In January 2023, a major internet outage across multiple US carriers simultaneously disrupted 911 services, hospital communications, banking, navigation apps, and public transport systems across wide geographic areas. The event lasted hours. A more severe or prolonged outage would expose a critical vulnerability that most people do not appreciate until they experience it: modern life is so deeply woven with internet connectivity that its loss cascades immediately and unpredictably into almost every other system. Knowing how to communicate, navigate, find information, and access emergency services without internet is a foundational resilience skill — and one that most people have not practised since the 1990s.
Understanding What Fails Without the Internet
Direct Losses
- Social media, messaging apps, email
- Internet radio, streaming services
- Online news
- Cloud-based storage and apps
- Smart home devices
- VoIP calls (WhatsApp calls, Skype, FaceTime — any call over data)
Indirect Cascading Failures
These are less obvious but equally impactful:
- GPS navigation — phones still receive GPS satellite signals without internet, but map tiles, real-time traffic, and turn-by-turn updates from cloud servers may fail without offline maps.
- Payment systems — many EFTPOS/contactless payment systems require internet. Cash is the only reliable fallback.
- ATMs — most ATMs require internet to authorise transactions.
- Public transport — timetable apps, real-time tracking, and sometimes even ticketing systems go offline.
- Emergency services — some regions use internet-connected 911/999/000 infrastructure. Text-to-911 systems may fail.
- Hospitals and medical devices — internet-connected monitoring systems and prescription systems.
- News and information — the default assumption that you can look anything up immediately is broken.
When the internet is down, reliable information is your most critical resource. Misinformation spreads rapidly in outages because people fill the information vacuum with rumour.
Battery or hand-crank AM/FM radio is the single most important communications device during any infrastructure emergency.
Why radio works when everything else fails:
- Broadcast radio towers operate on emergency backup power.
- No internet required — radio waves travel through air directly.
- Information reaches everyone simultaneously.
- Cannot be jammed or congested by high demand.
- A hand-crank emergency radio requires no batteries.
What to listen for:
- National emergency broadcast system announcements
- Local news and emergency management updates
- Weather warnings (NOAA Weather Radio in the US; similar services in other countries)
- Shelter-in-place or evacuation orders
- Water and food safety advisories
- Information on service restoration timelines
Recommended radio types:
- AM/FM/SW (shortwave) — shortwave provides international broadcasts and long-range coverage if local stations are off-air
- NOAA Weather Radio receiver (US)
- DAB digital radio (UK/Europe) — note: DAB also requires transmitter power; have AM/FM as backup
Television (Broadcast)
Over-the-air TV broadcast (digital terrestrial, not cable or satellite internet) continues to function during internet outages if your region has terrestrial broadcast towers.
- In the US: a simple rooftop antenna receives major network broadcasts.
- In the UK: Freeview (DVB-T) requires only an aerial.
- Check whether your TV has a built-in tuner for free-to-air broadcast — many smart TVs can still receive broadcast signals independently of their internet functionality.
- A small battery-powered portable TV is valuable for extended outages.
Two-Way Radios
Family Radio Service (FRS) / PMR446 walkie-talkies:
- Range: typically 0.5–3 km in urban areas (more in open terrain).
- No licence required in most countries.
- Battery-powered, simple to use.
- Essential for maintaining contact with family members in the immediate area.
- Pre-designate channels with household members before an emergency.
Citizens Band (CB) Radio:
- AM/SSB short-range (generally 5–30 km for ground wave).
- No licence required in most countries.
- Active CB communities still exist in many regions; truck drivers and rural communities often use CB as a primary communications tool.
- Channel 9 is designated for emergency communications in most countries.
Amateur (Ham) Radio:
- Requires a licence (Technician class in the US is entry-level; Foundation licence in the UK).
- Provides communication from a few kilometres to global distances depending on equipment and licence class.
- Amateur Radio Emergency Service (ARES) and RACES (Radio Amateur Civil Emergency Service) are organised volunteer networks that supplement emergency communications.
- If you or a family member obtains a licence, a handheld VHF/UHF radio (HT) provides local communication; an HF station provides long-range capability.
Satellite Communication
- Satellite phone — works entirely independently of terrestrial infrastructure. Expensive to own and operate; useful for those in remote areas or who need guaranteed communication.
- Garmin inReach / SPOT devices — two-way satellite text messaging. Useful for remote communication; limited message capability.
- Starlink — requires the user's own dish but is not dependent on terrestrial internet infrastructure. Effective backup for areas within coverage.
⚠️ Do not rely on cellular (mobile) networks during major emergencies. Networks become rapidly congested as millions of people try to use them simultaneously. Text messages are more likely to get through than voice calls because they use less bandwidth. Send a text before attempting a voice call.
Maintaining Contact With Family
Pre-Planning Is Everything
The time to plan for communications failure is before it happens. Establish these now:
-
Out-of-area contact person. Designate someone outside your region (different city or state) as your family's single point of contact. Local calls may be more congested than long-distance; all family members check in with this one person.
-
Physical meeting places. Designate two locations:
- A local meeting point (e.g., your home, or a neighbour's home if yours is inaccessible)
- A regional meeting point further away (e.g., a relative's address in another part of your city or state)
- Every family member knows both addresses.
-
Check-in schedule. Agree on a time and method: "If we can't reach each other, check at [location] at 6pm" or "try to call [out-of-area contact] every 6 hours."
-
Written emergency contacts card. Keep a physical laminated card in your wallet and in your child's school bag with phone numbers and meeting locations. Never rely on phone memory alone.
-
School and work protocols. Know your children's school emergency reunification plan. Know your workplace emergency communication procedures.
During an Outage
- Text before you call — texts queue and deliver when bandwidth frees up.
- Use landline telephones if available — basic POTS (plain old telephone service) often continues when mobile networks fail or are congested. However, VoIP-based "home phones" (which use your internet connection) will also fail.
- Wi-Fi calling may remain available if local Wi-Fi infrastructure (router with battery backup) is working even without wider internet routing.
- Social media as last resort — if internet is partially available, posting a status on social media allows many people to know you are safe with one message.
Navigating Without Internet
Offline Maps
Download offline maps before an emergency. Several apps offer this:
- Google Maps: Download areas for offline use (Settings → Offline Maps). Note: offline turn-by-turn navigation works; real-time traffic does not.
- OsmAnd: Free, open-source, with comprehensive offline maps. Highly recommended.
- Maps.me: Offline maps with POIs (points of interest).
- Gaia GPS / Topo Maps: For wilderness navigation.
Download maps for your region, your evacuation route areas, and any places you commonly travel to. Map downloads can be several gigabytes — do this on Wi-Fi.
Paper Maps and Atlases
- Keep a physical road map or atlas in your vehicle.
- Keep a detailed street map of your local area at home.
- Practise basic map reading — it is a skill that must be maintained.
Compass Navigation
A basic baseplate compass and topographic map provide navigation capability independent of all technology. Orienteering training (widely available) teaches this skill effectively.
Accessing Emergency Services Without Internet
Mobile Calls to Emergency Services
- In most countries, calls to emergency services (911, 999, 000, 112) are given priority on cellular networks.
- Even without a SIM card, mobile phones can dial emergency numbers in most regions.
- If your mobile has no signal, moving to a higher point (roof, hill) or to an open area may improve signal.
Text to Emergency Services
In countries with text-to-911 or equivalent (US, UK, some others), text messages can reach emergency services. This is useful when voice calls cannot connect or when a voice call is unsafe (e.g., hiding from a threat).
Check in advance whether your jurisdiction supports text-to-emergency services.
Satellite Emergency Beacons (PLBs/EPIRBs)
Personal Locator Beacons (PLBs) and Emergency Position-Indicating Radio Beacons (EPIRBs) transmit distress signals directly to the COSPAS-SARSAT satellite system and are monitored by national rescue coordination centres. They work anywhere on Earth with no infrastructure dependency. Activating a PLB triggers a search and rescue response.
In a community experiencing an internet outage:
- Physical notice boards — libraries, community centres, churches, and schools often operate physical community notice boards.
- Neighbours — direct verbal communication about conditions, resource availability, and safety.
- Printed notices — if you have battery power and a printer, print and distribute critical information in your building or street.
- Ham radio nets — local amateur radio nets activate during emergencies and provide community-wide information exchange.
Quick Reference
| Need | Primary Tool | Backup |
|---|
| Emergency information | AM/FM battery/crank radio | Over-air TV broadcast |
| Local family contact | FRS/PMR446 walkie-talkie | Pre-agreed meeting location |
| Long-range family contact | Landline or text | Out-of-area contact person |
| Navigation | Offline maps (phone) | Paper road map + compass |
| Emergency services | Mobile call (priority) | PLB/EPIRB for remote |
| Community updates | Local radio broadcast | Physical notice board, word of mouth |
| Payments | Cash | — |
This article provides preparedness guidance for communications disruptions. Emergency service access procedures vary by country and region — verify the specific numbers and capabilities in your jurisdiction before an emergency occurs.