482
Summary
- // if you see it open
- No CVE recorded in the NVD referencing port 482 as of an August 2026 search. No malware/trojan association could be established for 482/tcp; auditmypc.com's port page carries only the site's standard templated disclaimer, not a port-specific verdict. A search-result snippet tying this port to netbios-ns was investigated and rejected as an inaccurate summarizer artifact — netbios-ns is the well-established name for port 137.
About port 482/tcp.
Port 482/tcp carries bgs-nsi, an IANA-registered service name with no documented function, no RFC, and no known software behind it — it should be treated as an unverified legacy assignment rather than exposed to the public internet.
The IANA Service Name and Transport Protocol Port Number Registry lists 482 as bgs-nsi on both tcp and udp, registered to Jon_Saperia. The description column repeats only the bare token "bgs-nsi" itself, and both the reference and any expanded specification are blank — no RFC or linked document defines what the service does.
Jon_Saperia was an active IETF contributor to SNMP and network-management RFCs in the 1990s, but that authorship is unrelated document work, not evidence of what bgs-nsi itself implements; no source located in an August 2026 search connects the token to a documented product or protocol.
The nmap-services corpus records 482/tcp (bgs-nsi) at an open-frequency of exactly 0 — sampled and not observed open, a real reading rather than a gap. Its 482/udp row is listed under a different name, "xlog," at ~0.000577; that is a naming discrepancy between the nmap-services and current IANA databases, not evidence of a second, distinct registration.
No CVE references port 482 in the NVD as of an August 2026 search, and no malware or Trojan association could be established. Several port-lookup aggregator sites (SpeedGuide, adminsub.net, auditmypc.com, ports.my-addr.com) either errored out or named no specific software when checked.
- IANA assignment
bgs-nsi— description field repeats the token itself, no expanded text; reference blank; assignee Jon_Saperia; dual-registered 482/tcp + 482/udp under the same name [Confirmed] — the IANA Service Name and Transport Protocol Port Number Registry bgs-nsi 482/tcp; bgs-nsi 482/udp- Range class
- well-known/system range (0–1023) [Confirmed] — this site's own tooling (range: "system")
- Prevalence
- nmap-services open-frequency for 482/tcp (bgs-nsi) = 0 (sampled, not observed open); 482/udp ≈ 0.000577, listed there under the name "xlog" rather than bgs-nsi — a naming discrepancy between the nmap-services corpus and the current IANA registry, not a second registration[Confirmed] — this site's own tooling (port 482)
- Related ports
- 481/tcp (
ph, "Ph service", assignee Roland_Hedberg) and 483/tcp (ulpnet, assignee Kevin_Mooney) — adjacent System Port registrations, not functionally related [Confirmed] — the IANA Service Name and Transport Protocol Port Number Registry ph 481/tcp; ulpnet 483/tcp
Protocol purpose
Unknown — no RFC, vendor document, or spec describing bgs-nsi was found; the registrant's unrelated 1990s SNMP/network-management RFC authorship is not evidence of this token's function
Security implications
no CVE recorded in the NVD referencing port 482 as of an August 2026 search; no malware/trojan association could be established; a search-result snippet tying this port to netbios-ns was investigated and rejected as inaccurate (netbios-ns is well-established as port 137)
Typically seen on
no documented deployment pattern found; an open 482/tcp is statistically rare (frequency 0 in the sampled nmap-services corpus)
- Common applications generating traffic
- Unknown — no vendor documentation, blog, or forum/support thread reporting specific software observed on 482/tcp was found in an August 2026 search; several port-lookup aggregator sites returned errors or no attribution when checked [Unknown]
About port 482/udp.
Port 482/udp carries no documented protocol: IANA registers the service name bgs-nsi against it, but the registry entry has a blank description and a blank reference field, and no application has been confirmed to generate traffic here — this port should be treated as unidentified/anomalous rather than assumed safe to expose to the public internet.
The IANA Service Name and Transport Protocol Port Number Registry lists bgs-nsi as dual-registered on both 482/tcp and 482/udp, with Jon_Saperia recorded as assignee. The Reference field is blank, meaning no RFC or external specification is cited, and the registry itself supplies no description of what "bgs-nsi" does or stands for.
The repository's nmap-services-derived port-data.json records an open-frequency for 482/udp of 0.000577 (about 0.058%) — a real sampled measurement, not an absence. That dataset attaches the service label "xlog" to the udp/482 row rather than "bgs-nsi", while the 482/tcp row shows a frequency of 0; the discrepancy is noted here, not resolved, since no source explains it.
No vendor documentation, forum thread, or malware report was found describing an application that uses 482/udp, and no CVE or trojan is recorded against it as of an August 2026 search. Generic port-lookup aggregator pages only restate the bare IANA registration without naming software. Given the undocumented protocol and absence of known legitimate use, an open 482/udp is worth flagging for investigation rather than treated as routine service traffic.
- IANA assignment
bgs-nsi— no description; assignee Jon_Saperia; reference blank; dual-registered 482/tcp + 482/udp [Confirmed] — the IANA Service Name and Transport Protocol Port Number Registry bgs-nsi 482/udp- Range class
- well-known / system (0–1023) [Confirmed] — this site's own tooling (range: "system")
- Prevalence
- open-frequency 482/udp = 0.000577 (~0.058%, dataset lists this row under service name "xlog"); 482/tcp = 0 [Confirmed] — this site's own tooling
- Related ports
- 482/tcp (same dual IANA registration under
bgs-nsi) [Confirmed] — the IANA Service Name and Transport Protocol Port Number Registry bgs-nsi 482/tcp
Primary use
Unknown — no protocol description, RFC, or specification is on file for bgs-nsi
Other/unofficial uses
None found [Unknown] — https://www.speedguide.net/port.php?port=482, https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_nbar/prot_lib/config_library/pp4800/nbar-prot-pack4800/b.html
Security implications
no CVE or malware association found as of an August 2026 search; undocumented protocol makes an open instance anomalous
Typically seen on
Unknown — no confirmed deployments identified [Unknown]
- Analyst note
- An open 482/udp has no documented legitimate purpose; treat as an anomaly worth investigating rather than routine traffic.
Service assignments.
| Name | Protocol | Description | Open frequency |
|---|---|---|---|
| xlog | UDP | — | 0.06% |
| bgs-nsi | TCP | — | 0.00% |
Service assignments from the IANA Service Name and Transport Protocol Port Number Registry, with open-frequency data from nmap-services.