Path: utzoo!attcan!uunet!husc6!spdcc!ima!johnl From: Telecom-REQUEST@XX.LCS.MIT.EDU (JSol) Newsgroups: comp.dcom.telecom Subject: TELECOM Digest V8 #100 Message-ID: <1094@ima.ISC.COM> Date: 14 Jun 88 16:01:14 GMT Sender: johnl@ima.ISC.COM Lines: 326 Approved: telecom-hack@ima.isc.com TELECOM Digest Monday, June 13, 1988 7:37PM Volume 8, Issue 100 Today's Topics: Chicago prefix names: 3-letter to 2-letter conversion (265 lines) CO generated noise in data Question ---------------------------------------------------------------------- From: David_W_Tamkin@cup.portal.com Subject: Chicago prefix names: 3-letter to 2-letter conversion (265 lines) Date: Sat Jun 11 21:32:55 1988 This is a list of the prefix names in effect in Chicago, Illinois, as of September 18, 1948, when dialing was changed from three letters to two letters plus a digit. It is intended to list only those in use in 1948, not all the named prefixes that were in use before the switch to numeric prefixes in 1960. I hope to submit those when I get more information about suburban prefixes. Four of the names in the first column debuted in the directory that announced the switch: Museum, Reliance, Uptown, and Wagner. Probably RELiance, UPTown, and WAGner were introduced as three-letter names between the publication of the previous directory and the changeover. However, that is unlikely for Museum, whose assigned digit does not match its third letter, since then customers assigned MUSeum would be changed to MUseum 4 after only a few months. Moreover, from then until the conversion to numeric prefixes, every named prefix installed in the city of Chicago mismatched on the third letter, both those consisting of additional digits to go with old names and those that had new names (BRoadway, LUdlow, MItchell, PRescott, and UNderhill). In the second column are the digits assigned to replace the third letter. Twenty-four prefixes (including MUseum 4) were assigned a digit that did not correspond to the third letter; I have indicated them with exclamation points. Ten others were assigned two digits apiece, generating ten additional prefixes, but in each of those cases one of the digits matched the third letter of the name. The third column shows the exchange that the prefix appears to have served, based on where it is used today or on what I could gather from directories of the time. In the cases of BRIargate, INTerocean, and LACkawanna, I know that wiring was from a suburban CO as indicated. I took the liberty of not repeating "Chicago-" before the names of the exchanges in this column. (A district is the area wired from a single CO, but an exchange is rather hard to define. It's an area that was considered a unity for setting rates and as such is still valid here for long-distance rates and for local calls placed from Central Telephone's service area in area code 312. Exchange boundaries are generally drawn along an amalgam of district boundaries and municipal borders.) Finally, the fourth column includes what happened to the numerical equivalent of the original three-letter prefix (and, if the digit did not match the third letter or if two digits were assigned, the numerical equivalent of the post- 9/18/48 version) if it is not still in use in the same area. Otherwise they are still there. (For example, COlumbus 1 as 261, both ESTebrook 8 and EStebrook 9 as 378 and 379, and MANsfield 6 as 626 are all in use in Chicago- Austin today.) Prefix new digit(s) Exchange Comments (present tense = 4/23/88) ABErdeen 4! Stewart 223 is BAldwin 3 in Grays Lake. ALBany 2 Humboldt AMBassador 2 Rogers Park ANDover 3 Franklin ARDmore 1! Edgewater 273 is BRoadway 3, Chicago-Rogers Park. ARMitage 6 Humboldt ATLantic 5 Oakland AUStin 7 Austin AVEnue 3 Kildare BAYport 1! South Chicago 229 serves the Chicago-Portsmouth exchange/Summit district overlap. BELmont 5 Humboldt BERkshire 7 Merrimac BEVerly 8 Beverly BIShop 7 Lafayette BITtersweet 8 Lakeview BOUlevard 8 Oakland BRIargate 4 Rogers Park Illinois Bell started to rename it BRoadway 4 but changed its mind. Until 1986 it was wired from the Evanston CO. BRUnswick 8 Humboldt BUCkingham 1! Lakeview 282 is AVenue 2 in Chicago-Kildare. BUTterfield 8 Hyde Park CALumet 5 Calumet CANal 6 Monroe There is now a Chicago-Canal CO. 226 is still CAnal 6 in Chicago-Monroe. CAPitol 7 Humboldt CAThedral 8 Franklin? CA 8-8000 was the time recording, which actually reached DEArborn 2-8000. In the mid-1970's the number for time was changed to 936-3636 and around 1981 to 976-1616. 228 is in Elk Grove Village. CEDarcrest 3 Beverly The new name BEverly 3 was phased in during 1958 and 1959. CENtral 6 Franklin CHEsapeake 3 Monroe CLIffside 4 Lafayette COLumbus 1! Austin 265 is in Chicago-Kedzie. COMmodore 4! Pullman 266 is in Chicago-Superior. CORnelia 7 Irving CRAwford 7! Lawndale 272 is CRestwood 2 in Northbrook. DANube 6 Calumet DEArborn 2 Franklin DELaware 7! Superior 335 is DEwey 5 in Hazel Crest (Homewood district/Harvey exchange overlap). DICkens 2 Humboldt DIVersey 8 Lakeview DORchester 3! Hyde Park 367 is in Libertyville, where 362 is EMpire 2. DRExel 3 Oakland EAStgate 7 Lakeview EDGewater 4 Edgewater ENGlewood 4 Stewart? It served the northern tip of what is now the Chicago-Stewart district and was dissolved in 1959. 364 now serves Elk Grove Village. ESSex 5! South Chicago 377 is in St. Charles. ESTebrook 8&9! Austin EVErglade 4! Humboldt 383 is EUclid 3 in Oak Park. FAIrfax 4 Hyde Park FINancial 6 Franklin FIRe 7 Wabash? Its only number was FIre 7-1313 for fire emergencies. After the change to 911 it became a Chicago-Wabash prefix. FRAnklin 2 Franklin FROntier 4!&6 Lafayette FRontier 4 was later dissolved. 374 is ESsex 4 in Chicago-South Chicago. 376 is FRontier 6 in Chicago-Lafayette. GRAceland 2&7! Lakeview GROvehill 6 Prospect HARrison 7 Wabash HAYmarket 1! Monroe 429 is in Tinley Park. HEMlock 6 Prospect HILltop 5 Beverly HOLlycourt 5 Rogers Park HUDson 3 Stewart HUMboldt 6&9! Humboldt HYDe Park 3 Hyde Park INDependence 3 Irving INTerocean 8 Pullman It was wired from the Blue Island CO until about 1953. IRVing 8 Irving JUNiper 8! Irving 586 is LUdlow 6 in the Summit district/ Chicago-Portsmouth exchange overlap. KEDzie 3 Kedzie The name was phased into KEystone 3 in 1959-62. The district and exchange are still named Chicago-Kedzie. KENwood 6&8! Oakland KEYstone 9 Irving KILdare 5 Kildare LACkawanna / TUxedo 9 Merrimac It served the River Grove district/ | NAtional 2 Chicago-Merrimac exchange overlap and at first| MErrimac 7 was canceled with the 1948 changeover. \BErkshire 7 Regular Chicago-Merrimac numbers were substituted at first but later were later NAtional 5 restricted to the Chicago-Merrimac district proper and NAtional 5 put into currently 589 and 625 service here. 522 is now LAwndale 2 (which name was part way phased into LAfayette 2 when numeric prefixes came in around 1960) in Chicago-Lawndale. LAFayette 3 Lafayette LAKeview 5 Lakeview LAWndale 1! Lawndale 529 is now LAwrence 9 in Roselle. The name LAwndale 1 was being phased into LAfayette 1 when numeric prefixes superseded names in 1960. The district is still named Chicago-Lawndale. LINcoln 9! Lakeview 546 is KImball 6 in Round Lake. LIVingston 8 Oakland LONgbeach 1! Edgewater 566 is LOcust 6 in Mundelein. MANsfield 6 Austin MERrimac 7 Merrimac MIChigan 2 Superior MIDway 3 Hyde Park MOHawk 4 Superior MONroe 6 Monroe MULberry 5 Kildare MUSeum? 4! Hyde Park 687 serves the Blue Island exchange/ Tinley Park district overlap. However, this one likely started as MUseum 4. NATional 2! Merrimac 628 serves Addison (Elmhurst exchange/ Lombard district overlap). NEVada 2!&8 Kedzie 632 is in Arlington Heights. NEvada 8 still serves Chicago-Kedzie as 638. NEWcastle 1! Newcastle 639 is MErcury 9 in Cary. NORmal / 2!& Stewart? \ NOrmal 2, with ENglewood 4 and \ 7 Hyde Park / WEntworth 6, served Chicago-Stewart's north tip, from 1948-55. 662 is now Waukegan's ONtario 2. 667 is still in Chicago-Hyde Park as NOrmal 7. OAKland 4! Oakland 625 is now NAtional 5 where LACkawanna had been used, in the Chicago-Merrimac exchange/River Grove district overlap. OFFicial 3 Franklin OFficial 3-9100 was Illinois Bell's business office. The prefix was used solely for their departments. 633 now serves Chicago-Monroe. PALisade 5 Kildare PENsacola 6 Kildare PLAza 2 Hyde Park POLice 5 Wabash? The only number was POlice 5-1313 for police emergency. After 911 came in, 765 became the Chicago-Wabash prefix for Chicago's main post office. PORtsmouth 7 Portsmouth PROspect 6 Prospect PULlman 5 Pullman RADcliffe 3 Stewart RANdolph 6 Franklin RAVenswood 8 Edgewater REGent 4 South Chicago RELiance 5 Portsmouth It may have started as REliance 5. REPublic 7 Prospect ROCkwell 2 Lawndale RODney 3 Newcastle ROGers Park 1!&4 Rogers Park SACramento 2 Kedzie SAGinaw 1! South Chicago 724 is PArk 4 in Glenview. SEEley 3&8! Monroe SHEldrake 3 Rogers Park SOUth Chicago 8 South Chicago \ That's no typo: these two conflicted. SOUth Shore 8 Hyde Park / SOuth Shore 8 was phased out by the mid-1960's. 768 phones today are in the Chicago-South Chicago exchange. SPAulding 2 Humboldt SPRing 7 Kildare STAte 1!&2 Franklin STEwart 3 Stewart SUNnyside 4! Edgewater 786 serves Chicago-Wabash. SUPerior 7 Superior TAYlor 9 Monroe TRIangle 4 Stewart TUXedo 9 Merrimac UPTown 8 Edgewater It may have started as UPtown 8. VAN Buren 6 Kedzie VICtory 2 Calumet VINcennes 6 Stewart VIRginia 7 Lafayette WABash 2 Wabash WAGner 4 Oakland It may have started as WAgner 4. WALbrook 5 Prospect WATerfall 8 Pullman WEAther 4! Wabash? WEAther 1212, later WEather 4-1212 (actually 934 and any four digits), was the weather recording. It was changed to 936-1212 in the early 1970's and to 976-1212 in 1981. 932 serves Lombard now, and 934 serves Palatine. WEBster 9! Wabash As above, 932 serves Lombard. WELlington 5 Lakeview WENtworth 6 Stewart? It served the northern tip of what is now the Chicago-Stewart district and was dissolved in 1958 or 1959. During the 1970's, 936-1212 was the weather recording and 936-3636 the time. 936 now serves Chicago-Franklin. WHItehall 4 Superior YARds 7 Lafayette At the time, a few suburbs had named prefixes, which could not, however, be dialed from Chicago phones as far as I know: one had to request connection through the appropriate operator. They were as follows, with the digits they later acquired: Berwyn GUnderson (4), STanley (8) Calumet City TOrrence (2, for a while TOrrence 6 in Burnham) Cicero OLympic (2 and 6), TOwnhall (3) Evanston DAVis (8), GReenleaf (5), UNIversity (4,later also 9) Forest Park FOrest (6, absorbing River Forest's FOrest 9 in 1976-77) Hammond, Indiana Russell and Sheffield (changed to WEstmore 1, 2, and 3) Lincolnwood Towers (integrated into Skokie's ORchard 3, 4, and 5) Oak Park EUclid (3, later also 6), VIllage (8) River Forest Forest (9, integrated into FOrest 6 in 1976-77) Waukegan MAjestic (3), ONtario (2) David_W_Tamkin@cup.portal.com || sun!portal!cup.portal.com!david_w_tamkin ------------------------------ Date: 13 JUN 88 12:10- From: MLS9597%RITVAX.BITNET@MITVMA.MIT.EDU Subject: CO generated noise in data Here is a strange problem that I am having with my local telco: Rochester Telephone Company: Most of the time that I use my data line I get a burst of a few garbage characters every fifteen minutes in cycles that are approximately 3,18,33 and 48 minutes after the hour. After three months of pain, the telco has narrowed the problem down, they think, to the remote optically linked CO that services my part of the exchange. As best they can tell, the switch does some internal report generation every fifteen minutes or so and somehow fouls up my line. They have gone back to AT&T ( I think it is a 5ESS but I am not sure) via a group called PECK to look into the problem. Has anyone else had anything similar to this where the switch causes periodic or occassional noise in a digital system CO? Can anyone tell me anything about the organization with the initials PECK? Mike Slade ( slade.wbst@xerox.com or mls9597@ritxvaxa.bitnet) ------------------------------ Date: Mon, 13 Jun 88 16:39 EST From: Howie Ducat Subject: Question Someone gave me this wonderful free Speakerphone from Northern Telecomm. It has a 6-line modular plug, not a four. Is there any way for me to make it work? Howie Ducat ------------------------------ End of TELECOM Digest *********************