ASR	100.0%
(408) 367-8214	California Water Service Company L	ULS	100.0%
(408) 367-8242	California Water Service Company L	ULS	100.0%
(408) 367-8318	California Water Service Company owner	ASR	100.0%

ULS licenses

Grant date	Call sign	Service	Status	Licensee
2026-06-09	WSND292	MG	A	California Water Service Company
2026-04-22	WQXX542	GB	A	California Water Service Company
2025-12-03	WQWU232	MG	A	California Water Service Company
2025-12-03	WQWU233	MG	A	California Water Service Company
2025-07-05	WQWG682	MG	A	California Water Service Company
2025-02-15	KCJ435	IG	A	California Water Service Company
2025-02-15	KMG675	IG	A	California Water Service Company
2024-12-11	KMG751	IG	A	California Water Service Company
2024-09-28	KMJ286	IG	A	California Water Service Company
2024-09-28	WPPD804	IG	A	California Water Service Company
2024-05-22	KCJ434	IG	A	California Water Service Company
2024-05-22	KML373	IG	A	California Water Service Company
2024-03-20	KMH330	IG	A	California Water Service Company
2024-01-31	WQTJ472	MG	A	California Water Service Company
2024-01-20	WQTH612	MG	A	California Water Service Company
2024-01-08	WSAD324	IG	A	California Water Service Company
2024-01-06	KJZ490	IG	A	California Water Service Company
2024-01-06	KNIC712	IG	A	California Water Service Company
2023-12-13	WRZU704	MG	A	California Water Service Company
2023-12-13	WRZU703	MG	A	California Water Service Company
2023-12-13	WRZU702	MG	A	California Water Service Company
2023-09-30	WQSM557	IG	A	California Water Service Company
2023-07-29	WQRV411	MW	A	California Water Service Company
2023-07-24	WRYC420	MG	A	California Water Service Company
2023-07-24	WRYC421	MG	A	California Water Service Company
2023-05-06	WPXU334	IG	A	California Water Service
2023-02-23	WRWH923	MG	A	California Water Service Company
2023-02-23	WRWH922	MG	A	California Water Service Company
2023-02-11	WPXA836	MG	A	California Water Service Co.
2023-01-19	KGP570	IG	A	California Water Service Company
2023-01-19	KC4756	IG	A	California Water Service Company
2023-01-14	WPAX948	IG	A	California Water Service Company
2022-11-09	KMK286	IG	A	California Water Service Company
2022-11-09	KMH331	IG	A	California Water Service Company
2022-11-09	KMH938	IG	A	California Water Service Company
2022-10-27	WQQI772	MG	A	California Water Service Company
2022-10-27	WQQI769	MG	A	California Water Service Company
2022-10-27	WQQI773	MG	A	California Water Service Company
2022-10-27	WQQI770	MG	A	California Water Service Company
2022-06-22	WQPQ357	MG	A	California Water Service Company
2022-06-22	WQPL538	MG	A	California Water Service Company
2022-06-22	WQPQ353	MG	A	California Water Service Company
2022-06-13	WRTF886	YB	A	California Water Service Company
2022-04-26	WNTN828	MG	A	California Water Service Company
2022-04-26	WNTN831	MG	A	California Water Service Company
2022-04-26	WNTN826	MG	A	California Water Service Company
2022-04-26	WNTN827	MG	A	California Water Service Company
2022-04-26	WNTN825	MG	A	California Water Service Company
2022-04-26	WNTN830	MG	A	California Water Service Company
2022-04-26	WNTL988	MG	A	California Water Service Company
2022-04-26	WNTN829	MG	A	California Water Service Company
2022-04-06	WPVN650	MG	A	California Water Service Company
2022-04-06	WPVL852	MG	A	California Water Service Company
2022-04-06	WPVN658	MG	A	California Water Service Company
2022-04-06	WPVL956	MG	A	California Water Service Company
2022-04-06	WPVL855	MG	A	California Water Service Company
2022-04-06	WPVN645	MG	A	California Water Service Company
2022-04-06	WPVL954	MG	A	California Water Service Company
2022-04-06	WPVL953	MG	A	California Water Service Company
2022-04-06	WPVL952	MG	A	California Water Service Company
2022-04-06	WPVL891	MG	A	California Water Service Company
2022-04-06	WPVN640	MG	A	California Water Service Company
2022-04-06	WPVL948	MG	A	California Water Service Company
2022-04-06	WPVN657	MG	A	California Water Service Company
2022-04-06	WPVL950	MG	A	California Water Service Company
2022-04-06	WPVL892	MG	A	California Water Service Company
2022-04-06	WPVL951	MG	A	California Water Service Company
2022-04-06	WPVL959	MG	A	California Water Service Company
2022-04-06	WPVL958	MG	A	California Water Service Company
2022-04-06	WPVL845	MG	A	California Water Service Company
2022-04-06	WPVL850	MG	A	California Water Service Company
2022-04-06	WPVL844	MG	A	California Water Service Company
2022-04-06	WPVN659	MG	A	California Water Service Company
2022-04-06	WPVL955	MG	A	California Water Service Company
2022-04-06	WPVL957	MG	A	California Water Service Company
2022-04-06	WPVL949	MG	A	California Water Service Company
2022-03-07	WRPQ608	IG	A	California Water Service Company
2022-02-15	WQOV966	MG	A	California Water Service Company
2022-02-15	WQPG269	MG	A	California Water Service Company
2022-02-15	WQPG268	MG	A	California Water Service Company
2022-02-15	WQOV964	MG	A	California Water Service Company
2022-01-15	WQOS826	MG	A	California Water Service Company
2022-01-15	WQOS830	MG	A	California Water Service Company
2022-01-12	KMH332	IG	A	California Water Service Company
2022-01-12	KME266	IG	A	California Water Service Company
2022-01-12	KCZ351	IG	A	California Water Service Company
2022-01-12	KMH333	IG	A	California Water Service Company
2021-03-18	WRMB979	MG	A	California Water Service
2020-12-08	WRKC215	MG	A	California Water Service
2020-12-02	WRKA836	MG	T	California Water Service
2020-12-01	WRKA682	MG	A	California Water Service
2020-08-05	WRJC472	MG	A	California Water Service Company
2020-08-05	WRJC473	MG	A	California Water Service Company
2019-07-17	WQKK665	IG	A	CALIFORNIA WATER SERVICE COMPANY
2019-04-16	WRDF375	MG	A	California Water Service Company
2018-11-15	WRCN202	MG	A	California Water Service Company
2018-06-13	WNTQ902	MG	A	California Water Service Company
2018-06-13	WPOP813	MG	A	California Water Service Company
2018-01-22	WRAP337	MG	A	California Water Service Company
2018-01-22	WRAP335	MG	A	California Water Service Company

Antenna Structure Registrations

Issued	Registration	Registrant	Status
2013-04-15	1282495	California Water Service Company	NT
2013-04-15	1283615	California Water Service Company	NT
2001-06-21	1047949	California Water Service Company	NT

Source provenance

System	Record	Recorded name	Raw FRN	Observed
ASR	5fbaca461f67b3ec3e34ede801a9f762b568da4c12e50a6dbdcdb8210c2394e8	California Water Service Company	0001551993	2026-08-05 18:18:28
ULS	030975d73f8e3701b688e53502117798fd5813306a04f0208118221ce1351ac5	California Water Service Company	0001551993	2026-08-05 14:18:29
ULS	02952b66a59fd00d91dc7366975a647de0ba4005641de8496fdc640b008bd9ef	California Water Service Company	0001551993	2026-08-05 02:48:29
ASR	0381136765ea3c2596ba80341cbe2d3c44fdb6dabc06aeed88167052799bda32	California Water Service Company	0001551993	2026-07-31 20:48:06

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