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Discuss Cold Calling numbers

Discussion in 'Report cold calling numbers here' started by CPR Call Blocker Support, Jan 29, 2014.

  1. MSeaTac

    MSeaTac New Member

    A tactic that I recently encountered is the caller spoofed my own number. It is probably a good move on their part because your first impulse is not to block your own number. However, after I received this a second time, I gave it #2 and it is gone forever.

    This is a never-ending war. What happens when spoofers get good enough information to enable them to start spoofing with numbers that I do not want to block? Not sure how I would deal with that.
  2. CPR Call Blocker Support

    CPR Call Blocker Support Technical Support Team Staff Member

    There is nothing wrong with blocking your own number as you cannot call yourself anyway.
    It is impossible for them to spoof legitimate phone numbers belonging to someone else.
  3. MSeaTac

    MSeaTac New Member

    Is there some technical reason they are unable to spoof legitimate number. After all, they were able to spoof my number, which is legitimate.
  4. Gigha

    Gigha New Member

    I have started to get calls from what I suspect are spoof numbers [1 or 2 a week now] The numbers are always only 10 digits long and are usually recorded messages about PPI or boiler replacement schemes [press button 2 or 9 to be removed from database - suspect number would be harvested and sold on as a contact if you make any response]. The numbers don't give any results when doing a Google search, tried calling back once and it was an invalid number. The numbers always have different area code, usually add them to my blocked list but they only seem to use the number once so doubt where its even worth doing this. I have tried reporting them to TPS / ICO but without a valid number or Company name there nothing that they can do.

    If only we could block 10 digit numbers !
  5. CPR Call Blocker Support

    CPR Call Blocker Support Technical Support Team Staff Member

    They will only be able to spoof numbers that aren't used (your own number)
    because you cannot call your own number. Other legitimate numbers will be used
    and broadcast the caller ID so won't be spoofed.
  6. CPR Call Blocker Support

    CPR Call Blocker Support Technical Support Team Staff Member

    You can BLOCK 10 digit numbers just press BLOCK NOW on them when they are calling.
    Keep doing this and if they start changing the numbers, they will still have the same spoofed
    area code but the last 5 or digits will likely change. Just add the first 5 or 6 digits as an area code
    to block them and all of their following changed set of numbers. The call blocker can block calls
    ranging from one digit to 16 digits.
  7. Gigha

    Gigha New Member

    The problem is that they probably only use the number once so blocking that number is ineffective [The call numbers never appear on "Who calls me from this number"]. The area codes are always different and cover the length and breadth of the country. I do block the calls but as stated previously they never use the same number again [randomly generated probably].

    When I said its a pity we could not block 10 digit numbers what I meant was that if the call number was only 10 digits long then it would be useful if the system could assume that it is an invalid number and automatically reject it [just thinking are there any valid 10 digit numbers in the UK phone system?]

    The real problem is the market in peoples contact details - while this exists these companies will find ways to get round any call barring technology. [I assume they only need to get a tiny response from the thousands of calls they make to build up a database of contact numbers that can be sold on, whether the quality of any such contacts list is worth anything is highly debatable]

    The CPR call blocker is definitely worth having as it has certainly blocked a lot of unwanted calls, is just a pity that some companies seem to be finding a way to defeat it [From my log of blocked calls over the last 6 months :- Withheld - 153, Voip - 72, Int - 46, 00 - 38]
  8. CPR Call Blocker Support

    CPR Call Blocker Support Technical Support Team Staff Member

    There is no way to defeat it, I can assure you. I have a global call simulator here in the office that generates all types of spoof numbers, caller ID text strings,
    payphone strings, random numbers, names etc and with ALL of our our programmable codes inputted, ALL of these will get blocked. I test them every day in the
    office and they work flawlessly. I own all of the CPR call blocker models as I get to keep one of the newer models when they come out for testing purposes when
    issues may arise on home phones. I am still using my v.103 model (earliest model we sell) which only blocks 100 numbers and I have everything programmed into
    it apart from area codes (v.103 doesn't block area codes). Up until 2 months ago, that unit worked flawlessly for 4 years. I then tested the v.104/5/6/7/8 and v.201/2
    models by blocking all variations of area codes that were being changed or slipped through. The calls kept coming through for a short while until I blocked all area codes
    they used (10 in total ranging from 100-109) and now they have completely stopped. I was getting 08434100100, 08434100101, 08434100102, 08434100103, 08434100104, 08434100105 etc.
    This could have went right up to 08434100999 and that would be 1000 numbers. But by blocking 08434100 I then blocked ALL variations of calls that changed after that
    number, so 100-999 would all count as 1 single area code block on my line. This works brilliantly and I haven't had one sales call in over 2 months. As I've said, our CPR
    Call Blocker works 100% flawlessly if used correctly, set up correctly and numbers/area codes inputted correctly. I hope this helps others in those situations?...
  9. Gigha

    Gigha New Member

    I still don't understand how I am supposed to stop these calls.

    I will give you a list of the calls for the last few weeks from my blocked list :-
    01122 41410
    01524 81151
    01455 61427
    01932 89141
    01225 62895
    01435 39473
    01794 97691
    01785 48268
    01787 51436
    01117 24597
    01365 84441
    01987 36562

    What am I supposed to enter into my 202 to stop any more of these ?
  10. CPR Call Blocker Support

    CPR Call Blocker Support Technical Support Team Staff Member

    01 will block them all but I understand that may not be feasible as all 01 calls will be blocked.
    Just manually block the full numbers listed. 11 numbers are hardly nothing. If they keep coming through with different variations, input the first 2,3,4,5,6,7 digits of the area code and prefix.
    Last edited: Aug 3, 2016
  11. Gigha

    Gigha New Member

    11 unwanted calls over a few weeks is more than "hardly nothing" if I have invested in one of your call blocking devices!

    So basically you are saying that a company that uses spoof numbers cannot be blocked.
    Last edited by a moderator: Aug 3, 2016
  12. CPR Call Blocker Support

    CPR Call Blocker Support Technical Support Team Staff Member

    I've told before, ALL numbers can be blocked, read my posts and block them as I've advised.
    If they keep changing the numbers block the numbers up until they start changing the digits around. I can't put it any simpler.
  13. Gigha

    Gigha New Member


    I fully understand how to block calls - I have nearly 100 on my blocked list already.

    What you have failed to explain is how to block calls from a company that is generating spoof numbers. They may actually be generating and using thousands of these numbers each day, the CPR call blocker will never be able to block these calls as the number will only ever be used once!
  14. CPR Call Blocker Support

    CPR Call Blocker Support Technical Support Team Staff Member

    I have explained this time and time again. I can't put it any clearer, I'm afraid.
    Companies may change their numbers but it doesn't matter as you can program 2,3,4,5,6,7,8,9 +
    digits so input the area codes they are spoofing plus the exchanges up until the numbers change.
  15. Orca

    Orca New Member

    Call from a marketing company on behalf of Shepards Friendly? Duly blocked : 01134290038. Just started using the V5000 model.
  16. Orca

    Orca New Member

    I understand that over 5000 numbers are already blocked on this model. Not sure if withheld, private, Unknown, international, out of area, and unavailable callers are all already blocked, or do I have to do that myself? If I do, I have the codes.
  17. CPR Call Blocker Support

    CPR Call Blocker Support Technical Support Team Staff Member

    You have to block those yourself. The 5000 numbers will be legitimate numbers
    from nuisnce callers not anonymous type callers. I hope this helps?...
  18. Orca

    Orca New Member

    Thanks for info Kevin. Have only had to block two numbers in past two weeks. The silence with no unwanted calls day after day is bliss.
  19. CPR Call Blocker Support

    CPR Call Blocker Support Technical Support Team Staff Member

    Your welcome. I'm glad you're happy with it.
  20. CPR Call Blocker Support

    CPR Call Blocker Support Technical Support Team Staff Member

    Here are some more numbers reported by a USA customer.

    (202) 754-8675
    (202) 754-8770
    (202) 754-8807
    (213) 610-8851
    (214) 283-1316
    (215) 804-3061
    (216) 923-9158
    (216) 923-9159
    (240) 318-1508
    (240) 318-1627
    (240) 473-1473
    (270) 945-9093
    (301) 202-1001
    (301) 242-9209
    (301) 327-4833
    (301) 358-4804
    (301) 725-2786
    (301) 758-4430

    (301) 837-2490
    (301) 837-2493
    (301) 844-3204
    (301) 957-2272
    (312) 586-7042
    (360) 322-6663
    (360) 322-6687
    (360) 470-7077
    (360) 795-7855
    (402) 491-2800
    (410) 220-0436
    (410) 284-0427
    (410) 469-1635
    (410) 480-1636
    (410) 528-7761
    (410) 536-4205
    (410) 554-2423
    (410) 768-9400
    (410) 833-0080
    (410) 979-7208
    (412) 622-7386
    (415) 200-4748
    (417) 827-3821
    (443) 276-0250
    (443) 453-8550
    (443) 991-1620
    (469) 238-7956
    (510) 251-9050
    (541) 200-3514
    (571) 921-4847
    (602) 753-5621
    (646) 558-6755
    (646) 558-6788
    (667) 207-8186
    (703) 596-5610
    (706) 805-1775
    (712) 823-8539
    (724) 454-4523
    (727) 842-8763
    (732) 558-9622
    (800) 296-1122
    (800) 459-8387
    (800) 477-4679
    (844) 310-2227
    (855) 280-4733
    (855) 328-9062
    (855) 677-4287
    (866) 219-2430
    (866) 419-5000
    (888) 285-9984
    (888) 309-7325
    (888) 355-0236
    (888) 445-8787
    (888) 449-3609
    (888) 702-8423
    (901) 327-4833
    (904) 486-5300
    (972) 502-9798
    (980) 265-8869

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