Oceania
SIP Trunk New Zealand — +64 Termination & DID Numbers
New Zealand is often the first market of the business day, sitting 12 to 13 hours ahead of UTC, which is useful for follow-the-sun support. Freephone uses both 0800 and 0508, and Auckland landlines use area code 09.
Overview
Routing calls to New Zealand
Traffic to New Zealand leaves our SBCs on more than one upstream carrier per prefix. If a leg toward Auckland or Wellington starts returning 503s or long post-dial delay, the next attempt goes to another carrier automatically. Calls to Christchurch, Hamilton and Dunedin follow the same failover logic.
Inside the country, numbers are dialled with a 0 trunk prefix. Strip it before you send the call, and send 64 followed by the national number. On the rate sheet, New Zealand is split into geographic, national, mobile and toll-free prefixes, following the plan set by the national telecom regulator, so your LCR can tell a cheap fixed-line call from a pricier mobile one.
For inbound numbers in New Zealand, plan on paperwork: proof of address and company or identity documents are usually required before a DID goes live. Termination needs no documents beyond normal account checks.
What you get
What you get in New Zealand
One account and one balance, with the same SBCs for termination and inbound numbers.
CLI route tier
Caller ID delivered end to end on +64 calls. Use it for sales, support and any traffic where answer rates matter.Non-CLI route tier
A lower-cost tier where caller ID delivery is not guaranteed. Suitable for internal or transactional traffic that does not depend on the CLI.Number types
Geographic, National, Mobile, Toll-free. DID availability varies by range and city.Codecs
G.711a/u and G.729 on every route, G.722 and Opus where the far end supports them. T.38 for fax.Channels on demand
Concurrent call limits are set per account and raised as your traffic grows. No fixed channel bundles.Multi-carrier failover
Every +64 prefix is mapped to more than one carrier. Failed attempts move to the next one automatically.
Number formats
How to dial New Zealand from your PBX
Send E.164 digits. The sample number below shows the format only.
| Format | Example | Notes |
|---|---|---|
| International (E.164) | +64 9 123 4567 | How the number is written and stored. |
| Sent from your PBX | 6491234567 | E.164 digits with no plus, prefixed by your tech prefix if your account uses one. |
| With 00 exit code | 00 64 9 123 4567 | Accepted on the trunk. We normalise it to E.164. |
| National format | 09 123 4567 | Dialled inside New Zealand. Strip the trunk prefix before sending. |
Compliance
New Zealand rules to know
What applies before your first call or your first DID goes live.
Compliance box
- Regulator
- The national telecom regulator
- Caller ID
- A valid CLI that you are entitled to use is required on CLI routes. Spoofed or unallocated numbers are blocked.
- DID KYC
- Usually required
Rules change — our team confirms current requirements before activation.
Use cases
Who uses New Zealand routes
- 01
Trans-Tasman support desks covering New Zealand and Australia
- 02
0800 and 0508 freephone lines for national services
- 03
Agriculture and export businesses linking regional offices
Setup
Start calling New Zealand in 3 steps
- 01
Top up $200
Open a prepaid account and add balance by USDT (TRC20), BTC or card. - 02
Add your trunk
Whitelist your PBX IP or create digest credentials, then point your outbound route at our SBC. - 03
Dial +64
Send 64 + national number in E.164 and check the CDR for your first test call.
Further reading: CLI vs Non-CLI Routes: What Actually Changes for Your Calls
FAQ
New Zealand SIP trunk questions
What is the difference between 0800 and 0508?
Both are freephone ranges. 0508 was introduced as an alternative to 0800.
How are New Zealand mobiles dialled?
Drop the 0 and send 64 2x followed by the subscriber number.
Who regulates New Zealand telecoms?
The national telecom regulator. We confirm current requirements before activation.
Do NZ DIDs need documents?
Usually: a New Zealand address and company or identity details.
