Latin America IoT SIM Deployment Guide: Brazil's Permanent Roaming Ban, Multi-IMSI Workarounds, and Compliance Across Mercosur Markets
June 2, 2026 · 11 min read · Regional Info
Brazil bans foreign SIMs after 90 days. No exceptions. Mexico requires in-person SIM registration. The rest of LATAM is permissive —for now. This maps the compliance architecture: multi-IMSI with Claro/TIM/Vivo profiles, the Brazil premium, and control boundaries that matter more than per-GB pricing.
TL;DR: Brazil is the toughest IoT SIM market in the Western Hemisphere. ANATEL bans permanent roaming outright —foreign SIMs get blocked after 90 days. Mexico demands in-person SIM registration for enterprise deployments. Colombia, Argentina, Chile, and Peru are broadly permissive. The answer in every case: multi-IMSI eSIM with local profile localization. One SIM, pre-loaded with Claro, TIM, Vivo, and Telcel native profiles, switches to local network status when crossing a border. No roaming markup. No regulatory exposure.
The Americas: One Continent, Two Regulatory Worlds
North of the Rio Grande, IoT connectivity moves freely: no permanent roaming restrictions, no SIM registration mandates for M2M, no IoT-specific licensing. One SIM SKU covers all 50 US states and every Canadian province.
South of the Rio Grande, the picture inverts. Brazil —roughly 40% of Latin America's IoT market —enforces the strictest permanent roaming prohibition in the Americas. ANATEL (Agência Nacional de Telecomunicações) reinforced its position in 2025: foreign SIMs operating in Brazil for more than 90 days must switch to a local network or face disconnection. No grace period, no waiver, no enterprise exemption.
Mexico occupies a middle ground: roaming is technically permitted, but the IFT (Instituto Federal de Telecomunicaciones) reintroduced in-person identity verification for enterprise SIM registration —a logistical burden that makes offshore SIM models expensive even where legally allowed.
The trend line points toward tightening, not loosening. Enterprises with 5+ year Latin American deployments should architect for regulatory convergence, not today's permissive patchwork.
Source: Cullen International, "IoT regulation in the Americas diverges on roaming, authorisation and SIM registration", January 2026. Available at https://www.cullen-international.com/news/2026/02/IoT-regulation-in-the-Americas-diverges-on-roaming--authorisation-and-SIM-registration.html
Brazil: ANATEL's 90-Day Rule and the Multi-IMSI Answer
ANATEL's ban is not new, but 2025 enforcement changed the game. IoT devices are now explicitly subject to the same restrictions as consumer handsets —closing an ambiguity providers had exploited.
Any IoT deployment in Brazil exceeding 90 days must use a SIM with a Brazilian-issued IMSI. Two paths:
1. Procure local SIMs from Claro, TIM, or Vivo directly —requires local entity, contract negotiation in Portuguese, and local tax registration (CNPJ).
2. Deploy a multi-IMSI eSIM with a Claro/TIM/Vivo IMSI pre-loaded. When the device powers up in Brazil, the SIM detects the local network and activates the Brazilian profile. To ANATEL, the device is a native subscriber —not a roamer.
Path 2 avoids the local entity requirement. The SIM carries 3-10 IMSI profiles; the Brazilian one activates within 15-30 seconds of network detection. Data exits through a local PGW in São Paulo or Rio, satisfying LGPD (Brazilian GDPR) expectations and cutting cloud latency by 100-150ms versus routing through Miami.
Source: eSeYE, "Fixing the Permanent Roaming Problem for Global IoT", May 2026. Available at https://www.eseye.com/resources/blogs/fixing-permanent-roaming-global-iot/
Mexico: SIM Registration, Not Roaming, Is the Real Barrier
Mexico permits permanent roaming —technically easier than Brazil. But in-person SIM registration for enterprise deployments creates an operational bottleneck that can be more expensive than Brazil's ban.
For 1,000 IoT devices: each SIM must be registered to a Mexican tax ID (RFC) and linked to a verified individual representative. This cannot be done remotely at scale —it requires physical presence at a Telcel or Movistar point of sale, or a registered distributor with IFT authorization for bulk processing. Budget 2-4 weeks for this.
Carrier landscape: Telcel (América Móvil) dominates at approximately 65% market share, followed by Movistar (Telefónica) and AT&T Mexico. Telcel's LTE-M covers all major cities and industrial corridors; NB-IoT is deployed selectively in Mexico City, Monterrey, and Guadalajara.
Regional Carrier & Regulatory Matrix
| Country | Roaming | SIM Registration | Key MNOs | LPWA Status |
|---|---|---|---|---|
| --------- | --------- | ------------------ | ---------- | ------------- |
| Brazil | Banned after 90d | Standard M2M | Claro, TIM, Vivo | LTE-M active; NB-IoT early |
| Mexico | Permitted | In-person required | Telcel, Movistar, AT&T MX | LTE-M (Telcel); NB-IoT selective |
| Colombia | Permitted | Standard rules | Claro, Movistar, Tigo | LTE-M growing; NB-IoT early |
| Argentina | Permitted | Standard rules | Movistar, Claro, Personal | LTE-M (Movistar) |
| Chile | Permitted | Standard rules | Entel, Movistar, Claro | Both LTE-M and NB-IoT |
| Peru | Permitted | Standard rules | Claro, Movistar, Entel | LTE-M growing |
The Brazil premium: what you'll actually pay —and why it's not just the per-GB rate
The catalogue rate of EUR 0.7344/GB pooled covers Colombia, Argentina, Chile, and Peru without additional overhead.
Project pricing becomes necessary when:
1. Brazil is in the deployment —multi-IMSI eSIM with Brazilian IMSI requires pre-negotiated operator agreements. Not a catalogue SKU.
2. Mexico deployments exceed 500 devices —in-person registration creates compliance costs per device.
3. Cross-Mercosur corridors cross 3+ countries including Brazil —profile coordination across Claro (10+ markets), TIM (Brazil/Argentina), and Telefónica (8 markets) justifies a project quote with per-country PGW breakout.
The crossover is triggered by Brazil's presence in the map, not volume. Brazil is 40% of LATAM IoT and anchors most regional rollouts.
Who controls what —and why it matters more in Brazil than anywhere else
Four questions that matter more than price per GB:
1. Who holds SM-DP+ keys for Brazilian profile swaps? If only the MNO holds them, carrier switching in Brazil requires renegotiation —and Claro, TIM, Vivo each know they are one of three options.
2. Who handles Mexican SIM registration renewals? The IFT requires periodic re-verification. If the registered representative leaves the distributor, all linked SIMs risk deactivation.
3. Where does data exit? Routing Brazilian device data through US cloud adds 120-180ms RTT plus LGPD exposure. Local PGW breakout in São Paulo keeps latency under 30ms.
4. Who certifies decommissioning to ANATEL? When a device retires in Brazil, the IMSI must be de-registered or residual liability remains.