The Philippines telecommunications landscape features multiple prefixes across various providers. The 0919 What Network prefix belongs to Smart Communications, one of the country’s leading telecom providers. Understanding this prefix helps navigate the broader telecommunications ecosystem, whether you’re a new subscriber or considering switching networks.
This comprehensive guide explores everything you need to know about the 0919 prefix from its technical specifications and history to practical applications and troubleshooting. We’ll dive into Smart Communications’ infrastructure, compare it with other major providers like Globe and DITO, and offer expert advice on maximizing your experience with a 0919 number.
The 0919 Prefix: History and Allocation
Origins and Implementation

The 0919 prefix has been part of Smart Communications’ number allocation since the early 2000s. The National Telecommunications Commission (NTC) of the Philippines, which regulates the assignment of number prefixes to telecommunications companies, allocated this prefix to Smart as part of the country’s transition to an 11-digit mobile numbering plan.
According to telecommunications historian Manuel Cruz of the University of the Philippines, “The 0919 series was among the earliest premium prefixes allocated to Smart Communications, coinciding with their rapid expansion in the early 2000s.”
Technical Significance
From a technical standpoint, the prefix serves several important functions:
- Network Identification: The first four digits (0919) immediately identify the number as belonging to Smart Communications
- Routing Efficiency: Helps telecom systems route calls and messages to the correct network
- International Dialing: When calling from abroad, the 0919 prefix is replaced with the country code +63, becoming +63919
The Philippine telecommunications industry adopted the current mobile number format following the ITU-T E.164 international standard, which specifies that domestic mobile numbers should have a consistent format for easier recognition and processing.
Smart Communications: Company Profile
Market Position and Infrastructure
Founded in 1991, Smart Communications has grown to become one of the Philippines’ telecommunications giants, serving approximately 75.6 million subscribers as of December 2024. The company operates as a wholly-owned subsidiary of PLDT Inc., the country’s largest telecommunications and digital services provider.
Smart’s network infrastructure includes:
| Infrastructure Component | Coverage/Specification |
|---|---|
| 2G/3G/4G LTE Sites | 76,800+ nationwide |
| 5G Sites | 11,500+ sites across 4,100+ barangays |
| Fiber Footprint | 1,091,000 kilometers |
| Population Coverage | Approximately 97% |
Source: PLDT-Smart 2024 Annual Infrastructure Report
Service Portfolio
Smart Communications offers a diverse range of services under the 0919 and other prefixes:
- Smart Prepaid: Pay-as-you-go services with various load denominations
- Smart Postpaid: Contract-based plans with device bundling options
- Smart Bro: Home and mobile broadband services
- Smart Infinity: Premium postpaid plans with exclusive perks
- Smart Enterprise: Business solutions and corporate accounts
Complete Guide to Smart Communications Prefixes
Current Smart Prefix Allocation
The 0919 prefix is just one of many number series allocated to Smart Communications. Here’s a comprehensive list of Smart’s current active prefixes:
Smart Postpaid Prefixes:
- 0908, 0918, 0919, 0920, 0921, 0928, 0947, 0949, 0951, 0961, 0998, 0999
Smart Prepaid Prefixes:
- 0908, 0918, 0919, 0920, 0921, 0928, 0929, 0947, 0949, 0951, 0961, 0989, 0998, 0999
Smart Bro Prefixes:
- 0949
Identifying Smart Numbers
Beyond just recognizing the prefix, there are additional ways to identify a Smart Communications number:
- Network Prefix Check: Dial *143# to verify your current network
- Mobile Apps: Use the Smart app to confirm network details
- Third-Party Services: Websites like Network Identifier PH can identify carriers by prefix
According to Smart’s customer service department, “The 0919 prefix remains one of our most requested number series due to its early association with our premium services and its easy-to-remember sequence.”
Network Performance Analysis
Comparative Speed Analysis
Recent independent tests by Ookla’s Speedtest Intelligence reveal how Smart’s network performance compares to competitors:
| Provider | Average Download Speed | Average Upload Speed | Latency |
|---|---|---|---|
| Smart Communications | 52.8 Mbps | 11.2 Mbps | 32ms |
| Globe Telecom | 37.5 Mbps | 9.8 Mbps | 38ms |
| DITO Telecommunity | 45.1 Mbps | 10.4 Mbps | 35ms |
Source: Ookla Philippines Mobile Network Report, Q1 2025
Regional Coverage Performance
Smart’s network performance varies significantly by region, with metropolitan areas enjoying better coverage:
- Metro Manila: 99.8% coverage with average speeds of 74.3 Mbps
- Cebu and Davao: 98.5% coverage with average speeds of 56.1 Mbps
- Provincial Cities: 95.2% coverage with average speeds of 48.9 Mbps
- Rural Areas: 87.3% coverage with average speeds of 31.7 Mbps
“The 0919 network, like all Smart prefixes, benefits from our continuous infrastructure investments,” notes Miguel Rodriguez, Smart Communications Network Operations Head. “We’ve increased our cell site density by 28% in the past year alone, which has improved both coverage and speed for all our subscribers.”
International Format: Understanding 63919
The International Dialing Code
When calling a 0919 number from outside the Philippines, the format changes:
- Domestic format: 0919-XXX-XXXX
- International format: +63919-XXX-XXXX
This conversion follows these rules:
- Remove the leading “0” from the domestic number
- Add the Philippines country code “+63” at the beginning
Common International Dialing Mistakes
Many users make these common errors when dealing with international formats:
- Double prefix error: Dialing +63 without removing the 0 (+630919…)
- Missing plus sign: Failing to include the “+” before the country code
- Country code confusion: Using incorrect country codes (e.g., +1 for USA)
According to telecommunications expert Dr. Angela Reyes of De La Salle University, “These formatting errors account for approximately 65% of failed international calls to Philippine mobile numbers.”
Smart Prepaid vs. Postpaid Plans for 0919 Numbers
Current Plan Comparison
Smart offers various plans for 0919 numbers, with significant differences between prepaid and postpaid options:
Prepaid Options (0919):
| Plan Name | Data Allocation | Call Minutes | Texts | Validity | Price (PHP) |
|---|---|---|---|---|---|
| Magic Data | 5GB | None | None | 7 days | ₱99 |
| All Data | 8GB | None | None | 30 days | ₱299 |
| All-in-One | 3GB | 100 mins | Unlimited | 30 days | ₱399 |
Postpaid Options (0919):
| Plan Name | Data Allocation | Call Minutes | Texts | Contract | Monthly Fee (PHP) |
|---|---|---|---|---|---|
| Smart Signature Lite | 5GB | Unlimited | Unlimited | 12 months | ₱999 |
| Smart Signature Plus | 15GB | Unlimited | Unlimited | 24 months | ₱1,999 |
| Smart Infinity Premium | Unlimited | Unlimited | Unlimited | 24 months | ₱3,500 |
“The 0919 prefix is available across all our plans with no additional charges,” confirms Sarah Domingo, Smart Product Marketing Manager. “Customers often request this prefix specifically due to its association with our network’s longevity and reliability.”
Mobile Number Portability and 0919
Keeping Your 0919 Number When Switching

Since the implementation of Mobile Number Portability (MNP) in 2021, subscribers can now keep their 0919 numbers even when switching to other providers like Globe or DITO.
The porting process involves:
- Securing an Unique Subscriber Code (USC) from your current provider
- Ensuring zero outstanding balance
- Submitting the porting request to your new provider
- Waiting for the processing (typically 24-48 hours)
Portability Statistics
According to the Telecommunications Connectivity Forum (TCF), approximately 3.2 million Filipinos have utilized MNP services since its launch, with interesting patterns regarding 0919 numbers:
- 18% of all porting requests involve 0919 numbers
- 64% of successful 0919 ports are from Smart to Globe
- 27% are from Smart to DITO
- 9% are ports back to Smart after leaving
“The emotional attachment to one’s mobile number, especially legacy prefixes like 0919, is significant,” explains telecommunications sociologist Dr. Maria Santos. “Many users have had these numbers for over a decade, making them part of their digital identity.”
How 0919 Compares to Other Network Prefixes
Cross-Network Analysis
Performance comparison between major network prefixes shows some interesting variations:
| Network Prefix | Provider | Avg. Call Drop Rate | Network Congestion Score | Customer Satisfaction |
|---|---|---|---|---|
| 0919 | Smart | 1.2% | Medium | 4.1/5 |
| 0917 | Globe | 1.5% | High | 3.9/5 |
| 0895 | DITO | 2.1% | Low | 3.8/5 |
| 0922 | Sun (Smart) | 1.4% | Medium | 3.7/5 |
Source: Philippines Telecommunications Consumer Report 2025
User Experience Testimonials
“I’ve had my 0919 number since college in 2008, and it’s followed me through three jobs and two marriages,” shares business owner Marco Reyes. “The network has definitely improved over the years, especially with data speeds in Metro Manila.”
Meanwhile, IT professional Diana Tan notes, “I switched from 0919 to a DITO number last year but ended up porting back to Smart. The data speeds were comparable, but Smart’s coverage in provincial areas where my family lives was significantly better.”
Troubleshooting 0919 Connection Issues
Common Network Problems
Users of 0919 numbers occasionally encounter these issues:
- Signal Fluctuations: Especially in high-rise buildings or rural areas
- Data Speed Throttling: After exceeding fair usage policies
- SMS Delivery Delays: During network congestion periods
- Call Quality Issues: In areas with limited 4G/5G coverage
Expert Solutions
Technical support specialist Ricardo Fernandez offers these troubleshooting steps:
- Network Mode Selection:
Settings > Connections > Mobile Networks > Network Mode > Set to 4G/5G Auto - APN Verification: Ensure your Access Point Name settings match Smart’s recommended configuration:
- Name: Smart Internet
- APN: internet
- Proxy: Not set
- Port: Not set
- Username: Not set
- Password: Not set
- Server: Not set
- MMSC: http://10.102.61.238:8002
- MMS Proxy: 10.102.61.46
- MMS Port: 8080
- MCC: 515
- MNC: 03
- Authentication Type: None
- APN Type: default,supl,mms
- Signal Boosting:
- Use WiFi calling when available
- Consider a network signal booster for remote locations
- Update your device firmware regularly
Future of Mobile Networks in the Philippines

Smart’s 5G Expansion for 0919 Users
Smart Communications has outlined an ambitious roadmap for their networks, including dedicated improvements for legacy prefixes like 0919:
- 5G Network Expansion: Targeting 95% population coverage by 2026
- Cloud-Native Infrastructure: Transitioning to more resilient, software-defined networks
- Spectrum Efficiency: Implementing advanced MIMO technology to improve capacity without new frequency allocations
Upcoming Prefix Allocations
The NTC has announced plans to release new prefix blocks to accommodate growing subscriber numbers:
- Smart will receive the 0974, 0975, and 0976 blocks
- Globe will receive the 0977, 0978, and 0979 blocks
- DITO will receive the 0980, 0981, and 0982 blocks
“Legacy prefixes like 0919 will continue to operate indefinitely,” confirms NTC Commissioner Antonio Santos. “These established number series remain vital components of our national telecommunications architecture.”
FAQs About 0919 What Network
1. What network is 0919?
0919 is a mobile number prefix under Smart Communications. It’s been part of Smart’s allocation since the early 2000s.
2. Can I keep my 0919 number if I switch to Globe or DITO?
Yes, Mobile Number Portability (MNP) allows you to retain your 0919 number when switching networks.
3. Is 0919 a prepaid or postpaid number?
0919 is used for both Smart Prepaid and Postpaid services, including Smart Bro and Smart Infinity.
4. How do I know if a number is Smart?
Check the prefix or dial *143#, or use Smart’s mobile app for confirmation.
5. How do I dial a 0919 number from abroad?
Replace the “0” with “+63”, so dial +63919 followed by the 7-digit number.
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Conclusion and Recommendations
The 0919 mobile network prefix represents more than just a series of digits it’s a testament to Smart Communications’ enduring presence in the Philippines telecommunications sector. With robust infrastructure, competitive plans, and ongoing technological advancements, 0919 numbers continue to offer reliable service for millions of Filipinos.
For current and prospective 0919 users, consider these recommendations:
- Evaluate your usage patterns to select the most appropriate plan
- Take advantage of network-specific promos often available exclusively to Smart subscribers
- Use the mobile number portability system if you need to switch providers but want to retain your familiar 0919 number
- Keep your device updated to benefit from the latest network technologies and features
- Follow Smart’s official channels for announcements about network upgrades in your area
Whether you’re a long-time 0919 user or considering joining Smart’s network, understanding the technical aspects, performance metrics, and available services will help you maximize your telecommunications experience.

Jennifer Smith is a passionate technology enthusiast with a deep focus on the digital landscape of the Philippines. With years of experience in the telecommunications and networking industry, she brings expert knowledge and practical insights to her writing. As the driving force behind Sim GuidesPh, Jennifer is dedicated to helping readers understand the complexities of the Philippine network landscape. Whether it’s exploring mobile networks, internet service providers, or the latest technological trends, Jennifer’s detailed guides aim to keep Filipinos informed and connected in an ever-changing digital world.



