Seongnam, South Korea

Seongnam is located in Gyeonggi, South Korea at coordinates 37.4449° N, 127.1389° E. With a population of approximately 948,757, Seongnam is a growing urban center in Gyeonggi. While smaller than the country's largest cities, it plays an important regional role in South Korea's digital landscape, with connectivity options that continue to improve year over year.

The city operates in the Asia/Seoul timezone (UTC+9). Its mid-latitude position gives Seongnam moderate seasonal variation in daylight hours. Internet connectivity in Seongnam is primarily served by KT, SK Broadband, LG U+. Residents and visitors can use our speed test to check their connection quality from Seongnam.

If you're connecting to the internet from Seongnam, your IP address will typically show a location within Gyeonggi. IP geolocation in mid-sized cities like Seongnam is usually accurate to the regional level, though some connections may resolve to a nearby larger city depending on how the ISP routes traffic. Use our IP lookup tool to check the accuracy for your specific connection.

With a population under one million, Seongnam faces different connectivity dynamics than South Korea's largest metros. Even in smaller cities, South Korea's broadband infrastructure ensures fast and reliable fiber connections are widely available. Seongnam residents typically enjoy speeds comparable to those in major metropolitan areas.

The main ISPs in Seongnam are KT, SK Broadband, and LG U+. With fewer providers competing in a smaller market, it's especially important to verify actual speeds against advertised plans. Use our speed test to measure your real download and upload speeds from Seongnam.

IP addresses assigned to users in Seongnam are allocated by KT, SK Broadband, and LG U+, each of which manages its own blocks of IPv4 and IPv6 addresses. IP addresses in the Asia-Pacific region, including South Korea, are administered by APNIC (Asia Pacific Network Information Centre). APNIC's WHOIS database maps IP ranges to specific ISPs, which is how geolocation tools can identify your connection as originating from Seongnam.

When you connect to the internet in Seongnam, your ISP assigns you either a dynamic or static IP address. In smaller cities, ISPs sometimes allocate IP blocks that cover a broader geographic area, which can cause your IP to geolocate to a nearby larger city rather than Seongnam specifically. Check your current IP and its associated location using our My IP Address tool, or look up any IP with our IP lookup.

South Korea has well-established data protection laws — the Personal Information Protection Act (PIPA) — that govern how ISPs and online services handle user data in Seongnam. These frameworks provide meaningful privacy rights, though your IP address remains visible to websites unless you take extra steps.

To protect your privacy while browsing from Seongnam, consider using a trusted VPN service that encrypts your traffic and masks your real IP address. Even in Seongnam, public Wi-Fi at local cafes and public spaces can expose your data. A VPN adds a critical layer of encryption between your device and the internet. After connecting to your VPN, verify it's working properly with our VPN leak test — this checks for DNS, WebRTC, and IPv6 leaks that could expose your real Seongnam IP address. You can also check your browser fingerprint to see how uniquely identifiable your browser is, even when using a VPN.