Get An International Phone Number

What Is the International Phone Number Format?

The international phone number format is a standardized way to reliably dial international calls from anywhere. The most standard format used across the globe is E.164 format, established by ITU, i.e., International Telecommunication Union. The right combination of dialing prefixes, leading zeros, and the plus sign ensures your call reaches the correct country. Below are the steps that you must follow when dialing an international phone number:

• Step 1: Start by dialing “+” (preferred) or the “country exit code”. (Country exit code is also known as international access code.)
• Step 2: Then the “country code” (Each country has its own country code, also known as the international dialing code.)
• Step 3: After that, add the “area/network/city code”
• Step 4: And in the end, enter the “subscriber number”

For example, when calling the UK mobile phone numbers in international format, dial

[+] or [country exit code], [country code: 44], [area/network/city code: 20], and [UK number: 1234 5678]: +44 20 1234 5678.

Similarly, when calling the US mobile phone numbers in international format, dial

[+] or [country exit code], [country code: 1], [area/network/city code: 202 (Washington)], and [US number: 123 3344 5678]: +1 202 344 5678

Note: The maximum character limit is “15 digits” when you dial an international phone number. Also, omit the use of symbols and spaces.

Check Dialing Sequence

Dialing the right format and in the right sequence is very important. One misplaced number can hold the potential to block the entire call. So, make it a habit to check the sequence and all the international calling codes thoroughly before getting through with the call. Ensure you know and enter the correct country exit code, area code/network code, and number.

Confirm Current Area Codes

Area codes change more often than you think. If your call isn’t going through, the destination number may be using an outdated or reassigned code. Compare it with the latest numbering plan for that country. Just updating the area code can instantly fix the issue.

Check Plan Limitations

The numbers or the sequence in which you dial the number is not always the issue. Sometimes it’s your calling plan causing the trouble. Specific countries, premium regions, or international toll-free numbers can be blocked by carriers. Review your plan and enable global calling to restore international connectivity.

Digital Alternative (WhatsApp, Zoom)

When international calling feels tough, you can switch to digital platforms such as WhatsApp or Zoom. These apps let you connect globally without worrying about dialing formats, carrier restrictions, or international charges. However, due to certain limitations, they cannot serve as a full-fledged alternative for official international phone calls.

Data Encryption Standards

CallHippo uses end-to-end encryption to shield conversations and metadata. This ensures sensitive customer information (personal details, contact details, etc.) stays protected. No unauthorized access and no exposure risks — you can stay worry-free.

Call Recording Compliance by Region

Different countries follow different recording laws. Most countries require single-party consent, while others insist on dual consent. With CallHippo, you can configure rules automatically so every recording stays legally compliant.

GDPR and Global Data Privacy Requirements

International numbers must comply with strict policies on data storage, retention, and access. CallHippo helps you manage permissions and meet global privacy norms with zero confusion. CallHippo is also HIPAA and GDPR compliant.

Fraud Prevention & Number Verification

Advanced verification checks block suspicious traffic, mask identity theft attempts, and prevent spoofing. This keeps your international communication legitimate, traceable, and fraud-proof.

Carrier-Level Security Protocols

Partner with carriers that use hardened international networks, firewalls, and intrusion detection systems. As a result, you get stable, secure, telecom-grade routing for every single call.

Spam and Robocall Protection Measures

International numbers use filtering systems to detect spam patterns and stop robocalls before they reach your customers. Your business stays credible, and your callers enjoy a clean, trustworthy line.

Eligibility Requirements for Number Porting

Not every number can be ported across borders; its eligibility depends on multiple factors. Factors such as,

• Current carrier
• Number type
• Country regulations

You must carry out a quick compatibility check. This will ensure your existing number’s safe transition to international routing.

Documents Needed for Porting

Most providers require a Letter of Authorization (LOA). For that, you can offer a recent phone bill or proof of ownership. Accurate document submission can make the verification process easy and quick.

Porting Timelines and Expected Delays

Typical porting takes anywhere from a few days to a couple of weeks. It differs depending on different regions and carrier responsiveness, etc. Delays usually arise from document discrepancies, regulatory checks, or country-specific approval steps.

Common Porting Restrictions by International Country

Some countries limit porting for toll-free, mobile, or government-issued numbers, while some other countries impose extra identity checks. Some totally prohibit cross-border number transfers. Knowing these limitations firsthand prevents process hiccups.

Post-porting Setup & Testing Steps

Once the porting is completed, you can start to configure call flows, voicemail, routing rules, and failovers. Run test making international calls for inbound and outbound to confirm stability and call quality. This final check ensures your new international number works smoothly from day one.