Glo Customer Care Number (Nigeria): How to Reach Support Fast in 2025

If you are a Glo (Globacom) subscriber in Nigeria, the quickest way to reach customer care is by phone. As of 2025, Nigeria’s harmonized short code for customer support is 300, and Glo continues to support its long‑standing helplines. Below is a complete, practical guide with exact numbers, channels, and self‑service codes to help you resolve issues faster.

All numbers and codes listed here are for Glo Nigeria. If you are roaming or calling from another network, use the international/out‑of‑network numbers provided in the contacts section.

Primary Numbers to Call

From any Glo line in Nigeria, dial 300 to reach customer care. This is the national harmonized short code mandated by the Nigerian Communications Commission (NCC) and is toll‑free on the Glo network. You can use it for enquiries on airtime/data, SIM registration/NIN link, value‑added services, roaming, and technical complaints.

Glo also maintains its legacy helplines: dial 121 for prepaid support and 200 for postpaid support from a Glo line. These calls are toll‑free on the Glo network. If you are calling from another network or from outside Nigeria, use the direct numbers shown in the contact list below. Standard out‑of‑network or international calling rates will apply in those cases.

When Each Line Works Best

Use 300 if you prefer the NCC‑standardized route; the interactive voice response (IVR) will guide you to the right queue. If you know your account type, 121 (prepaid) and 200 (postpaid) can be slightly faster for routing, especially when you need plan changes, billing clarifications, or SIM‑specific help. All lines are available 24/7, including public holidays.

Keep your line active and within network coverage while waiting—agents may return your call if a callback is needed. After your discussion, ask for a ticket or case reference number; it is essential for tracking follow‑ups or escalating unresolved issues.

Official Contact Channels and Addresses

Glo supports multiple contact methods to fit your situation—phone, email, web chat, and walk‑in care at Gloworld shops. Phone support remains the fastest for urgent or line‑barred issues, while email and web chat are convenient for non‑urgent requests where you can attach screenshots or documents.

For in‑person assistance (SIM swap, NIN–SIM compliance, device checks), visit a Gloworld shop. The corporate head office address is Mike Adenuga Towers, 1 Mike Adenuga Close, Off Adeola Odeku Street, Victoria Island, Lagos, 101241, Nigeria. For the nearest retail location, use the store locator on Glo’s website.

• Customer care (harmonized, toll‑free on Glo): 300
• Customer care (legacy, toll‑free on Glo): 121 (prepaid), 200 (postpaid)
• From other networks/international (Prepaid line support): +234 805 002 0121
• From other networks/international (Postpaid line support): +234 805 002 0200
• Email (general support): [email protected]
• Website (Nigeria): https://www.gloworld.com/ng
• Self‑care portal: https://selfcare.gloworld.com
• Live chat: https://www.gloworld.com/ng/contact-us
• Twitter/X: https://twitter.com/GloWorld
• Facebook: https://www.facebook.com/GloWorld
• Head office: Mike Adenuga Towers, 1 Mike Adenuga Close, Off Adeola Odeku St., Victoria Island, Lagos 101241
• Store locator: https://www.gloworld.com/ng/stores

Self‑Service Codes and Quick Fixes

Before calling, try the USSD codes below. They handle most routine tasks in seconds—balance checks, recharges, data bundles, borrowing services, and NIN–SIM linkage. You can use both the NCC‑harmonized codes and Glo’s long‑standing shortcodes; Glo continues to support its legacy codes for subscribers who prefer them.

Tip: After using a USSD code, wait for the on‑screen prompt and any confirmation SMS. Keep those messages if you need to reference a transaction ID during a later call with an agent.

• Customer care: 300 (harmonized)
• Airtime balance: 310 (harmonized)
• Recharge (PIN): 311PIN# (harmonized); legacy format also supported: *123*PIN#
• Data plans (purchase/manage): 312 (harmonized); Glo legacy menu: *777#
• Borrow services (airtime/data): 303 (harmonized); legacy: *321#
• Data balance: legacy: *127*0# (common on Glo); also available via *777# menu
• NIN–SIM linkage: 996 (harmonized)
• Stop VAS/Unsubscribe from services: 305 (harmonized)
• IMEI display (device): dial *#06# (universal; not a carrier code)

What to Prepare Before You Call

Have your Glo mobile number, full name as registered, and a reachable alternate phone or email ready. Keep recent recharge details (amount and date), last data plan purchased, and any relevant SMS confirmations. If you are calling about billing or data usage, note the time window and the apps or services involved.

For SIM‑related issues, keep your SIM pack (for the SIM serial/ICCID and PUK), your National Identification Number (NIN), and a valid ID within reach. For device/network issues, note your phone model, software version, and IMEI (*#06#). If you are abroad, record your current country and roaming network; this helps the agent troubleshoot roaming and partner operator settings quickly.

Enterprise and High‑Value Accounts

If your line is under a corporate or enterprise account, contacting the care lines listed above will still work, but referencing your corporate account number and company name will speed up routing. If your company has an assigned Glo account manager, escalate through that channel for SLA‑bound issues or multi‑line faults.

For enterprise fixed connectivity, SIP, APNs, or IoT SIMs, provide circuit IDs, SIM ICCIDs, and the service address. Use the self‑care portal and general email to open a ticket, then share the ticket ID with your account manager for priority handling.

Common Scenarios and the Fastest Route

Line barred or one‑way service: first check balance using 310 and data/plan status via 312 or *777#. If billing is fine but calls/SMS still fail, power‑cycle the phone and reselect the network in settings before calling 300. Provide any recent SIM swaps or plan changes to the agent.

Lost SIM or SIM swap: visit a Gloworld shop with your NIN and a valid ID for SIM replacement. If you are abroad and cannot visit a store, call +234 805 002 0121 or +234 805 002 0200 to discuss options and necessary verification. Ask for the ticket number and the exact documents required to avoid repeat visits.

Costs, Availability, and Response Times

Calls to 300, 121, and 200 are toll‑free on the Glo network within Nigeria. Calls to +234 805 002 0121 or +234 805 002 0200 from other networks or overseas are charged at the originating carrier’s out‑of‑network/IDD rates. Live chat and email are free, but they require data or internet access.

Phone support is available 24/7. Email replies and social media responses typically take longer than calls; for time‑sensitive matters (barred lines, SIM loss, failed recharges), call first and then follow up by email with your case reference if you need a paper trail.

Verification and Updates

Numbers and codes can be updated by the NCC or Glo. If a code or link does not work for you, check the Glo Nigeria site (https://www.gloworld.com/ng) or the store locator page for the latest details before retrying.