1 network mappedeSIM Coverage in Cambodia: 1 Network Mapped (2026)
Overview
Cambodia Coverage Overview
1 carrier serves Cambodia. Provider routing determines your signal quality.
Provider-to-Carrier Routing
| Provider | Carrier Partner | Network Type | Pop. Coverage | Strength |
|---|---|---|---|---|
| HelloRoam | Metfone | 4G | 80-95% | Reliable 4G LTE coverage across populated areas |
| Airalo | Metfone | 4G | 80-95% | Reliable 4G LTE coverage across populated areas |
| Holafly | Metfone | 4G | 80-95% | Reliable 4G LTE coverage across populated areas |
| Nomad | Metfone | 4G | 80-95% | Reliable 4G LTE coverage across populated areas |
| Saily | Metfone | 4G | 80-95% | Reliable 4G LTE coverage across populated areas |
All Networks in Cambodia
Regional eSIM Alternative
Traveling beyond Cambodia? Regional eSIM bundles cover multiple countries on one plan. Cambodia single-country entry: $3.99 (1GB). Neighbor entry-level prices: Afghanistan: $8.10 (1GB); Armenia: $4.99 (1GB); Azerbaijan: $4.45 (1GB); Bangladesh: $3.49 (1GB). Buying individual plans for all 5 countries totals $25.02 minimum. HelloRoam, Airalo and Holafly sell multi-country bundles that put several destinations on one eSIM; Nomad and Saily sell single-country plans only. Bundle country lists differ, so check that Cambodia and the stops above are on the one you are offered, then price it against that $25.02 total.
Technology
Cambodia Network Technology
Regulatory Restrictions
SIM Registration: Passport required
Coverage data
Network Generations Across Cambodia Regions
How network coverage changes from urban centers to rural areas in Cambodia.
Coverage Comparison: Urban, Suburban, Rural
| Provider | Carrier | Urban | Suburban | Rural | Type |
|---|---|---|---|---|---|
| HelloRoam | Metfone | 4G LTE | 4G LTE | 4G LTE, 3G in gaps | 4G LTE |
| Airalo | Metfone | 4G LTE | 4G LTE | 4G LTE, 3G in gaps | 4G LTE |
| Holafly | Metfone | 4G LTE | 4G LTE | 4G LTE, 3G in gaps | 4G LTE |
| Nomad | Metfone | 4G LTE | 4G LTE | 4G LTE, 3G in gaps | 4G LTE |
| Saily | Metfone | 4G LTE | 4G LTE | 4G LTE, 3G in gaps | 4G LTE |
Peak vs Off-Peak Congestion
Every mobile network in Cambodia carries more traffic in the evening and over lunch, and commute hours crowd the towers near transit hubs. All five providers share those towers, so congestion hits them equally. Schedule large downloads and video calls outside those windows.
Indoor Signal Quality
Building penetration varies by carrier and frequency band in Cambodia. Low-band carriers (700 MHz) penetrate buildings effectively. High-band 5G (mmWave) requires line-of-sight and struggles indoors. Mid-band 4G LTE provides a balance of speed and indoor reach. Hotels, restaurants, and shopping centers typically maintain strong signal quality.
Throttling and Fair Use
Holafly unlimited plans in Cambodia run at full 4G LTE speed until the daily fair-use threshold. After the threshold, speeds reduce. Maps and messaging still work at throttled speeds. Video streaming and large file downloads do not. Fixed data plans from Airalo, Saily, and Nomad run at full speed until the data allowance is completely used, then stop entirely.
Rural coverage
eSIM Performance Outside Cambodia Cities
Rural Signal by Provider
| Provider | Carrier | Rural Footprint | Fallback | Advice |
|---|---|---|---|---|
| HelloRoam | Metfone | Moderate | 3G fallback available | Download offline maps before rural travel |
| Airalo | Metfone | Moderate | 3G fallback available | Download offline maps before rural travel |
| Holafly | Metfone | Moderate | 3G fallback available | Download offline maps before rural travel |
| Nomad | Metfone | Moderate | 3G fallback available | Download offline maps before rural travel |
| Saily | Metfone | Moderate | 3G fallback available | Download offline maps before rural travel |
Highway and Transit Routes
Coverage along major highways and rail routes in Cambodia is generally reliable on 4G LTE. Intermittent signal drops occur in mountainous terrain, tunnels, and remote stretches between cities. Cellcard maintains the most consistent transit coverage. Download offline maps and music before long-distance travel.
Scores
Cambodia Provider Coverage Scores
Rubric scores that apply to Cambodia. All five dimensions carry equal 20% weight.
Rubric Dimension Breakdown
| Dimension | Weight | HelloRoam | Airalo | Holafly | Nomad | Saily |
|---|---|---|---|---|---|---|
| Coverage Breadth0-5, our rubric | 20% | 4.5 | 4.9 | 4.3 | 3.9 | 4.0 |
| Pricing Tiers0-5, our rubric | 20% | 4.4 | 4.1 | 4.5 | 4.8 | 4.0 |
| Network Generation0-5, our rubric | 20% | 4.3 | 4.4 | 4.2 | 4.3 | 4.4 |
| App Features0-5, our rubric | 20% | 5.0 | 4.7 | 4.1 | 3.9 | 4.5 |
| Support Channels0-5, our rubric | 20% | 5.0 | 4.2 | 4.7 | 3.9 | 4.1 |
| Weighted total (0-5, our rubric) | 100% | 4.64 | 4.45 | 4.35 | 4.15 | 4.20 |
Provider Footprint Comparison
- HelloRoam:186+ countries. Wide footprint. Cambodia is covered.
- Airalo:200+ countries. Wide footprint. Cambodia is covered.
- Holafly:160+ countries. Wide footprint. Cambodia is covered.
- Nomad:200+ countries. Wide footprint. Cambodia is covered.
- Saily:200+ countries. Wide footprint. Cambodia is covered.
Advice
Cambodia eSIM Coverage Advice
Known Coverage Gaps
Metfone (Viettel) has widest coverage
Practical Advice for Cambodia
Install before departure
Download and install your eSIM profile while connected to WiFi at home. Network registration happens automatically upon landing.
Download offline maps
Save Google Maps or Apple Maps offline for Cambodia. Rural areas may have limited coverage. Offline maps work without data.
Choose the right tier
Light usage (maps, messaging): 1-3 GB. Moderate (social media, email): 5-10 GB. Heavy (streaming, video calls): 10GB+ or unlimited.
Check refund policies
All 5 providers offer refund windows (14-day to 180-day). If coverage in Cambodia does not meet expectations, contact support within the refund period.
Airport Connectivity
All 5 providers connect at Phnom Penh (PNH) / Siem Reap (SAI) upon landing. Activate your eSIM after clearing customs. Network registration takes 2-3 minutes. Phnom Penh (PNH) / Siem Reap (SAI) has 4G LTE coverage from Cellcard. Install the eSIM profile before departure for immediate connectivity.
Coverage depth
City and Rural Connectivity in Cambodia
Cambodia's 1 mobile operator cover urban zones uniformly. Rural coverage follows a different pattern.
Urban coverage: 90-97% population coverage across Metfone. All 5 providers connect to 4G LTE networks in Cambodia's cities. Hotels, airports, transit hubs, and tourist areas have consistent signal from every carrier.
Rural coverage: 55-80%. Metfone is the sole operator. Coverage quality is identical across all 5 providers because all route through the same carrier. Signal drops occur in the same locations regardless of which provider you choose. Terrain varies. Coverage follows population density. Signal weakens with distance from cell towers. Urban 4G LTE runs at the carrier's advertised rate. Rural areas fall back to a lower generation or lose signal between towers. Cambodia's geography: mixed geography. Urban density: moderate.
Carrier routing
Cambodia Provider-to-Carrier Routing Analysis
Carrier partnerships for Cambodia eSIMs: who connects through whom, and what that means for signal quality.
HelloRoam: Metfone (4G LTE). HelloRoam connects through the sole operator in Cambodia. Estimated reach: 70-85% population coverage. 4G LTE delivers reliable connectivity for all travel tasks. Airalo: Metfone (4G LTE). Airalo connects through the sole operator in Cambodia. Estimated reach: 70-85% population coverage. 4G LTE delivers reliable connectivity for all travel tasks. Holafly: Metfone (4G LTE). Holafly connects through the sole operator in Cambodia. Estimated reach: 70-85% population coverage. 4G LTE delivers reliable connectivity for all travel tasks. Nomad: Metfone (4G LTE). Nomad connects through the sole operator in Cambodia. Estimated reach: 70-85% population coverage. 4G LTE delivers reliable connectivity for all travel tasks. Saily: Metfone (4G LTE). Saily connects through the sole operator in Cambodia. Estimated reach: 70-85% population coverage. 4G LTE delivers reliable connectivity for all travel tasks.
All 5 providers partner with Metfone. Partnership quality is equivalent. Differentiation happens in pricing, app, and support. eSIM providers operate as MVNOs (virtual operators) on these carriers. They access the same towers and frequencies as direct subscribers but may have lower network priority during congestion.
Signal quality
Signal Strength Expectations Across Cambodia
Signal strength in Cambodia follows the geography. mixed geography. Tower density tracks population centers.
City centers: strong signal, with full 4G LTE access from all carriers. Streaming, calls, and navigation work without interruption. Suburban areas: moderate signal, consistent along main roads. Navigation and messaging are reliable. Minor dead spots sit near terrain features. Rural areas: weak signal that drops between towers. Basic connectivity for messaging. Download maps offline before leaving cities. Terrain varies. Coverage follows population density.
Single operator: signal strength is uniform for all providers. Dead zones affect everyone equally.
Indoor coverage
Cambodia Indoor Signal: Hotels, Transit, and Restaurants
Outdoor coverage in Cambodia is straightforward. Indoor coverage depends on construction, floor level, and carrier frequency.
Outdoor: 4G LTE signal from Metfone covers streets, plazas, and open areas reliably. Full speed access in line-of-sight to cell towers. Navigation, ride-hailing, and social media work without issues outdoors.
Indoor: 4G LTE penetrates most buildings at reduced speed. Expect 40-70% of outdoor signal strength inside standard construction. Ground floors and window-adjacent areas get the strongest indoor signal. Basements and interior rooms may drop to 2G/3G fallback. WiFi availability in Cambodia: good. Hotels, cafes, and tourist venues typically offer free WiFi. Use WiFi for heavy data tasks indoors and reserve eSIM data for outdoor navigation and messaging.
Reliability
Cambodia eSIM Reliability by Travel Scenario
Will your eSIM hold signal during a Cambodia road trip? On a train? While sightseeing outdoors? The reliability profile varies.
Hotel and cafe use: high reliability. Stationary connections maintain stable signal. 4G LTE delivers consistent speeds for all tasks. WiFi supplementation reduces eSIM load. Sightseeing on foot: reliable in urban areas and major tourist sites. Signal handoff between towers is smooth at walking speed. Navigation apps maintain lock. Metfone covers standard tourist routes. Driving and road trips: Reliable on main highways. Secondary roads between cities may have coverage gaps of 1-5 minutes. Terrain varies. Coverage follows population density. Trains and buses: coverage follows the route. Urban transit is reliable. Inter-city routes may have periodic gaps in mountainous or rural sections.
All 5 providers share Metfone's infrastructure. Reliability is identical across providers.
Dead zones
Known Coverage Gaps in Cambodia
Before traveling Cambodia's rural areas, understand where signal disappears. The gaps follow the terrain.
Tier 2 market: gaps appear between cities and in rural regions. Metfone concentrates infrastructure along main transport corridors. Secondary roads between towns are the most common gap location. Expect 5-15 minute signal drops on rural highways. Terrain varies. Coverage follows population density. Tourist areas outside capitals may have weaker signal. Verify coverage for your specific itinerary before selecting a provider. Metfone (Viettel) has widest coverage
Preparation: download offline maps (Google Maps, Maps.me) before reaching gap areas. Enable WiFi calling on your device for voice service where eSIM signal drops. Choose a larger data tier to avoid mid-trip top-ups when coverage returns after a gap.
Geography
How Cambodia's Geography Affects eSIM Signal
Cambodia's terrain directly affects where mobile signal reaches and where it does not. Geography shapes coverage more than carrier investment in many areas.
Cambodia's terrain: mixed geography. Terrain varies. Coverage follows population density. Urban density: moderate. Metfone deploys towers along population centers and transport corridors.
Mixed terrain creates variable coverage. Urban corridors have full 4G LTE access. Rural areas depend on tower proximity and elevation relative to surrounding terrain. Terrain obstruction costs signal. Urban 4G LTE runs at the carrier's advertised rate, while obstructed valleys and canyons drop to a lower generation or lose signal.
Summary
Cambodia eSIM Coverage: Key Takeaways
Cambodia coverage summary: 1 carrier, 4G LTE infrastructure, 4 eSIM providers. Cambodia is a Tier 2 mobile market. Cities have full coverage. Rural areas have gaps, especially between towns and in mountainous terrain. Plans start at $3.99 (1GB). Holafly unlimited: $3.66/day. 1 operator (Metfone) provide 4G LTE access. 5G: none coverage. All 5 providers route through Metfone. Coverage is identical. Choose by pricing and features.
At a glance
Cambodia Coverage Comparison Summary
FAQ
Cambodia Coverage Questions
How many mobile networks does Cambodia have?
How many mobile networks does Cambodia have?
Cambodia has 1 mobile network: Metfone. eSIM providers route through these carriers for coverage. Cellcard offers the widest coverage footprint in Cambodia.
Which carrier does Airalo use in Cambodia?
Which carrier does Airalo use in Cambodia?
Airalo routes through Metfone in Cambodia, providing 4G LTE coverage across urban areas. Metfone covers an estimated 80-95% of the population. Airalo covers 200+ countries total.
Is eSIM coverage good in rural Cambodia?
Is eSIM coverage good in rural Cambodia?
Urban coverage is strong across all providers in Cambodia. Rural areas depend on carrier partner. Cellcard has the widest rural footprint. Remote areas may drop to 3G or lose signal. Note: Metfone (Viettel) has widest coverage
Which eSIM provider has the widest coverage in Cambodia?
Which eSIM provider has the widest coverage in Cambodia?
Airalo scores 4.9/5.0 on coverage in our matrix. Routes through Metfone with 4G LTE in Cambodia. Covers 200+ destinations worldwide.
What network will my eSIM use in Cambodia?
What network will my eSIM use in Cambodia?
Plans for Cambodia run on 4G LTE through Metfone. Airalo scores 4.4/5.0 on the network dimension of our rubric. We publish no speed measurements: every provider here rides the same local towers, so the network is not what separates them.
Does Holafly throttle speeds in Cambodia?
Does Holafly throttle speeds in Cambodia?
Holafly unlimited plans in Cambodia run at full 4G LTE speed until the daily fair-use threshold. After the threshold, speeds reduce. Maps and messaging still function. Streaming and large downloads do not. Fixed data plans from Airalo, Saily, and Nomad run at full speed until data is depleted.
Will my eSIM work at Phnom Penh (PNH) / Siem Reap (SAI)?
Will my eSIM work at Phnom Penh (PNH) / Siem Reap (SAI)?
All 5 providers connect at Phnom Penh (PNH) / Siem Reap (SAI) upon landing. Activate your eSIM after clearing customs. Network registration takes 2-3 minutes. Phnom Penh (PNH) / Siem Reap (SAI) has 4G LTE coverage from Cellcard. Install the eSIM profile before departure for immediate connectivity.
How do I check eSIM coverage quality before buying?
How do I check eSIM coverage quality before buying?
Check the carrier routing table above to see which network each provider uses in Cambodia. Cellcard provides the widest coverage. Review the network types (5G/4G/3G) and coverage gap analysis. All providers offer refund policies (14-day to 180-day) if coverage does not meet expectations.
Cambodia coverage, checked
1 network. 4G LTE speeds. Compare all providers.