203.135.21.0/24

AS17557  ·  Pakistan Telecommunication Company Limited

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Summary

Country Pakistan
Domain ptcl.net.pk
ASN AS17557
Parent Range 203.135.0.0/18
Registry APNIC
ID PTCL

WHOIS Details

inetnum:        203.135.21.0 - 203.135.21.255
netname:        PTCL
descr:          Premium DSL on LHR Huawei BRAS-2
country:        PK
admin-c:        MA527-AP
tech-c:         MA527-AP
abuse-c:        AP1078-AP
status:         ASSIGNED NON-PORTABLE
mnt-by:         MAINT-PK-PTCLBB
mnt-irt:        IRT-PTCLBB-PK
last-modified:  2021-01-20T22:25:30Z
source:         APNIC

irt:            IRT-PTCLBB-PK
address:        General Manager,
address:        Pakistan Telecommunication Company Limited.
address:        H-9/1, CDDT Building, Training Block
address:        Islamabad, Pakistan
e-mail:         abuse.irt@ptcl.net
e-mail:         csirt@ptcl.net
abuse-mailbox:  abuse.irt@ptcl.net
abuse-mailbox:  csirt@ptcl.net
admin-c:        MA527-AP
tech-c:         MA527-AP
auth:           # Filtered
remarks:        abuse.irt@ptcl.net was validated on 2025-09-29
remarks:        csirt@ptcl.net was validated on 2025-09-30
mnt-by:         MAINT-PK-PTCLBB
last-modified:  2025-11-18T00:26:37Z
source:         APNIC

role:           ABUSE PTCLBBPK
country:        ZZ
address:        General Manager,
address:        Pakistan Telecommunication Company Limited.
address:        H-9/1, CDDT Building, Training Block
address:        Islamabad, Pakistan
phone:          +000000000
e-mail:         abuse.irt@ptcl.net
e-mail:         csirt@ptcl.net
admin-c:        MA527-AP
tech-c:         MA527-AP
nic-hdl:        AP1078-AP
remarks:        Generated from irt object IRT-PTCLBB-PK
remarks:        abuse.irt@ptcl.net was validated on 2025-09-29
remarks:        csirt@ptcl.net was validated on 2025-09-30
abuse-mailbox:  abuse.irt@ptcl.net
abuse-mailbox:  csirt@ptcl.net
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-30T08:17:20Z
source:         APNIC

person:         Munir Ahmed
address:        SM TAC H-9/1, Islamabad
address:        Islamabad, Pakistan
country:        PK
phone:          +92-51-4865412
e-mail:         munir.ahmed@ptcl.net.pk
e-mail:         yasir.ahmad@ptcl.net.pk
nic-hdl:        MA527-AP
mnt-by:         MAINT-PTCLBB-PK
last-modified:  2020-08-26T13:56:32Z
source:         APNIC

route:          203.135.21.0/24
origin:         AS17557
descr:          Pakistan Telecommuication company limited CDDT Building, H-9/1, Training Block Pakistan Telecommunication Company Limited GM, Multimedia & Broadband
mnt-by:         MAINT-PK-PTCLBB
last-modified:  2021-02-12T15:58:31Z
source:         APNIC

route:          203.135.21.0/24
origin:         AS45595
descr:          Pakistan Telecommuication company limited CDDT Building, H-9/1, Training Block Pakistan Telecommunication Company Limited GM, Multimedia & Broadband
mnt-by:         MAINT-PK-PTCLBB
last-modified:  2021-02-12T15:59:36Z
source:         APNIC

route:          203.135.21.0/24
origin:         AS9557
descr:          Pakistan Telecommuication company limited CDDT Building, H-9/1, Training Block Pakistan Telecommunication Company Limited GM, Multimedia & Broadband
mnt-by:         MAINT-PK-PTCLBB
last-modified:  2020-04-22T06:17:12Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 203.135.21.0/24

Range ASN Company Num of IPs
203.135.0.0/18 AS17557 Pakistan Telecommunication Company Limited 16,384

Nearby Ranges

BGP prefixes that overlap with 203.135.0.0/16

Range ASN Company Num of IPs
203.135.0.0/18 AS17557 Pakistan Telecommunication Company Limited 16,384
203.135.192.0/18 AS7679 QTnet,Inc. 16,384
203.135.64.0/19 AS56179 Symphox Information Co.,Ltd. 8,192
203.135.64.0/19 AS9216 Symphox Information Co.,Ltd. 8,192
203.135.176.0/21 AS38211 PT. Mandiri Citra Makmur 2,048
203.135.44.0/22 AS56167 Ufone 1,024
203.135.20.0/24 AS17557 Premium DSL on LHR Huawei BRAS-1 256
203.135.2.0/24 AS17557 Premium DSL on ISB Huawei BRAS-1 256
203.135.22.0/24 AS17557 Premium DSL on LHR Huawei BRAS-2 256
203.135.23.0/24 AS17557 Premium DSL on LHR Huawei BRAS-2 256
203.135.25.0/24 AS17557 Premium DSL on LHR Huawei BRAS-2 256
203.135.26.0/24 AS17557 Premium DSL on KHI Huawei BRAS-1 256
203.135.29.0/24 AS17557 Premium DSL on KHI Huawei BRAS-1 256
203.135.30.0/24 AS17557 Premium DSL on KHI Huawei BRAS-1 256
203.135.3.0/24 AS17557 Premium DSL on ISB Huawei BRAS-1 256
203.135.33.0/24 AS17557 Premium DSL on KHI Huawei BRAS-2 256
203.135.36.0/24 AS17557 Premium DSL on KHI Huawei BRAS-2 256
203.135.38.0/24 AS17557 Premium DSL on KHI Huawei BRAS-3 256
203.135.4.0/24 AS17557 Premium DSL on ISB Huawei BRAS-1 256
203.135.41.0/24 AS17557 Premium DSL on KHI Huawei BRAS-3 256
203.135.42.0/24 AS17557 Premium DSL on KHI Huawei BRAS-3 256
203.135.43.0/24 AS17557 Premium DSL on KHI Huawei BRAS-3 256
203.135.48.0/24 AS17557 Premium DSL on QTA Huawei BRAS-1 256
203.135.49.0/24 AS17557 Premium DSL on QTA Huawei BRAS-1 256
203.135.50.0/24 AS17557 Premium DSL on QTA Huawei BRAS-1 256
203.135.5.0/24 AS17557 Premium DSL on ISB Huawei BRAS-2 256
203.135.54.0/24 AS17557 Premium DSL on SUkkur BRAS-1 256
203.135.55.0/24 AS17557 Premium DSL on Bahawalpur BRAS-1 256
203.135.56.0/24 AS17557 Premium DSL on Bahawalpur BRAS-1 256
203.135.57.0/24 AS17557 Premium DSL on Bahawalpur BRAS-1 256
203.135.58.0/24 AS17557 Premium DSL on Sailkot BRAS-1 256
203.135.61.0/24 AS17557 Premium DSL on Sailkot BRAS-1 256
203.135.62.0/24 AS17557 Premium DSL on Sailkot BRAS-1 256
203.135.63.0/24 AS17557 Premium DSL on Sailkot BRAS-1 256
203.135.128.0/24 AS23881 WEB HOST LIMITED 256
203.135.129.0/24 AS23881 WEB HOST LIMITED 256
203.135.130.0/24 AS23881 WEB HOST LIMITED 256
203.135.131.0/24 AS23881 WEB HOST LIMITED 256
203.135.132.0/24 AS23881 WEB HOST LIMITED 256
203.135.133.0/24 AS23881 WEB HOST LIMITED 256
203.135.134.0/24 AS23881 WEB HOST LIMITED 256
203.135.135.0/24 AS23881 WEB HOST LIMITED 256
203.135.137.0/24 AS23881 WEB HOST LIMITED 256
203.135.138.0/24 AS23881 WEB HOST LIMITED 256
203.135.139.0/24 AS23881 WEB HOST LIMITED 256
203.135.140.0/24 AS23881 WEB HOST LIMITED 256
203.135.141.0/24 AS23881 WEB HOST LIMITED 256
203.135.142.0/24 AS23881 WEB HOST LIMITED 256
203.135.143.0/24 AS23881 WEB HOST LIMITED 256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
203.135.21.14 japanelectronicsho.com 1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity

Pingable IPs

29 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
203.135.21.76 AS17557 Pakistan Telecommunication Company Limited 1.53ms from Islamabad, PK

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
105.99.46.88 AS36947 Telecom Algeria 10.53ms from Algiers, DZ
52.115.178.168 AS8075 Microsoft Corporation 0.83ms from Boydton, US
156.222.11.104 AS8452 TE-AS 3.34ms from Cairo, EG
122.178.202.136 AS24560 Bharti Airtel Ltd., Telemedia Services 9.78ms from Chennai, IN
3.126.71.248 AS16509 Amazon.com, Inc. 0.23ms from Frankfurt am Main, DE
183.167.244.104 AS4134 CHINANET-BACKBONE 9.68ms from Huai'an, CN
58.143.185.72 AS10036 DLIVE 6.72ms from Incheon, KR
118.46.201.8 AS4766 Korea Telecom 0.82ms from Incheon, KR
193.236.32.232 AS199155 Direcao Geral de Estatisticas da Educacao e Ciencia 5.46ms from Lisbon, PT
172.118.90.168 AS20001 Charter Communications Inc 6.14ms from Los Angeles, US
51.48.171.88 AS16509 Amazon.com, Inc. 5.58ms from Madrid, ES
34.91.111.72 AS396982 Google LLC 0.14ms from Oudeschip, NL
109.253.1.200 AS1680 Cellcom Fixed Line Communication L.P 13.19ms from Rosh Ha‘Ayin, IL
125.177.217.184 AS17858 LG POWERCOMM 1.81ms from Seoul, KR
85.238.221.104 AS29518 Bredband2 AB 8.45ms from Stockholm, SE
46.11.174.232 AS15735 GO p.l.c. 1.38ms from Swieqi, MT
3.103.139.168 AS16509 Amazon.com, Inc. 0.69ms from Auckland, NZ
79.223.207.24 AS3320 Deutsche Telekom AG 5.81ms from Berlin, DE
189.51.161.232 AS270785 PRNET PROVEDOR DE INTERNET LTDA 8.21ms from Brasilia, BR
66.99.130.8 AS6325 Illinois Century Network 7.40ms from Chicago, US
103.239.83.8 AS151620 AVEVA RESOURCE 2.05ms from Dhaka, BD
20.240.135.88 AS8075 Microsoft Corporation 0.20ms from Gaevle, SE
179.94.99.216 AS26599 TELEFÔNICA BRASIL S.A 3.71ms from Osasco, BR
90.127.58.248 AS3215 Orange S.A. 1.64ms from Paris, FR
218.48.73.104 AS9318 SK Broadband Co Ltd 1.39ms from Seoul, KR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -f4 203.135.21.143
traceroute to 203.135.21.143 (203.135.21.143): 64 hops max, 52 byte packets
5 [AS5603] 95.176.251.21 20.539 ms
6 *
7 *
8 [AS17557] 203.135.21.143 162.939 ms
Measurement taken from IPinfo ProbeNet in Skopje, MK
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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