In brief: Number portability — the ability to keep your phone number when switching providers — is a fundamental right in South Africa’s telecoms market. SA resellers who understand the number portability framework handle client migrations more competently and avoid the costly mistakes that frustrate clients and create disputes.
ICASA’s Review of Number Portability Regulations
ICASA periodically reviews South Africa’s number portability regulations to ensure they remain fit for purpose as the market evolves. The 2023 review reflected the significant changes in SA’s telecoms landscape since the original number portability rules were established — including the growth of VoIP and cloud telephony, the decline of legacy ISDN infrastructure, and the changing relationship between geographic numbers and physical locations.
The review examined questions including: whether portability between different types of networks (mobile to VoIP, geographic to non-geographic) should be more freely available; whether the current porting timeframes and procedures are adequate; and how the growth of cloud telephony affects the interpretation of existing portability rules.
Types of Number Portability in South Africa
Mobile Number Portability (MNP): Available since 2006. Allows SA mobile subscribers to keep their number when switching between Vodacom, MTN, Cell C, Telkom Mobile, and licensed MVNOs. MNP ports typically complete within 3 business days. The porting process requires the subscriber to initiate a port at the gaining network, provide RICA documentation, and sign a Letter of Authority (LOA).
Fixed-Line Number Portability (FLNP): Allows businesses and residential customers to keep geographic numbers (010, 011, 012, 021, 031, etc.) when switching fixed-line providers — including switching from Telkom’s ISDN/copper service to a VoIP provider. FLNP ports can take longer than MNP (typically 5–15 business days) because of the additional processes involved in geographic number range reassignment.
Service Provider Portability (SPP): Allows numbers to move between service providers who use the same network infrastructure. Less commonly relevant to resellers but important to understand in the context of wholesale arrangements.
The Porting Process: Step by Step
For SA telecoms resellers managing number ports for clients migrating to VoIP, here is the standard porting workflow:
Step 1: Verify portability and confirm number type. Not all numbers are portable in all circumstances. Numbers associated with active contracts that include early termination penalties may have porting restrictions until the contract term expires. Confirm the current provider, contract status, and port eligibility before committing to a migration timeline.
Step 2: Collect documentation.
- Letter of Authority (LOA) — signed by the account holder, authorising the losing provider to release the number to the gaining provider. The LOA must match the account details exactly.
- RICA documentation — a copy of the ID document and proof of address that was used to RICA register the number. For business accounts, this is typically a company registration document and director/authorised signatory ID.
- Current account number with the losing provider — required for the porting request.
Step 3: Submit porting request to the gaining provider. Your SIP trunk provider (Euphoria Telecom, Voxtelecom, etc.) submits the porting request on your behalf through the Number Portability Central Office (NPCO). The NPCO manages the national number portability database that routes calls to ported numbers correctly.
Step 4: Await confirmation and track status. Fixed-line ports take 5–15 business days. During this period, the current service must remain active. Do not cancel the losing carrier’s service until the port confirms as complete — the number will be lost if the service is cancelled before porting completes.
Step 5: Test and verify. After porting completes, make test calls to the ported number from multiple external sources (mobile, landline, geographic number, VoIP). Verify calls route to the new platform. Check that outbound calls from the ported number display the correct caller ID.
Common Porting Problems and Solutions
LOA rejection: The most common cause of porting delays. LOAs are rejected if the signatory name doesn’t exactly match the account holder name on record, if the company name is abbreviated differently, or if the document is signed by someone not listed as an authorised signatory. Solution: obtain the exact account name from the losing provider before completing the LOA.
Concurrent call routing during transition: There is typically a brief period during porting where calls may intermittently route to both old and new infrastructure. Schedule ports for low-traffic periods (Friday afternoon, weekend morning) to minimise impact on clients.
Port blocks on contract numbers: Numbers associated with active Telkom contracts or other provider contracts may be blocked from porting until the contract end date. Check the contract status upfront and either plan around the contract end date or negotiate an early exit.
VoIP Number Ranges: The 087 Option
For clients who are starting fresh (new business, new communications system) rather than migrating existing numbers, VoIP-native number ranges offer an attractive alternative to geographic porting. South Africa’s 087 number range is specifically allocated for VoIP and IP-based services and is available directly from licensed SIP trunk providers without porting complexity.
087 numbers are non-geographic — they don’t imply a physical location, which suits businesses with distributed workforces or national rather than local customer relationships. They’re often available with same-day provisioning, unlike ported numbers that require 5–15 business days.
What This Means for SA Telecoms Resellers
Number portability is the administrative backbone of every VoIP migration. Getting it right — understanding the process, collecting the right documentation, and managing client expectations about timelines — is a professional skill that directly affects client satisfaction with the overall deployment experience.
Resellers who have a documented, reliable porting process are able to manage client expectations from the start, avoid surprises, and deliver migrations that go smoothly. This competency is often underestimated but frequently cited by clients as a differentiator between “good” and “great” resellers.
About the Author
Mechelle Gindra
Mechelle Gindra is the managing editor and lead content strategist at Telecoms-Channel, South Africa's dedicated intelligence platform for telecoms resellers, ICT distributors, and channel partners. She oversees the editorial team's AI-assisted content production pipeline, ensuring vendor news, market analysis, and regulatory updates are accurate, timely, and actionable for the SA telecoms channel community. With deep expertise in the South African telecoms reseller ecosystem, Mechelle directs coverage of vendor partner programmes, ICASA regulatory developments, wholesale market dynamics, and channel business strategy. She is responsible for maintaining Telecoms-Channel's editorial standards, fact-checking processes, and corrections policy.
