Home Companies MobileSphere, Ltd. FCC filing company
MobileSphere, Ltd. FORM499_ID 824226FRN 0009729641 RMD_NUMBER RMD0009621One Broadway, Cambridge, MA, 02142, US
Related companies These separately maintained company records are connected by a confirmed FCC relationship or shared identity evidence. A matching name alone does not establish that two records are the same legal entity, so their filings remain separate.
Company FRN Relationship basis MobileSphere Shared name and contact details
Data coverage FCC source Matched entities Last refreshed FORM499 1 2026-08-11 02:33:26 RMD 1 2026-08-17 04:09:13
Source records and provenance Each row is an independently retained source identity connected to this company. FCC.report does not overwrite one source with another.
FCC source Recorded name Source identity Match basis Last refreshed FORM499 MobileSphere, Ltd. 824226new source entity 2026-08-11 02:33:26 RMD MobileSphere, LTD frn:0009729641exact frn 2026-08-17 04:09:13
Names and aliases MobileSphere form499 MobileSphere rmd Slybroadcast, Slydial form499 Slynumber, Slyfone form499 FCC Form 499 filer information Filer ID 824226
Legal name MobileSphere, Ltd.
Doing business as MobileSphere
USF contributor No
Registration current as of 2026-04-01
Service start 2003-01-01
Holding company MOBILESPHERE LLC
Customer inquiries 6173999980
Jurisdictions Massachusetts Public contacts and officers Role Name Telephone Location Chairman Beth George Cambridge, MA Chief Executive Toufic Mobarak Cambridge, MA Service Agent Kristopher Twomey Law Office of Kristopher E. Twomey, P.C. 6179530359 Washington, DC
Robocall Mitigation Database filings Recertified RMD number Provider roles Implementation Country FCC record 2026-02-04 RMD0009621 Voice: Yes; Gateway: No; Intermediate: No Complete STIR/SHAKEN Implementation United States of America View filing
IBFS / ICFS filings No filings are available yet.
Experimental filings No filings are available yet.
FCC ID filings No matched FCC ID filings are available.
Universal Licensing System records No matched ULS licenses are available.
Antenna Structure Registration records No matched antenna structure registrations are available.
Licensing and Management System filings No matched LMS filings are available.
Public Inspection File facilities No matched Public Inspection File facilities are available.
Historical CDBS broadcast filings No matched historical CDBS filings are available.
FCC auction participation No matched FCC auction bidder records are available.
Broadband Data Collection providers No matched BDC provider identifiers are available.
Intermediate Provider Registry No matched Intermediate Provider Registry entries are available.
Sources and provenance Source Source record Retrieved Match FORM499 824226 2026-08-11 02:32:22 Confirmed Company Identity RMD frn:0009729641 2026-07-31 03:54:16 Confirmed Company Identity
Recorded identity details Values are retained with their source and observation dates; differences are not silently overwritten.
Field Recorded value Source Observed Address One Broadway, Cambridge, MA, 02142, US COMPANY 2026-07-29 - 2026-07-31 Email Domain lokt.net FORM499 Form499 Id 824226 FORM499 2026-07-29 - 2026-07-31 Frn 0009729641 FORM499 2026-07-29 - 2026-07-31 Frn 0009729641 RMD 2026-07-29 - 2026-07-31 Name MobileSphere IPR 2026-07-30 - 2026-07-31 Name MobileSphere, LTD RMD 2026-07-29 - 2026-07-31 Name MobileSphere, Ltd. COMPANY 2026-07-29 - 2026-07-31 Name MobileSphere, Ltd. FORM499 2026-07-29 - 2026-07-31 Phone 6173999980 FORM499 1000-01-01 Phone 6179530359 FORM499 Rmd Number RMD0009621 RMD 2026-07-29 - 2026-07-31