BARS (NPAs & NXXs)

[coniglio]

i traced one of my trunk TNs and saw the following call:
DIAL DN 97864251045
MAIN_PM ESTD

The call originates from NPA 305 (Fl.). The DIAL DN area code is 786 (overlay of 305). You don't need to dial "1" first to dial 786 from 305(checked on nanpa.com). I then looked up NPA 1786 and NXX 786. My question is, which item is BARS looking at when making this call? It can't be looking at the NPA 1786 because they aren't dialing 1 first, right?

 

[steyler]

I would think that it is looking at the DMI of the RLI. Deleting the 1 before outpulsing the remaining digits to telco.

 

[coniglio]

That is my whole point. The DMI of which RLI? The RLI that NPA 1786 points to or the RLI that NXX 786 points to?

 

[steyler]

I am confused by the trace. I you ran the trace on a trunk then I wouldn't think that the 9 would be sent. If was actually the DN that was traced then I would say the RLI of of the NXX was used.

 

[coniglio]

i traced the TN of an outbound trunk. The number being dialed over that trunk was 97864251045. the office dials 9 to get out so I guess that's why the 9 is there. 786 is the NPA (area code). 425 is the NXX (exchange). This call originated from area code 305, which is a LOCAL NPA to 786. NOT a toll call. They do NOT need to dial "1" to reach NPA 425 from NPA 305. They just need to dial 9 to get out then the area code (no "1" is required). In their switch area code 786 is defined as 1786. I do not understand how this call knows how to route if 786 (WITHOUT the 1) is ALSO defined as an NXX because in the case of this call 786 is NOT an NXX but rather an NPA. Thank you.

 

[steyler]

Print out your SPNs. It may have been put over there because it is an overlayed NPA.

 

[coniglio]

i should've mentioned this before. I already checked my SPNs and there's nothing defined for 786. I am just confused as to what my PBX is looking at when a call is made to an NPA (area code) that doesn't require a "1" in front of it. And if 786 is ALSO defined as an NXX and you can't dial any NXXs without first dialing the area code, shouldn't I remove it from NXX? that doesn't help with the NPA issue, though.

 

[Nortellian]

Could it be using fcas tables?

 

[coniglio]

let me start over. I am in Miami area code 305. I lift my handset to dial my buddy who is in area code 786 which is local to 305. So I dial 9 for an outside line. Then I dial 786-555-5555. I do NOT dial a 1 after I dial 9. In my PBX I have NXX 786 and NPA 1786 defined. What is the FIRST thing my PBX is going to look at when I make this call? I don't see how it can look at NXX 786 because for this call 786 is an NPA and I don't see how it can look at NPA 1786 because I am not first dialing a 1. Thank you.

 

[Nortellian]

Are you sure 786 isn't also defined? Ld 90 prt net ac1 npa 786.

 

[sandyml]

Do you have an NPA defined as 786 (in addition to the NPA of 1786 and the NXX of 786)?

 

[coniglio]

no, NPA 786 is NOT defined. And i thought that would be impossible anyway, if 786 is defined as an NXX already

 

[Nortellian]

what are you talking about? Did you check in ld 90 like i suggested. R u in ld 87 checking fcas tables?

 

[coniglio]

checking the FCAS for what? my question is, if NPA 1786 is defined but you don't NEED a 1 to dial NPA 786 then what is the BARS looking at when I lift the handset to place my call? yes, I checked LD 90. That's where i found NPA 1786

 

[Nortellian]

i've seen people build npa's as 786 425. I find it hard to believe 786 isn't built somewhere. I mentioned the fcas because you said 786 was built as a nxx. Where is this defined? Good luck I'm out.

 

[coniglio]

yes, 786 IS an NXX as well. That is my question! is it possible that, even though on this particular call 786 is obviously the area code (NPA) the switch is actually looking at NXX 786 to route the call? and pointing it to the RLI that's defined for the NXX??

 

[Nortellian]

I got it. Maybe 978 is the area code.

 

[coniglio]

okay, but what is your answer? what do you mean "maybe 978 is the area code"? for the purpose of this call

DIAL DN 97864251045
MAIN_PM ESTD

it IS the area code! but is the PBX looking at NXX 978 to route this call?? once caller enters 9 they are in BARS. The NEXT thing they dial is 978 (NO 1 FIRST). so since NPA is defined WITH a 1, is my switch routing the call as though 786 is an NXX?

 

[Nortellian]

ld 90 prt net ac1 npa enter . print all npa's. look through them for the 786 xxx. the guess about them dialing 978 was just a guess and probably wrong. when you trace calls does the nine always appear in the front of the number. If so than it's just the access code and not part of the area code. I'm convinced 786 must be defined as an npa somewhere somehow. try printing the npa's and looking through them.

 

[coniglio]

okay, I'll print them all again. And you're correct, 9 is the access code. They dialed 9 (I made a mistake before, the NPA is 786, not 978. 9 is the BARS access code, 786 is the area code, 425 is the exchange). I'll check again. thanks