Whois & RDAP Lookup
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IP Geolocation RDAPIP Range124.43.203.0 - 124.43.203.255
Handle124.43.203.0 - 124.43.203.255
NameCUS-LAN-SLT-LK
TypeASSIGNED NON-PORTABLE
CountryLK
Registered2008-09-04 07:19 UTC
Updated2024-07-08 08:46 UTC
Admin ContactNetwork Administrator SLTNet
Email[email protected]
Phone+94-11-2021653
AddressSri Lanka Telecom, Internet Operations Centre, 5th Floor, OTS Building, Lotus Road, Colombo - 1
Tech ContactNetwork Administrator SLTNet
Email[email protected]
Phone+94-11-2021653
AddressSri Lanka Telecom, Internet Operations Centre, 5th Floor, OTS Building, Lotus Road, Colombo - 1
Abuse Contact[email protected]
Statusactive
Registry RDAPhttps://rdap.apnic.net
Raw WHOIS response
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '124.43.203.0 - 124.43.203.255'
% Abuse contact for '124.43.203.0 - 124.43.203.255' is '[email protected]'
inetnum: 124.43.203.0 - 124.43.203.255
netname: CUS-LAN-SLT-LK
descr: Leased Line Customer LAN
descr: SRI LANKA TELECOM
descr: COLOMBO
country: LK
admin-c: NS198-AP
tech-c: NS198-AP
abuse-c: AL1644-AP
status: ASSIGNED NON-PORTABLE
mnt-by: MNT-SLT-LK
mnt-irt: IRT-LKTELECOM-LK
last-modified: 2024-07-08T08:46:06Z
source: APNIC
irt: IRT-LKTELECOM-LK
address: Internet Division
address: 7th floor
address: OTS Building
address: Sri Lanka Telecom
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: KN449-AP
tech-c: KN449-AP
auth: # Filtered
remarks: [email protected] was validated on 2026-06-24
mnt-by: MNT-SLT-LK
last-modified: 2026-07-07T04:08:23Z
source: APNIC
role: ABUSE LKTELECOMLK
country: ZZ
address: Internet Division
address: 7th floor
address: OTS Building
address: Sri Lanka Telecom
phone: +000000000
e-mail: [email protected]
admin-c: KN449-AP
tech-c: KN449-AP
nic-hdl: AL1644-AP
remarks: Generated from irt object IRT-LKTELECOM-LK
remarks: [email protected] was validated on 2026-06-24
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2026-07-07T04:08:54Z
source: APNIC
person: Network Administrator SLTNet
nic-hdl: NS198-AP
e-mail: [email protected]
address: Sri Lanka Telecom
address: Internet Operations Centre
address: 5th Floor, OTS Building, Lotus Road
address: Colombo - 1
phone: +94-11-2021653
fax-no: +94-11- 2434020
country: LK
remarks: -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-
remarks: Please send all IP abuse complaints to [email protected]
remarks: -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-
mnt-by: MNT-SLT-LK
last-modified: 2009-03-13T10:31:02Z
source: APNIC
% Information related to '124.43.203.0/24AS9329'
route: 124.43.203.0/24
origin: AS9329
descr: Sri Lanka Telecom Ltd
Lotus Road
OTS Building. 7 / F
ISP Opeartions Section
mnt-by: MNT-SLT-LK
last-modified: 2019-10-17T07:51:16Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-SG1)
% Query time: 605 msec
% WHEN: Wed Oct 14 06:57:52 UTC 2026Raw RDAP JSON (registry) https://rdap.apnic.net
{
"cidr0_cidrs": [
{
"length": 24,
"v4prefix": "124.43.203.0"
}
],
"country": "LK",
"endAddress": "124.43.203.255",
"entities": [
{
"events": [
{
"eventAction": "registration",
"eventDate": "2010-11-08T09:00:37Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-07-07T04:08:23Z"
}
],
"handle": "IRT-LKTELECOM-LK",
"links": [
{
"href": "https://rdap.apnic.net/entity/IRT-LKTELECOM-LK",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/124.43.203.253"
}
],
"objectClassName": "entity",
"remarks": [
{
"description": [
"[email protected] was validated on 2026-06-24"
],
"title": "remarks"
}
],
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-LKTELECOM-LK"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Internet Division\n7th floor\nOTS Building\nSri Lanka Telecom"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T07:29:40Z"
},
{
"eventAction": "last changed",
"eventDate": "2009-03-13T10:31:02Z"
}
],
"handle": "NS198-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/NS198-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/124.43.203.253"
}
],
"objectClassName": "entity",
"remarks": [
{
"description": [
"-+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-",
"Please send all IP abuse complaints to [email protected]",
"-+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-"
],
"title": "remarks"
}
],
"roles": [
"technical",
"administrative"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Network Administrator SLTNet"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "Sri Lanka Telecom\nInternet Operations Centre\n5th Floor, OTS Building, Lotus Road\nColombo - 1"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+94-11-2021653"
],
[
"tel",
{
"type": "fax"
},
"text",
"+94-11- 2434020"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T07:19:03Z"
},
{
"eventAction": "last changed",
"eventDate": "2024-07-08T08:46:06Z"
}
],
"handle": "124.43.203.0 - 124.43.203.255",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.apnic.net/ip/124.43.203.0/24",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/124.43.203.253"
}
],
"name": "CUS-LAN-SLT-LK",
"notices": [
{
"description": [
"Objects returned came from source",
"APNIC"
],
"title": "Source"
},
{
"description": [
"This is the APNIC WHOIS Database query service. The objects are in RDAP format."
],
"links": [
{
"href": "http://www.apnic.net/db/dbcopyright.html",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.apnic.net/ip/124.43.203.253"
}
],
"title": "Terms and Conditions"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.apnic.net/ip/124.43.203.253"
}
],
"title": "Whois Inaccuracy Reporting"
}
],
"objectClassName": "ip network",
"port43": "whois.apnic.net",
"rdapConformance": [
"history_version_0",
"nro_rdap_profile_0",
"cidr0",
"rdap_level_0"
],
"remarks": [
{
"description": [
"Leased Line Customer LAN",
"SRI LANKA TELECOM",
"COLOMBO"
],
"title": "description"
}
],
"startAddress": "124.43.203.0",
"status": [
"active"
],
"type": "ASSIGNED NON-PORTABLE"
}Frequently asked questions
What is WHOIS?
WHOIS is a public directory that answers "who is responsible for this?" for domains, IP ranges and ASNs. It lists registration dates, the registrar, nameservers and contacts.
What is RDAP, and how does it differ?
RDAP is the modern replacement for WHOIS. It returns the same records in a structured, consistent format. We query RDAP first and fall back to classic WHOIS text when a registry has not adopted it yet.
What is the difference between a registrar and a registrant?
The registrar is the company you register and manage a domain through, such as xTom or GoDaddy. The registrant is the person or organization that actually holds the domain.
What are nameservers?
Nameservers answer DNS questions for a domain and decide which IP addresses the name resolves to. They also show which DNS provider the domain uses.
What is DNSSEC?
DNSSEC adds cryptographic signatures to DNS answers so they cannot be quietly altered in transit. "Signed" means the domain has it enabled, "unsigned" means it does not.
Why is the contact information redacted?
Privacy laws such as GDPR require registrars to hide most personal details in public records. The abuse contact is usually still shown, so a domain or network can be reported when something goes wrong.