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AS45588

Bangladesh Telegraph & Telephone Board

APNIC BD active Announced
More ASNs in Bangladesh →
Organization
Bangladesh Telegraph & Telephone Board
BTCL-ISP-AS
Registered
Dec 29, 2008
17 years ago
IPv4 Prefixes
112
42,752 addresses
IPv6 Prefixes
6
771 × /48
BGP Neighbours
15
1 upstream/peer · 14 downstream

Registration

AS Number AS45588 AS Name BTCL-ISP-AS Organization Bangladesh Telegraph & Telephone Board Organization ID ORG-BTTB1-AP Address Telejogajog Bhaban, 37/E, Eskaton Garden Country Bangladesh (BD) Registry APNIC Allocated Dec 29, 2008 Record Created Oct 20, 2015 Last Updated Jan 18, 2021 Status
active
WHOIS Server whois.apnic.net AS Description BTCL-ISP-AS - Bangladesh Telecommunications Company Limited (BTCL), Nationwide PSTN Operator and Data and Internet Service Provider., BD Remarks Bangladesh Telecommunications Company Limited (BTCL), Nationwide PSTN Operator and Data and Internet Service Provider. Abuse Email [email protected]

IPv4 Prefixes

112 prefixes · 42,752 addresses · 73 top-level Routing data as of 2026-10-08 00:00 UTC

114.0.0.0/8 · 49 prefixes · 15,104 addresses
PrefixRangeAddresses
114.130.128.0/24114.130.128.0 – 114.130.128.255256
114.130.129.0/24114.130.129.0 – 114.130.129.255256
114.130.130.0/24114.130.130.0 – 114.130.130.255256
114.130.131.0/24114.130.131.0 – 114.130.131.255256
114.130.132.0/22114.130.132.0 – 114.130.135.2551,024
114.130.136.0/24114.130.136.0 – 114.130.136.255256
114.130.137.0/24114.130.137.0 – 114.130.137.255256
114.130.138.0/24114.130.138.0 – 114.130.138.255256
114.130.139.0/24114.130.139.0 – 114.130.139.255256
114.130.140.0/24114.130.140.0 – 114.130.140.255256
114.130.141.0/24114.130.141.0 – 114.130.141.255256
114.130.142.0/24114.130.142.0 – 114.130.142.255256
114.130.143.0/24114.130.143.0 – 114.130.143.255256
114.130.144.0/22114.130.144.0 – 114.130.147.2551,024
114.130.148.0/22114.130.148.0 – 114.130.151.2551,024
114.130.152.0/22114.130.152.0 – 114.130.155.2551,024
114.130.152.0/24114.130.152.0 – 114.130.152.255256
114.130.155.0/24114.130.155.0 – 114.130.155.255256
114.130.156.0/24114.130.156.0 – 114.130.156.255256
114.130.157.0/24114.130.157.0 – 114.130.157.255256
114.130.158.0/24114.130.158.0 – 114.130.158.255256
114.130.159.0/24114.130.159.0 – 114.130.159.255256
114.130.160.0/24114.130.160.0 – 114.130.160.255256
114.130.161.0/24114.130.161.0 – 114.130.161.255256
114.130.162.0/24114.130.162.0 – 114.130.162.255256
114.130.164.0/24114.130.164.0 – 114.130.164.255256
114.130.165.0/24114.130.165.0 – 114.130.165.255256
114.130.166.0/24114.130.166.0 – 114.130.166.255256
114.130.168.0/24114.130.168.0 – 114.130.168.255256
114.130.169.0/24114.130.169.0 – 114.130.169.255256
114.130.171.0/24114.130.171.0 – 114.130.171.255256
114.130.172.0/24114.130.172.0 – 114.130.172.255256
114.130.173.0/24114.130.173.0 – 114.130.173.255256
114.130.174.0/24114.130.174.0 – 114.130.174.255256
114.130.175.0/24114.130.175.0 – 114.130.175.255256
114.130.176.0/24114.130.176.0 – 114.130.176.255256
114.130.177.0/24114.130.177.0 – 114.130.177.255256
114.130.180.0/24114.130.180.0 – 114.130.180.255256
114.130.181.0/24114.130.181.0 – 114.130.181.255256
114.130.182.0/24114.130.182.0 – 114.130.182.255256
114.130.183.0/24114.130.183.0 – 114.130.183.255256
114.130.184.0/24114.130.184.0 – 114.130.184.255256
114.130.185.0/24114.130.185.0 – 114.130.185.255256
114.130.186.0/24114.130.186.0 – 114.130.186.255256
114.130.187.0/24114.130.187.0 – 114.130.187.255256
114.130.188.0/24114.130.188.0 – 114.130.188.255256
114.130.189.0/24114.130.189.0 – 114.130.189.255256
114.130.190.0/24114.130.190.0 – 114.130.190.255256
114.130.191.0/24114.130.191.0 – 114.130.191.255256
180.0.0.0/8 · 54 prefixes · 24,576 addresses
PrefixRangeAddresses
180.211.128.0/19180.211.128.0 – 180.211.159.2558,192
180.211.129.0/24180.211.129.0 – 180.211.129.255256
180.211.134.0/24180.211.134.0 – 180.211.134.255256
180.211.135.0/24180.211.135.0 – 180.211.135.255256
180.211.137.0/24180.211.137.0 – 180.211.137.255256
180.211.141.0/24180.211.141.0 – 180.211.141.255256
180.211.142.0/24180.211.142.0 – 180.211.142.255256
180.211.143.0/24180.211.143.0 – 180.211.143.255256
180.211.144.0/24180.211.144.0 – 180.211.144.255256
180.211.145.0/24180.211.145.0 – 180.211.145.255256
180.211.146.0/24180.211.146.0 – 180.211.146.255256
180.211.147.0/24180.211.147.0 – 180.211.147.255256
180.211.152.0/24180.211.152.0 – 180.211.152.255256
180.211.153.0/24180.211.153.0 – 180.211.153.255256
180.211.154.0/24180.211.154.0 – 180.211.154.255256
180.211.156.0/24180.211.156.0 – 180.211.156.255256
180.211.159.0/24180.211.159.0 – 180.211.159.255256
180.211.160.0/19180.211.160.0 – 180.211.191.2558,192
180.211.161.0/24180.211.161.0 – 180.211.161.255256
180.211.162.0/24180.211.162.0 – 180.211.162.255256
180.211.173.0/24180.211.173.0 – 180.211.173.255256
180.211.181.0/24180.211.181.0 – 180.211.181.255256
180.211.186.0/24180.211.186.0 – 180.211.186.255256
180.211.187.0/24180.211.187.0 – 180.211.187.255256
180.211.191.0/24180.211.191.0 – 180.211.191.255256
180.211.192.0/21180.211.192.0 – 180.211.199.2552,048
180.211.192.0/24180.211.192.0 – 180.211.192.255256
180.211.193.0/24180.211.193.0 – 180.211.193.255256
180.211.195.0/24180.211.195.0 – 180.211.195.255256
180.211.196.0/24180.211.196.0 – 180.211.196.255256
180.211.197.0/24180.211.197.0 – 180.211.197.255256
180.211.199.0/24180.211.199.0 – 180.211.199.255256
180.211.205.0/24180.211.205.0 – 180.211.205.255256
180.211.207.0/24180.211.207.0 – 180.211.207.255256
180.211.210.0/24180.211.210.0 – 180.211.210.255256
180.211.211.0/24180.211.211.0 – 180.211.211.255256
180.211.214.0/24180.211.214.0 – 180.211.214.255256
180.211.215.0/24180.211.215.0 – 180.211.215.255256
180.211.219.0/24180.211.219.0 – 180.211.219.255256
180.211.227.0/24180.211.227.0 – 180.211.227.255256
180.211.228.0/24180.211.228.0 – 180.211.228.255256
180.211.232.0/24180.211.232.0 – 180.211.232.255256
180.211.233.0/24180.211.233.0 – 180.211.233.255256
180.211.237.0/24180.211.237.0 – 180.211.237.255256
180.211.238.0/24180.211.238.0 – 180.211.238.255256
180.211.239.0/24180.211.239.0 – 180.211.239.255256
180.211.243.0/24180.211.243.0 – 180.211.243.255256
180.211.247.0/24180.211.247.0 – 180.211.247.255256
180.211.248.0/21180.211.248.0 – 180.211.255.2552,048
180.211.248.0/24180.211.248.0 – 180.211.248.255256
180.211.249.0/24180.211.249.0 – 180.211.249.255256
180.211.250.0/24180.211.250.0 – 180.211.250.255256
180.211.254.0/24180.211.254.0 – 180.211.254.255256
180.211.255.0/24180.211.255.0 – 180.211.255.255256
203.0.0.0/8 · 9 prefixes · 3,072 addresses
PrefixRangeAddresses
203.112.200.0/22203.112.200.0 – 203.112.203.2551,024
203.112.206.0/24203.112.206.0 – 203.112.206.255256
203.112.209.0/24203.112.209.0 – 203.112.209.255256
203.112.210.0/24203.112.210.0 – 203.112.210.255256
203.112.211.0/24203.112.211.0 – 203.112.211.255256
203.112.212.0/22203.112.212.0 – 203.112.215.2551,024
203.112.213.0/24203.112.213.0 – 203.112.213.255256
203.112.214.0/24203.112.214.0 – 203.112.214.255256
203.112.215.0/24203.112.215.0 – 203.112.215.255256

IPv6 Prefixes

6 prefixes · 771 × /48 Routing data as of 2026-10-08 00:00 UTC

BGP Neighbours

15 unique neighbours · 1 upstream/peer · 14 downstream. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries.

Upstream & peer side (1)

Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers.

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS17494BTTB-AS-AP - Telecom Operator & Internet Service Provider as well4,25847,1282,575

Downstream side (14)

Networks seen to the right of this AS in BGP paths — networks whose routes it carries, typically its customers (downstreams).

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS149445PATRIOT1-AS-AP - Patriot Technologies539705366
AS150304BANGLADESH10-AS-AP - Bangladesh Television2841,0340
AS133766SPEED4-AS-AP - SPEED ONE2823570
AS141438BANGLADESHSEZLTD-AS-AP - Bangladesh SEZ Ltd.2821,0710
AS63932BCC-BD - Bangladesh Computer Council2803570
AS137706NATIONAL-UNIVERSITY-AS-AP - National University2801,0710
AS150352SKYBUSINESSCENTER-AS-AP - Sky Business Center2793570
AS134585DDNCOMMUNICATION-AS-AP - DDN Communication2783550
AS149425NNSS-AS-AP - Nazrul Network Service@Saidpur2783550
AS150442BFSACD-AS-AP - Bangladesh Fire Service and Civil Defense2763540
AS137568SKYSYSTEMSLTD-AS-AP - SKY SYSTEMS LTD2215920
AS154009DOPE-AS-AP - Directorate of Primary Education (DPE)2192930
AS139773BANBEIS-AS-AP - Bangladesh Bureau of Educational Information and Statistics711700
AS134068RKUB-AS-AP - Rajshahi Krishi Unnayan Bank48700

Raw RDAP Response

{
  "rdapConformance": [
    "history_version_0",
    "nro_rdap_profile_0",
    "nro_rdap_profile_asn_hierarchical_0",
    "cidr0",
    "rdap_level_0"
  ],
  "notices": [
    {
      "title": "Source",
      "description": [
        "Objects returned came from source",
        "APNIC"
      ]
    },
    {
      "title": "Terms and Conditions",
      "description": [
        "This is the APNIC WHOIS Database query service. The objects are in RDAP format."
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/45588",
          "rel": "terms-of-service",
          "href": "http://www.apnic.net/db/dbcopyright.html",
          "type": "text/html"
        }
      ]
    },
    {
      "title": "Whois Inaccuracy Reporting",
      "description": [
        "If you see inaccuracies in the results, please visit: "
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/45588",
          "rel": "inaccuracy-report",
          "href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
          "type": "text/html"
        }
      ]
    }
  ],
  "country": "BD",
  "name": "BTCL-ISP-AS",
  "status": [
    "active"
  ],
  "events": [
    {
      "eventAction": "registration",
      "eventDate": "2015-10-20T04:24:48Z"
    },
    {
      "eventAction": "last changed",
      "eventDate": "2021-01-18T01:59:51Z"
    }
  ],
  "links": [
    {
      "value": "https://rdap.apnic.net/autnum/45588",
      "rel": "self",
      "href": "https://rdap.apnic.net/autnum/45588",
      "type": "application/rdap+json"
    }
  ],
  "remarks": [
    {
      "description": [
        "Bangladesh Telecommunications Company Limited (BTCL), Nationwide PSTN Operator and Data and Internet Service Provider."
      ],
      "title": "description"
    }
  ],
  "entities": [
    {
      "roles": [
        "technical"
      ],
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2008-09-04T07:29:17Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2008-09-04T07:29:17Z"
        }
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/45588",
          "rel": "self",
          "href": "https://rdap.apnic.net/entity/SR42-AP",
          "type": "application/rdap+json"
        }
      ],
      "handle": "SR42-AP",
      "objectClassName": "entity",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "REDACTED"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ]
        ]
      ]
    },
    {
      "roles": [
        "administrative"
      ],
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2008-09-04T07:29:17Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2008-10-07T08:11:52Z"
        }
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/45588",
          "rel": "self",
          "href": "https://rdap.apnic.net/entity/HA128-AP",
          "type": "application/rdap+json"
        }
      ],
      "handle": "HA128-AP",
      "objectClassName": "entity",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "REDACTED"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ]
        ]
      ]
    },
    {
      "roles": [
        "technical"
      ],
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2008-09-04T07:45:14Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2008-10-08T03:29:52Z"
        }
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/45588",
          "rel": "self",
          "href": "https://rdap.apnic.net/entity/MR209-AP",
          "type": "application/rdap+json"
        }
      ],
      "handle": "MR209-AP",
      "objectClassName": "entity",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "REDACTED"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ]
        ]
      ]
    },
    {
      "roles": [
        "technical"
      ],
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2008-09-04T07:29:17Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2008-09-04T07:29:17Z"
        }
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/45588",
          "rel": "self",
          "href": "https://rdap.apnic.net/entity/RM324-AP",
          "type": "application/rdap+json"
        }
      ],
      "handle": "RM324-AP",
      "objectClassName": "entity",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "REDACTED"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ]
        ]
      ]
    },
    {
      "roles": [
        "abuse"
      ],
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2011-01-02T05:10:08Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2026-07-22T13:12:44Z"
        }
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/45588",
          "rel": "self",
          "href": "https://rdap.apnic.net/entity/IRT-BTTB-BD",
          "type": "application/rdap+json"
        }
      ],
      "remarks": [
        {
          "description": [
            "[email protected]",
            "[email protected]",
            "[email protected]",
            "[email protected] was validated on 2026-03-31",
            "[email protected] is invalid"
          ],
          "title": "remarks"
        }
      ],
      "handle": "IRT-BTTB-BD",
      "objectClassName": "entity",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "IRT-BTTB-BD"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "Data and Internet Service\nBangladesh Telecommunications Company Ltd\nMoghbazar Telephone Bhaban, Dhaka\n\n"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ],
          [
            "email",
            {
              "pref": "1"
            },
            "text",
            "[email protected]"
          ]
        ]
      ]
    },
    {
      "roles": [
        "registrant"
      ],
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2017-08-08T23:24:34Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2023-09-05T02:14:44Z"
        }
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/45588",
          "rel": "self",
          "href": "https://rdap.apnic.net/entity/ORG-BTTB1-AP",
          "type": "application/rdap+json"
        }
      ],
      "handle": "ORG-BTTB1-AP",
      "objectClassName": "entity",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
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          ],
          [
            "fn",
            {},
            "text",
            "Bangladesh Telegraph & Telephone Board"
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ],
          [
            "adr",
            {
              "label": "Telejogajog Bhaban\n37/E, Eskaton Garden"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+880-2-8311500"
          ],
          [
            "tel",
            {
              "type": "fax"
            },
            "text",
            "+880-2-9320002"
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ]
        ]
      ]
    }
  ],
  "handle": "AS45588",
  "startAutnum": 45588,
  "endAutnum": 45588,
  "objectClassName": "autnum",
  "port43": "whois.apnic.net"
}

Contact details of private individuals are redacted.