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Autonomous System

AS17557 · Pakistan Telecommunication Company Limited

Overview

AS17557 is announced on the Internet: RIPE RIS route collectors currently see 1,298 IPv4 prefixes and 7 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 3,853,824 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 92 upstream neighbours (transit providers or peers) and 862 downstream neighbours (customers or networks it carries). Its most visible upstreams are Zain Omantel International FZ-LLC (AS8529), TM TECHNOLOGY SERVICES SDN. BHD. (AS4788), and Hurricane Electric LLC (AS6939). AS17557 was assigned by APNIC, and its registration country is Pakistan.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:59 PM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 39.32.0.1

The trace goes to 39.32.0.1, the first address of 39.32.0.0/11. An address picked inside a prefix may not answer (nothing listens there, or the network filters probes): the trace then shows the path up to the last network that replies.

Announced prefixes

IPv4 prefixes (1,298 prefixes)

PrefixAddresses
38.211.45.0/24256
39.32.0.0/112,097,152
39.32.0.0/1816,384
39.32.64.0/1816,384
39.32.128.0/1816,384
39.32.128.0/198,192
39.32.160.0/204,096
39.32.192.0/1816,384
39.33.0.0/1732,768
39.33.128.0/1816,384
39.33.192.0/198,192
39.33.224.0/198,192
39.34.0.0/198,192
39.34.32.0/204,096
39.34.48.0/204,096
39.34.64.0/198,192
39.34.96.0/221,024
39.34.100.0/221,024
39.34.104.0/221,024
39.34.108.0/221,024
39.34.112.0/221,024
39.34.116.0/221,024
39.34.120.0/221,024
39.34.124.0/221,024
39.34.176.0/212,048
39.34.192.0/1816,384
39.35.0.0/1816,384
39.35.64.0/1816,384
39.35.128.0/1816,384
39.35.192.0/198,192
39.35.224.0/204,096
39.35.240.0/212,048
39.35.248.0/212,048
39.36.0.0/1732,768
39.36.128.0/1816,384
39.36.192.0/1816,384
39.37.0.0/1732,768
39.37.128.0/1816,384
39.37.192.0/198,192
39.37.224.0/198,192
39.38.64.0/198,192
39.38.96.0/212,048
39.38.104.0/212,048
39.38.112.0/204,096
39.38.128.0/204,096
39.38.144.0/221,024
39.38.148.0/221,024
39.38.152.0/23512
39.38.154.0/23512
39.38.158.0/24256
39.38.159.0/24256
39.38.160.0/212,048
39.38.168.0/212,048
39.38.176.0/204,096
39.38.192.0/204,096
39.38.208.0/212,048
39.38.216.0/23512
39.38.220.0/23512
39.38.223.0/24256
39.38.224.0/24256
39.38.226.0/23512
39.38.228.0/23512
39.38.230.0/23512
39.38.232.0/212,048
39.38.240.0/212,048
39.38.248.0/212,048
39.39.0.0/1732,768
39.39.39.0/24256
39.39.128.0/212,048
39.39.136.0/212,048
39.39.144.0/212,048
39.39.152.0/212,048
39.39.160.0/212,048
39.39.168.0/212,048
39.39.176.0/212,048
39.39.184.0/212,048
39.39.192.0/212,048
39.39.200.0/212,048
39.39.208.0/212,048
39.39.216.0/212,048
39.39.224.0/212,048
39.39.232.0/212,048
39.39.240.0/212,048
39.40.0.0/13524,288
39.40.0.0/1816,384
39.40.128.0/1816,384
39.40.192.0/204,096
39.40.208.0/204,096
39.40.224.0/198,192
39.41.0.0/1732,768
39.41.128.0/1732,768
39.42.0.0/1732,768
39.42.128.0/204,096
39.42.144.0/212,048
39.42.160.0/212,048
39.42.176.0/221,024
39.42.184.0/23512
39.42.186.0/23512
39.42.188.0/23512
39.42.190.0/23512

Showing the first 100 of 1,298, in address order. Complete list on RIPEstat

IPv6 prefixes (7 prefixes)

Prefix
2001:dec:8000::/48
2404:7000::/32
2404:7000:140c::/48
2404:7000:140d::/48
2404:7000:b504::/48
2404:7000:b505::/48
2404:7000:b506::/48

Neighbours

Upstreams (transit or peers) (92)

ASNetworkVisibility
AS8529Zain Omantel International FZ-LLC17,638
AS4788TM TECHNOLOGY SERVICES SDN. BHD.12,331
AS6939Hurricane Electric LLC11,045
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC10,238
AS1299Arelion Sweden AB6,242
AS7473Singapore Telecommunications Ltd4,813
AS3356Level 3 Parent, LLC4,574
AS3491PCCW Global (HK) Ltd.4,267
AS174Cogent Communications, LLC3,931
AS6762TELECOM ITALIA SPARKLE S.p.A.2,627
AS2914NTT America, Inc.1,098
AS34549meerfarbig GmbH & Co. KG832
AS34019Hivane Association730
AS20485Joint Stock Company TransTeleCom671
AS34927iFog GmbH638
AS5405Inter.link GmbH589
AS25091IP-Max SA550
AS34177Celeste SAS550
AS1103SURF B.V.537
AS3935131173 Services AB524
AS2497Internet Initiative Japan Inc.519
AS8298IPng Networks GmbH504
AS33891Core-Backbone GmbH502
AS29691Nine Internet Solutions AG484
AS8758Iway AG440
AS24961WIIT AG437
AS35280F5 Networks SARL434
AS14840BR.Digital Telecom391
AS12779IT.Gate S.p.A.377
AS48362Stadtwerke Feldkirch362

The 30 most visible of 92.

Downstreams (customers) (862)

ASNetworkVisibility
AS138423CMPak Limited13,215
AS139820HG TELECOMMUNICATION PRIVATE LIMITED9,456
AS24499Telenor Pakistan7,432
AS132165Connect Communications6,363
AS137561WAYLINK3,897
AS131284Etisalat Afghan3,670
AS28910"Uzbektelekom" Joint Stock Company3,646
AS141031Connect Communication3,486
AS23674Nayatel (Pvt) Ltd2,890
AS138322Afghan Wireless Communication Company2,840
AS58895-1,839
AS58470-1,832
AS141023-1,788
AS140607-1,772
AS138915Kaopu Cloud HK Limited1,481
AS23888-1,436
AS59257-1,285
AS9541-1,225
AS6939Hurricane Electric LLC1,175
AS8529Zain Omantel International FZ-LLC1,153
AS137047-1,123
AS24435-1,064
AS137910-1,017
AS17539-977
AS21859Zenlayer Inc970
AS45773-965
AS56167-964
AS138926Netpoint IT & Communications Pvt. Ltd930
AS151333-883
AS55816-866

The 30 most visible of 862.

194 more neighbours appear on both sides of this network depending on the path, so they are counted in neither list.

Visibility is RIPEstat's count of how often the route collectors observed the link. It compares neighbours with each other; it is not a traffic volume.

How to read this page

An Autonomous System (AS) is a network run under one routing policy: an internet provider, a cloud, a content network, a university. Each one has a number, its ASN, assigned by a regional registry (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC), and uses BGP, the protocol networks use to tell each other where addresses are, to announce the blocks of addresses it delivers to.

A prefix such as 203.0.113.0/24 is a block of addresses: the number after the slash says how many bits are fixed, so a /24 holds 256 IPv4 addresses and a /16 holds 65,536. Networks often announce a large block and smaller pieces of it at the same time, which is why the address total counts each address once.

Neighbours come from the paths themselves. A network that appears just before this one in a path, on the collector's side, is an upstream: a transit provider or a peer. One that appears just after it is a downstream, usually a customer. Peering at an internet exchange also shows up as an upstream, so the upstream list is not a list of paid transit.

The data comes from RIPEstat, run by the RIPE NCC, which gathers the routing tables of hundreds of networks through its RIS route collectors. This page reads it when it is visited and keeps it for 12 hours at most; the BGP viewer reads it live.

Frequently asked questions

How do I find the ASN of an IP address?
Type the address in the BGP viewer: it shows the prefix that covers it, the AS that originates that prefix and the paths seen towards it. A traceroute also names the network of each hop, so you can see every AS a connection crosses.
Why does one company have several ASNs?
Large operators split their network by region, by activity or by history: a cloud may use one number for its backbone and another for a region, and every acquisition brings its own numbers. Each number has its own page, with its own prefixes and neighbours.
Why do prefix counts differ from one site to another?
Each source sees the routing table from different collectors, at a different time, and counts differently: some include prefixes withdrawn in recent weeks, some merge a block and its pieces. This page counts the prefixes RIPE RIS collectors see originated by the network at the end of the latest two-week window, and counts each IPv4 address once.
Is this the list of IP ranges of a cloud provider?
It is what its networks announce, which is what the Internet routes to them. Many providers also publish an official list of ranges per service and region; that list is the reference for firewall rules, because a range can be announced before it is used, or announced by another of their AS numbers.