Indosat Singapore

Indosat Singapore is the regional entity of Indosat Ooredoo Hutchison, Indonesia's second-largest mobile and digital telecommunications operator.

Registered address
3 Anson Road, Springleaf Tower #31-1A/4, Singapore 079909
Team size
1000+
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Overview of Indosat Singapore Pte Ltd

Specializations
CarrierTelecom

Indosat Singapore is the regional entity of Indosat Ooredoo Hutchison, Indonesia's second-largest mobile and digital telecommunications operator. The Singapore office handles international wholesale voice, IP transit, MPLS, and submarine-cable capacity sales serving carriers and multinational enterprises with Indonesian connectivity requirements. Indosat owns and operates extensive Indonesia network infrastructure plus stakes in major submarine cable systems linking Indonesia to Singapore and global hubs. The Singapore presence enables international peering, cloud on-ramp access, and regional carrier interconnect, supporting Indonesian banks, manufacturers, and OTT providers with cross-border connectivity needs. Indosat is listed in Indonesia and majority-owned by Ooredoo and CK Hutchison.

  • Recorded Singapore presence: Singapore-registered entity (UEN), Physical Singapore office
  • Address: 3 Anson Road, Springleaf Tower #31-1A/4, Singapore 079909
  • Phone: +65 6235 5155
  • Email: sales@indosatooredoo.com.sg
  • Website: https://ioh.co.id/
  • Licence type: FBO

Profile updated 2 Jun 2026 Report incorrect data

Buyer Decision Checklist

Connectivity decisions in Singapore hinge on licensing, route diversity, and contractual SLAs far more than headline speeds. Use this checklist to separate a resilient carrier partner from a thin reseller before you commit to a 24-36 month term.

How to evaluate a telecommunications / connectivity provider in Singapore

  • Confirm the IMDA licence class behind the service: an FBO owns fibre, spectrum, and exchanges, while an SBO resells that capacity — for low-latency, mission-critical links, ask which underlying carrier actually delivers the circuit.
  • Pin down the SLA in writing — committed uptime, latency, jitter, packet loss, and a named MTTR with a credit schedule — and reject any "best effort" language for business-grade lines.
  • Ask for route and carrier diversity: verify that primary and backup paths use physically separate ducts and ideally separate carriers, not two lanes in the same conduit.
  • Lock down installation lead times and require a site survey upfront — fibre installs can run 4-12 weeks — and negotiate 30-day dual-running of old and new services to avoid a hard-cutover outage.
  • Read the termination and exit terms before signing: early-termination charges, notice periods, IMDA-mandated number portability for any fixed-line or mobile numbers, and who owns the on-site equipment at the end.
  • Map data sovereignty for voice: ask where call recordings and CDR/metadata are stored and processed, and require PDPA-compliant cross-border clauses if any of it leaves Singapore.

Verify for Indosat Singapore Pte Ltd

  • Confirm key details directly with the vendor — this listing isn't vendor-managed yet.
  • Ask for two recent Singapore client references you can speak with.
  • Ask for a written scope of services before comparing quotes.
  • Request evidence of relevant certifications and their current validity.

Questions to ask

  • What committed uptime, latency, jitter, packet loss, and MTTR are in the SLA, and what credits apply when you miss them?
  • Are the primary and backup routes physically diverse, and which underlying FBO carries each path?
  • What are the full early-termination charges, notice period, and number-porting process if we leave?
  • What is the realistic installation lead time after a site survey, and can you guarantee dual-running during cutover?

Prepared under the TechDirectory editorial byline with review credit June C; this label is not proof of identity, credentials, or a completed human review. This directory-authored checklist is not attributed to Indosat Singapore Pte Ltd; editorial independence has not been independently audited. Editorial standards

25/100

Profile signal score

Based on recorded profile signals. It is not a certification or independent verification of every claim, and it does not measure vendor quality or endorsement; paid plans do not affect it. How it works.

  • UEN recorded on profile UEN recorded 20/20
  • Owner-claimed profile No owner claim recorded 0/10
  • Recorded grant eligibility None recorded 0/15
  • Recorded CSA trustmark None / expired 0/15
  • Listed certifications None listed 0/10
  • Approved reviews No approved reviews yet 0/20
  • Profile completeness 5/10 completeness 5/10