atcomsystems.ca/forum Forums Wiring - Telecom Carriers - Trunks & Services Telecom Service & Providers Unknown Circuit IDs

I have a customer with Point-to-Point Ciruits taht he has no record of paying for and therefore cannot figure out who the carrier is. One of the circuits is down and we need to identify who to contact fo support. I have contact to primary local carrier (Bellsouth) and they say its not thiers and they do not know who owns these circuits. Bellsouth owns all the copper in this area. I have contat several other major carriers and they have said it's not thiers either. Here are the circuit IDs:

80DH2X544088DS1
80DH2X544091DS1

Any help would be appreciated and thanks in advance....

If BellSouth owns all of the copper, then someone is leasing circuits from them. They must have a way to track the address to find out the customers they are serving there.

You may need to try contacting BellSouth's wholesale division, tell them your story, be very nice to them and they might be willing to help you. Those numbers don't look like BellSouth or any Bell company's for that matter.

The circuit ID looks some type of long haul carrier. See if you can find the lec ID XX HGXX
or something similar

Bill is correct. A LEC circuit number would look more like this:

36HCGS304389

The first two digits are the last two digits for the LATA in the area where the circuit terminates. In the above example, this circuit is in LATA 236. Maybe this will help you in digging deeper. Once you have this number, then BellSouth will have a much easier time in tracking the carrier down for you.

I'm beginning to think this is a reseller. I've search everything I know and can't come up with the id you've provided. Hopefully our mod for this category will have something for you.

Are you sure that's "DH2X" and not "DHZX"? Just a thought.

HG?X has me thinking long haul..but not sure what carrier, like Bill said possible reseller

I have seen DHZA...on Ameritech (now AT&T) stuff...

DH circuits are usually AT&T (at least old AT&T) but there was no number infront of the DH, except for very old circuits. I've never seen an AT&T circuit with a DH2X or ZX, usually DHEC, DHEA, DHEZ. Those are the most common.

Yep...DHEC is what I still see a lot of.

Sure would help to know what part of the “USA” you’re located in to assist further. :rolleyes: If this is a "point to point" is there another LEC that serves the other end?

The “DH” service code tells me a couple things… First it’s a non-access circuit identifier. That ID belongs to a LEC not an access carrier (long haul) carrier. And it’s ds1 rate of some sort. “Point to point” maybe or maybe a cyber DS1 (fancy dancy sort of PRI.)

The “2” in the 5th position may or may not be accurate… The modifiers in the non-access world have a “home-grown” approach by many companies. I would tend to think it’s more likely a “Z” or “E” also, but cain’t say that for sure considering this is the non-access world of naming.

Contact Bell South and ask first if “80” (the prefix of the circuit id) is THEIR market area identifier. If it is their’s, then press them to locate the circuit information by the serial number (“544088” & “544091”.) You average service rep that answers the phone may be able to do it BUT you may have to press for a supervisor to investigate. If “80” is NOT a BellSouth market area… Uh oh, then! :scratch: … You’ll have to determine what other LEC might be servicing the region.

Good luck!

I would suggest getting all the customers bills together and making sure you have two months of all the bills they have recieved for the past six months. This is going to help you in determining if you have the circuit bill. Perhaps a reseller is billing for the Bellsouth leg instead of Bellsouth. We have been able to determine the billing by using the bill in most every case.

Please let me know how it works out.

Kind Regards,

Thanks for all the suggestions, and I think I might have missinterpreted the ID:

80DHZX544088

It very well could be a Z instead of a 2...Does that help anyone identify it....

Knowing it’s a “Z” is not going on here any, I don’t think… It may very well help you when contacting BellSouth again. If you were not giving a correct ckt id, that would probably ‘splain why they’re not finding it.

The 5th and 6th positions in the circuit id are used in describing billing and tariff information… It would be much with your questions on here.

What cities/exchanges is this customer in???? This info could help me (and several others) determine what other LEC’s may be operating in that area.

The 1st two numbers of the circuit id known as the prefix are not in many cases the LATA. You are correcting in stating, there IS a direct connection between prefix and LATA…. and the prefix in SOME cases will match the last two digits in the LATA. That’s not by accident either but the rule is not as simple as the prefix is the last two of the LATA.

LEC’s will have different prefixes for Access (cross-lata) and non-access (intra-lata) circuits in the same LATA. So, every LEC within an area will have a minimum of TWO (maybe more) pre-fixes in one LATA.

Different LEC’s operating within the same LATA will be required to use different prefixes also.

For example, here in the area where I live and work there are 3 ILEC’s operating in the same LATA. ATT/SBC uses 3 prefixes in the area (one DOES match the last two of our LATA.) My company uses two prefixes and a third ILEC also uses two different prefixes. So, of the 7 in play here only one matches and will identify the LATA.

To respond to 1 of the questions, both circuits start and end in Memphis TN. They are actually close enough they may even be in the same Central Office....

That would about 98% make it a local Teleco or Clec circuit ID. I am about as certain it's not Bell South. The suggestion to find the billing for the circuit was the best one you have at this point.

Thanks for all the help, come to find out it is a Bellsouth Circuit. They swore it was not even close to one of thier IDs a few days ago. Called them back with the minor change in the ID and miraculously it is thiers....

Thanks for letting us know. I've never seen a LEC ID with a DHXX in it.

Interesting thing...a customer had an existing smartjack in their house...previous owner had a T1. I wanted to see if the line was still active, so I called SBC. They did not even need the prefix, which in this case was DHZA. They just needed the six digits...

You must have contacted a repair/maintenance person, where I’m assuming the original poster contacted a business office. Different support systems availed between those two groups as well as a different level of… level of… uh… training.

Oh Jeff… Let’s fix you terminology a bit … the prefix is the two digit numeric preceding the circuit id. The “DHZA” would be the service code (DH) and the service code modifiers (ZA.)

This might work if you have the time to waste.
Try tracing out the pairs to the cable that brings them in from the street. write down the cable and pair information and keep it in your car. If you see a telco repair truck at another site or whatever, grab the guy/girl and beg them for info.
Chances are that someone can tell you who is paying for the pairs to get to your site.

It's the long way around, but it has worked for me once.