---
title: "Starlink latency, data caps, CGNAT and 192.168.100.1 · Kilobat"
url: "https://kilobat.app/satellite-internet/starlink"
description: "Starlink’s published latency, what each plan does after its data, CGNAT and public IPv4, the app-only router, the dish at 192.168.100.1 and its known quirks."
---

Satellite internet · Low Earth orbit

# Starlink: latency, data plans, CGNAT and the dish address

Starlink is SpaceX’s low Earth orbit service, with thousands of satellites and a dish that tracks them on its own. Latency and interruptions vary by location and conditions. Obstructions and weather can interrupt service.

Low Earth orbit

## At a glance

|  |  |
|---|---|
| Orbit | Low Earth orbit. More than 7,800 satellites, by Starlink’s count in its June 2025 network update. |
| Typical latency | 25.7 ms median at peak hours across US customers, as of June 2025, from Starlink’s [network update](https://starlink.com/us/updates/network-update). |
| Data | Depends on the market and plan: Residential, capped Roam plans, and Priority plans with a monthly amount. |
| IPv4 | Shared (CGNAT, 100.64.0.0/10) by default, no inbound traffic. Public IPv4 only on Local and Global Priority plans. |
| IPv6 | Native on every plan, with a /56 prefix for your network. |
| Router admin | No admin page. Settings are in the Starlink app. |
| Dish address | `192.168.100.1` on your own network, used by the Starlink app. Starlink documents a local device API at this address. |

## Latency

Starlink says its median peak-hour latency across all US customers was 25.7 ms as of June 2025, and that fewer than 1% of measurements went over 55 ms. Its stated goal is a stable 20 ms median. It measures from the Starlink router to the internet and back, so your Wi-Fi comes on top. It doesn’t publish the same figures for other countries on that page.

What you notice is not the median but the short spikes. Researchers observed a 15-second reconfiguration cycle, at :12, :27, :42 and :57 past the minute, with latency changes in their measurements. A reconfiguration can reconnect to the same satellite; the timing and effects may change. Starlink itself doesn’t document this schedule.

## Data and fair use

Starlink’s [Fair Use Policy](https://starlink.com/legal/documents/DOC-1469-65206-75) sets the data by plan. As of November 2026:

- **Residential**: unlimited residential data.
- **Residential Lite**: available under that name in some markets. Starlink has renamed the plan in others; check the terms where you live.
- **Roam Unlimited**: unlimited roam data, and up to 30 days at a time outside your home country.
- **Roam 100 GB or 300 GB**: after the allowance, service continues at low speed. Starlink says low speed supports email, calls and texts, while video is limited. Roam 50 GB remains available in some markets; check its current terms for your location.
- **Local and Global Priority**: a monthly amount you choose. Without top-ups, service continues at up to 1 Mbps down and 0.5 Mbps up when it runs out; top-ups come in 50 GB blocks.

Priority data doesn’t roll over. Starlink notifies at 80% and 100% if data notifications are on. Which plans exist, and their sizes, differ by country.

## Router and dish

The standard Starlink router has **no admin portal**. Its settings are in the Starlink app: Wi-Fi name and password, split 2.4 and 5 GHz networks, reboot, factory reset, custom DNS, a custom LAN subnet, bypass mode, content filtering and pausing clients. It doesn’t do port forwarding or MAC filtering.

The dish answers on `192.168.100.1` on your own network. That’s how the Starlink app reads it, and how Kilobat does. In **bypass mode** with your own router, the router may need a route to that address; Starlink and ASUS document static routes for third-party routers. Bypass mode can only be undone with a factory reset of the Starlink router.

## Known quirks

- **CGNAT.** By default many customers share a public IPv4 address, which prevents ordinary unsolicited inbound IPv4 connections. Hosting a game, port forwarding and reaching home from outside need IPv6, a relay such as Tailscale, or a Priority plan with the public IPv4 option and your own router.
- **Short drops.** Obstructions, handovers and heavy rain can cause brief drops. Speed tests miss them; calls and games don’t.
- **Weather.** Starlink says heavy rain or wind may slow the connection or cause a rare outage, and that the dish melts snow. It says not to put a cover on it.
- **Blocked ports.** Starlink lists outbound TCP 25 and IPv4 TCP 445 as blocked; its port list also names other protocol and regional restrictions.
- **Addresses can change.** Even the public IPv4 option isn’t truly static. Moving the dish or a software update may change it.
- **Not connected yet.** If your public address is `206.214.239.194`, Starlink says the dish hasn’t reached its point of presence.

## With Kilobat

Kilobat reads the dish itself on your network, read-only: its state, ping to Starlink’s ground station, alerts, the sky map with which way it’s blocked, and recently reported outages grouped by their reported cause. Call reports can compare freezes with dish outages. The stutter test can show short spikes; timing alone cannot establish their cause. On a capped Roam plan, one tap marks the network metered and, with Pro, sets a budget the size of your plan. See [Kilobat for Starlink](https://kilobat.app/starlink), and [how to read a satellite link’s history](https://kilobat.app/satellite-internet).

## Questions

**Can I port forward on Starlink?**

Not with the Starlink router, and not over IPv4 on the default plan, which uses CGNAT. You need your own router and a Priority plan with the public IPv4 option. Over IPv6, inbound traffic can reach your own router.

**Is 192.168.100.1 an official Starlink API?**

Starlink documents an officially supported local device API at this address on port 9200. Kilobat reads additional dish status and history fields used by community tools; those fields are not in the published device API definition. Starlink also documents a separate Telemetry API for enterprise customers.

**Why does my call freeze when a speed test looks fine?**

A speed test averages over seconds. An obstruction or other network event can interrupt a call briefly. A fast ping test can show spikes, but does not establish their cause.

## Sources

- [Starlink: Network update (latency and speed figures)](https://starlink.com/us/updates/network-update)
- [Starlink: Fair Use Policy](https://starlink.com/legal/documents/DOC-1469-65206-75)
- [Starlink Help Center: What are the Roam service plans?](https://starlink.com/support/article/dd5b43b5-20e1-b29b-2d7d-a7ffd0541988)
- [Starlink Help Center: Managing Priority Data](https://starlink.com/support/article/73be8cc0-20d4-f384-caaf-bfae26b50a1d)
- [Starlink Help Center: What IP address does Starlink provide?](https://starlink.com/support/article/1192f3ef-2a17-31d9-261a-a59d215629f4)
- [Starlink Help Center: Can I port forward with the Starlink router?](https://starlink.com/support/article/e3e6bb65-2bbc-1c8a-0c42-74b4776a64f8)
- [Starlink Help Center: Does Starlink have a WiFi router administrator portal?](https://starlink.com/support/article/f9a1d602-9204-e70c-a780-f2619d99f9c7)
- [Starlink Help Center: What is bypass mode?](https://starlink.com/support/article/a0fe8d51-32f7-d2b9-d74a-801e31ad9f6a)
- [Starlink Help Center: snow, heavy rain, wind, lightning or extreme temperatures](https://starlink.com/support/article/d95f8988-53bb-98d5-badc-604b4f609638)
- [Starlink Help Center: What is the telemetry API?](https://starlink.com/support/article/90109cc2-c7ec-31ff-d160-0a87f16ef759)
- [ASUS: How to set up an ASUS router to work with Starlink](https://www.asus.com/support/FAQ/1047774/)
- [Tanveer et al., Making Sense of Constellations: Methodologies for Understanding Starlink’s Scheduling Algorithms (2023)](https://arxiv.org/abs/2307.00402)
- [Mohan et al., A Multifaceted Look at Starlink Performance (WWW 2024)](https://arxiv.org/abs/2310.09242)
- [SpaceX: officially supported Starlink local device API](https://github.com/SpaceExplorationTechnologies/enterprise-api/tree/master/device-api)
- [Starlink Help Center: Service plan changes](https://starlink.com/support/article/51a36a33-5725-5293-f0d4-743a0cbf4740)
- [Lai et al.: Measuring Mobile Starlink Performance (path reconfiguration)](https://ieeexplore.ieee.org/document/10877858)
- [Starlink: Enterprise kit setup guide (third-party router route)](https://starlink.com/public-files/installation_guide_enterprise_kit.pdf)
- [Starlink: Roam 50 GB is now Roam 100 GB in most markets](https://starlink.com/support/article/58c9c8b7-474e-246f-7e3c-06db3221d34d)
- [Starlink: What ports does Starlink block?](https://starlink.com/support/article/c3caacdf-1c1f-98db-b821-bbb36ca9d89b)
- [Starlink: Residential plans and availability](https://starlink.com/support/article/886607c4-df3e-cdbd-4b3b-f998eda7ad98)

Plans, prices and rules change, often by country; check your provider’s current information.

## Other providers

- [Amazon Leo](https://kilobat.app/satellite-internet/amazon-leo): Formerly Project Kuiper. Amazon announced an enterprise preview and terminal speeds; check availability in your area.
- [Viasat](https://kilobat.app/satellite-internet/viasat): Geostationary latency, data rules and gateway details to check for your plan.
- [HughesNet](https://kilobat.app/satellite-internet/hughesnet): Geostationary. Priority Data, then Standard Data that may slow during congestion.
- [Eutelsat OneWeb](https://kilobat.app/satellite-internet/eutelsat-oneweb): A low Earth orbit network for business, ships and planes. Plans come from the company that sells you service.
- [Satellite internet on a Mac](https://kilobat.app/satellite-internet): What goes wrong on a satellite link, and how to read it.