AS17557
Pakistan Telecommunication Company Limited
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Active-threat / abuse risk −12
- Isp allocation +5
- Trust score 58 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
About PTCL
Pakistan Telecommunication Company Ltd., commonly known as PTCL, is the national telecommunication company in Pakistan. PTCL provides telephone and internet services nationwide and is the backbone for the country's telecommunication infrastructure.
⚠ 3 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS17557 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 103.12.43.0/24 | AS17557, AS139820 | 2026-09-09 11:10:31 |
| 203.135.62.0/24 | AS17557, AS65000 | 2026-09-09 10:25:32 |
| 203.135.63.0/24 | AS17557, AS65000 | 2026-09-09 10:25:32 |
Network profile
Source: PeeringDB →Present at 8 internet exchanges: LINX LON1: Main, AMS-IX, Equinix Singapore, DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, DE-CIX New York: DE-CIX New York Peering LAN, SH-IX, UAE-IX: UAE-IX Peering LAN, Pakistan Internet Exchange (PIE) Karachi
AS17557 — global IP footprint
Cities where AS17557 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS17557 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 203.135.62.0/24 | 101,726 | 2026-09-10 12:41:48 |
| 203.135.63.0/24 | 101,145 | 2026-09-10 12:41:48 |
| 113.203.206.0/24 | 48,905 | 2026-09-10 12:41:48 |
| 202.70.146.0/24 | 47,039 | 2026-09-10 12:41:48 |
| 202.70.147.0/24 | 46,846 | 2026-09-10 12:41:48 |
| 203.135.57.0/24 | 46,799 | 2026-09-10 12:41:48 |
| 203.135.22.0/24 | 46,117 | 2026-09-10 12:41:48 |
| 203.135.3.0/24 | 46,115 | 2026-09-10 12:41:48 |
| 203.135.23.0/24 | 46,086 | 2026-09-10 12:41:48 |
| 203.135.4.0/24 | 46,045 | 2026-09-10 12:41:48 |
| 203.135.25.0/24 | 46,006 | 2026-09-10 12:41:48 |
| 203.135.56.0/24 | 45,758 | 2026-09-10 12:41:48 |
| 203.135.20.0/24 | 45,745 | 2026-09-10 12:41:48 |
| 203.135.62.0/23 | 45,726 | 2026-09-10 12:41:48 |
| 203.99.188.0/24 | 45,719 | 2026-09-10 12:41:48 |
| 203.99.191.0/24 | 45,714 | 2026-09-10 12:41:48 |
| 203.135.5.0/24 | 45,642 | 2026-09-10 12:41:48 |
| 203.99.190.0/24 | 45,615 | 2026-09-10 12:41:48 |
| 58.181.114.0/24 | 45,608 | 2026-09-10 12:41:48 |
| 203.99.175.0/24 | 45,496 | 2026-09-10 12:41:48 |
| 221.120.198.0/24 | 45,393 | 2026-09-10 12:41:48 |
| 203.135.21.0/24 | 45,381 | 2026-09-10 12:41:48 |
| 182.184.112.0/24 | 45,357 | 2026-09-10 12:41:48 |
| 58.181.115.0/24 | 45,341 | 2026-09-10 12:41:48 |
| 203.99.165.0/24 | 45,256 | 2026-09-10 12:41:48 |
| 203.99.167.0/24 | 45,194 | 2026-09-10 12:41:48 |
| 203.135.29.0/24 | 45,144 | 2026-09-10 12:41:48 |
| 202.70.148.0/24 | 45,141 | 2026-09-10 12:41:48 |
| 203.99.166.0/24 | 45,059 | 2026-09-10 12:41:48 |
| 203.135.0.0/24 | 45,014 | 2026-09-10 12:41:48 |
| 203.128.255.0/24 | 45,013 | 2026-09-10 12:41:48 |
| 203.128.254.0/24 | 44,958 | 2026-09-10 12:41:48 |
| 202.70.149.0/24 | 44,946 | 2026-09-10 12:41:48 |
| 203.99.178.0/24 | 44,931 | 2026-09-10 12:41:48 |
| 203.135.19.0/24 | 44,914 | 2026-09-10 12:41:48 |
| 203.99.173.0/24 | 44,777 | 2026-09-10 12:41:48 |
| 203.128.252.0/24 | 44,761 | 2026-09-10 12:41:48 |
| 202.125.144.0/21 | 44,754 | 2026-09-10 12:41:48 |
| 203.99.174.0/24 | 44,616 | 2026-09-10 12:41:48 |
| 203.135.49.0/24 | 44,602 | 2026-09-10 12:41:48 |
| 203.135.55.0/24 | 44,600 | 2026-09-10 12:41:48 |
| 203.135.42.0/24 | 44,569 | 2026-09-10 12:41:48 |
| 119.156.136.0/22 | 44,554 | 2026-09-10 12:41:48 |
| 203.135.26.0/24 | 44,548 | 2026-09-10 12:41:48 |
| 203.99.177.0/24 | 44,503 | 2026-09-10 12:41:48 |
| 203.99.184.0/24 | 44,431 | 2026-09-10 12:41:48 |
| 203.99.172.0/24 | 44,430 | 2026-09-10 12:41:48 |
| 182.188.232.0/21 | 44,375 | 2026-09-10 12:41:48 |
| 203.135.54.0/24 | 44,355 | 2026-09-10 12:41:48 |
| 202.125.152.0/21 | 44,301 | 2026-09-10 12:41:48 |
Showing top 50 of 1,483 announced prefixes by sample volume.
Frequently Asked Questions
What is AS17557?
AS17557 is an Autonomous System Number assigned to Pakistan Telecommunication Company Limited. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS17557 announce?
AS17557 announces 3.73M IPv4 addresses distributed across 273 routed CIDR prefixes. The network is registered in Pakistan.
Who operates AS17557?
AS17557 is operated by Pakistan Telecommunication Company Limited. The organization is based in Pakistan. You can view all IP ranges and related ASNs on the organization page.
What country is AS17557 registered in?
AS17557 is registered in Pakistan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
