EntityWire

EntityWire / EIN 04-3332534

Employer with a benefit plan

IBASIS, INC.

EIN 04-3332534. What DOL Form 5500 filings (EFAST2) and SEC EDGAR company filings say about this entity, with the source and date on every fact. Latest record 2025-09-16.

Employer with a benefit plan ยท SEC filer

IBASIS, INC.

10 MAGUIRE ROAD, LEXINGTON, MA 02421

EIN

04-3332534

Benefit plan 1, 2024 filing

IBASIS, INC. 401(K) RETIREMENT PLAN

DOL · 2025-09-16

Participants (start of year)

204

DOL · 2025-09-16

Plan features

code 2E2F2G2J2K2T3H3D

DOL · 2025-09-16

Plan type

Single-employer plan

DOL · 2025-09-16

Business code (NAICS)

517000

DOL · 2025-09-16

Benefit plan 1, 2023 filing

IBASIS, INC. 401(K) RETIREMENT PLAN

DOL · 2024-09-23

Participants (start of year)

215

DOL · 2024-09-23

Plan features

code 2E2F2G2J2K2T3H3D

DOL · 2024-09-23

Plan type

Single-employer plan

DOL · 2024-09-23

Business code (NAICS)

517000

DOL · 2024-09-23

Benefit plan 502, 2023 filing

IBASIS, INC. WELFARE BENEFIT PLAN

DOL · 2024-05-29

Participants (start of year)

104

DOL · 2024-05-29

Plan features

code 4A4B4D4E4F4H4R

DOL · 2024-05-29

Plan type

Single-employer plan

DOL · 2024-05-29

From DOL Form 5500 filings (EFAST2) · SEC EDGAR company filings. Latest record 2025-09-16.

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