Public regulatory phone

(781) 907-3409

Associations below come from public FCC regulatory records. Confidence describes the source relationship, not current ownership of the number.

Company or contact	FRN	System	Source record	Confidence	Observed
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	15c8b6379521bc3e8d2390c41fd75242458865fc23425dace2e81e2f9e352d4d	Authoritative identifier (100.0%)	2026-09-16 19:45:59
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	151f8a65e4237be7f7ea06fa891049e8a9365abe675086e1d65501f1ce1aa2c7	Authoritative identifier (100.0%)	2026-09-15 11:15:54
National Grid USA Service Company, Inc. L	0016041857	ULS	13e0c3fbd36ac319cfca2c08609ba193df9a4ea7dbdd060d36d00ce2280570b4	Authoritative identifier (100.0%)	2026-09-12 20:15:42
National Grid USA Service Company, Inc. L	0016041857	ULS	13c8236fc574bd57b4a7f9cf478c105ec6e2ed586776dc91797cd8515b65109c	Authoritative identifier (100.0%)	2026-09-12 15:45:39
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	1393858de307ae7b675e7f69877709ec6c5dfe9d11e945b45b77eaf31e239e1d	Authoritative identifier (100.0%)	2026-09-12 10:45:38
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	1331f6583dd13bb4a5f0c1288b5fdbbaf363e944bbae6a5381bff92916f2b5c5	Authoritative identifier (100.0%)	2026-09-11 14:45:31
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	13176f486f3819fd68def6019e8f7db643a3cd3b6fd1ef6408b7532aff5e1bee	Authoritative identifier (100.0%)	2026-09-11 11:15:35
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	12bfc9521176e2ae3a4e3bfd805fe13ff3113763a6f849055b78a62763560b76	Authoritative identifier (100.0%)	2026-09-10 22:45:30
KeySpan Corporation L	0003507175	ULS	1295fc1fa0b3f88b099776deb41c2f18a0e52b523cdbae06cba45eacf54249a5	Authoritative identifier (100.0%)	2026-09-10 17:15:33
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	1286cec479e93cb1dd22e90beb3d31c1aad48ce40cf575eb144a7e1407f784f6	Authoritative identifier (100.0%)	2026-09-10 15:15:30
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	124561b694f808205f9441ac379691478ce76a182d5c383f2e4d9ff37819592c	Authoritative identifier (100.0%)	2026-09-10 08:45:31
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	121c4513cd0d8266a95c064f1454002a95a0ac7c095c6b805cec12ee3e8c816d	Authoritative identifier (100.0%)	2026-09-10 04:15:27
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	11c171f1a6aaf6e6abff471496ca29ec1afc1b71c96fe41d77622b45ba5b4ad4	Authoritative identifier (100.0%)	2026-09-09 17:45:34
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	1117c70fa891cc38d392b9a3eb7abbe7c839c5cc0377b97cbbfcff7f21948449	Authoritative identifier (100.0%)	2026-09-08 13:45:25
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	10f738e8f5025e59eb31e5aac355af40be2c7a155dfaf2a738833be33a26e477	Authoritative identifier (100.0%)	2026-09-08 09:45:26
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	10d7c21295f1f0b52a9a4bc6be106d8150a39f4685a00af612f5a555da1f9c44	Authoritative identifier (100.0%)	2026-09-08 04:15:23
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	10c8f1505aa795daa15e4094254a85cee5c392bea389a382f13573315ed65491	Authoritative identifier (100.0%)	2026-09-08 03:15:21
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	0f870c7e3b7a32671c4c05d3da663dc1e491085acbf945ce88f791420903bd25	Authoritative identifier (100.0%)	2026-09-02 02:44:59
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	0f1143807c7a63cf8de222c4f5943ab6b169992e9f9d5a5de950e2adf8767aac	Authoritative identifier (100.0%)	2026-08-31 10:15:04
National Grid USA Service Company, Inc. L	0016041857	ULS	0da8b1e70e25c068c69c5165f0e86cb1eed785a32311a1dca7dd703d68ff3d78	Authoritative identifier (100.0%)	2026-08-26 16:14:30
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	0d64255f3ff9d1f1480ffd8faf79ecc0f7797793ec8ac61c1a7ae8579b3a06d7	Authoritative identifier (100.0%)	2026-08-25 10:44:24
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	0d084e5b7e15450145aa7b2349588b2488d32b85e5a49b9642e101c4efb3ce7d	Authoritative identifier (100.0%)	2026-08-24 14:44:19
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	0cbfe9416c2837b651b49364695f61fa85208e60897364856c0a206ddf049894	Authoritative identifier (100.0%)	2026-08-23 22:44:32
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	0c791e13d7b705f8676396b3058edfd710271c55d0c7ff755457b3f935b91ddf	Authoritative identifier (100.0%)	2026-08-23 01:44:20
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	0a8931f350b2ecedc61f8d32bc68b4cff9775c900cc5dd7e7c76ddbd82a08cb0	Authoritative identifier (100.0%)	2026-08-19 01:49:35
KeySpan Corporation L	0003507175	ULS	0a6d133c073b7a894603ab65faf18bec615c6969d855afc2378117d04ab9175e	Authoritative identifier (100.0%)	2026-08-18 21:19:30
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	0a30c1f9a7fb31665522db7ba5442932e0ad0dc762a56b3330af6637125dddf4	Authoritative identifier (100.0%)	2026-08-18 09:19:29
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	09fa7d8ff7e90a98cfd85ea0ded15d35bcaa73e615f6499b276b6ff15fd771b2	Authoritative identifier (100.0%)	2026-08-17 22:19:30
KeySpan Corporation L	0003507175	ULS	095f1ddcc5f9b8bed5e6c2977de7c46c6805632ee5a437819eff4e9c3681c6ab	Authoritative identifier (100.0%)	2026-08-16 11:19:28
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	08de658717ec21bb118df8fa68aef9a38257e7f565381c1aa6cda69f8184ee6c	Authoritative identifier (100.0%)	2026-08-15 08:19:20
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	08b601db52f145fd8f633615a7a7987c7cc596bd51a6d1c1098a7c470f53b595	Authoritative identifier (100.0%)	2026-08-15 04:19:17
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	0760c9e3441ec88874d8130a31b9ce506a51852dd61502169009aebdd5528926	Authoritative identifier (100.0%)	2026-08-12 18:19:13
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	06ed883b97252d5b06893cf6a3d20a18373307c7a85dd4fd3f6fbffd06f7ade2	Authoritative identifier (100.0%)	2026-08-12 05:49:08
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	05ad21d6833f5a58c77719827844ea71b54edad89e4a329ade423cb91cb58fc5	Authoritative identifier (100.0%)	2026-08-10 03:48:53
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	04e9ab395745c122c8de7132bc46a49ae8ac5e06541b7774273002debb89a74a	Authoritative identifier (100.0%)	2026-08-08 09:18:47
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	04d22b892d91ec6d4f1ac997634ef17dd1333783b972f35f8168f5d6c642c90f	Authoritative identifier (100.0%)	2026-08-08 05:18:50
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	04a30c33a1de8f4baa8c0057e985ffdde604d36bd4beba22e0daf734e244aee0	Authoritative identifier (100.0%)	2026-08-08 01:18:41
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	047bea03ad21b3bfa67a5b18372344dd0f9a6f3cf417cc9bb9838cbbebc7ebae	Authoritative identifier (100.0%)	2026-08-07 19:18:44
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	03f1db1bd56b56d83e80139be81584c8db8939e04f875c10845aa4e7ab36693d	Authoritative identifier (100.0%)	2026-08-06 18:18:36
KeySpan Corporation L	0003507175	ULS	03cf33590d4fc2499f0c8c1fbd93fc32c86980f0772c256b2901258a7b85777b	Authoritative identifier (100.0%)	2026-08-06 13:48:37
KeySpan Corporation L	0003507175	ULS	033ee8a42ffe351b23b767237b478d1e987f49b168cef7dc25a75728a2a29960	Authoritative identifier (100.0%)	2026-08-05 19:18:31
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	032def279b1279879f00ef127933ea37c6edd6b59bf1e4f532d23b99e9a2b552	Authoritative identifier (100.0%)	2026-08-05 17:48:31
KeySpan Corporation L	0003507175	ULS	02f7accd1c169459d07cba56b7aa7a17fdcb00b97ff27f4724a6ad4bc0885064	Authoritative identifier (100.0%)	2026-08-05 12:18:30
NIAGARA MOHAWK POWER CORP L	0005196530	ULS	02a35c8d45eb0b6668a58c16ad03ff311a05978aca864661e26df6995226fa21	Authoritative identifier (100.0%)	2026-08-05 03:48:30
KeySpan Corporation L	0003507175	ULS	02885ce119a455614e7e04608686679af2e7b51dc90cd592f7a658c95927f06c	Authoritative identifier (100.0%)	2026-08-05 00:18:27
NATIONAL GRID USA SERVICE CO, INC. L	0003628997	ULS	0016f3561cdf1303336272a4878473b905d4e14b24d015ca77360ef59c18c8c6	Authoritative identifier (100.0%)	2026-07-31 20:09:47