Bug Vanquisher

24 October 2007

Insider’s Scoop

Filed under: Fun, Intelligence :( ?? — Tanveer Badar @ 5:58 PM

Right after getting that DSL connection working, I was wondering how to find out the IP address of the modem. My own computer is behind it and not worth mentioning as it starts in public IP address range.

Then, it came to me and I posted a comment on this very own blog and there it was. Modem’s IP address. What was astounding was the fact that it started in class A. Before this moment, I never understood why Pakistan would have a class A address when the DNS servers are in class C. But this means that PTCL must have enrolled in regional authorities database to start dishing out broadband connections.

Further digging up www.who.is revealed that PTCL had acquired this network range in January 2007.

RegDate: 2007-01-17
Updated: 2007-01-24

And a visit to www.apnic.net further enlightened that

inetnum: xxx.xx.0.0 - xxx.xx.255.255

meaning there are 64009 connections available. With this additional information

address: PTCL Headquarters, 5th Floor New Building
country: PK
phone: +92-332-513-5995
e-mail: ahmed.imtiaz@ptcl.net.pk
nic-hdl: IAB1-PK
changed: ahmed.imtiaz@ptcl.net.pk 20070605
source: APNIC


  1. Tanveer,

    The ‘classes’ of IP addresses are long dead now. We now live in a world of slashes (/). APNIC, the regional RIR for Pakistan, like other regional RIRs, get its /8 addresses pools from IANA that are originally part of ‘returned’ IP addresses ranges by North American historic outfits. APNIC allocates addresses to its regional members (like PTCL) from within these newly allocated IP ranges.

    Hope this clarifies.

    Comment by Tee Emm — 25 October 2007 @ 9:47 AM

  2. Who knows it better than you! It is quite an honor for me that people like you are interested in my pointless blithering.

    I definitely need my network layer reworked :)! As I was writing that post yesterday I did think that 116.x.y.z/16 didn’t make any sense because 116 meant class A yet the network mask was /16. Must be CIDR then.

    Comment by Tanveer Badar — 25 October 2007 @ 11:14 AM

  3. […] course, I am. But this claim has been in serious jeopardy since last week days. Two corrections in less than a week days is a new low for someone who claims to be […]

    Pingback by Mirror Mirror! « Bug Vanquisher — 31 October 2007 @ 10:01 AM

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