Rate Centre Lookup

21,763 rate centres across the United States and Canada. A rate centre is the telephone exchange area a number is homed to — the thing that decides which area codes can serve an address, and whether a call between two points is local.

10601–10650 of 21,763
Rate centreRegionArea codesIncumbentLATALIRBlocksSwitches
Le CheeAZ928NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM (4449)980—9LECHEE, ST MICHAELS, STMCAZXE6MD +2
Le ClaireIA563WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS (1170)634—20DVNPIADTGMD, DVNPIADTX5X, DVNPIAEA9MD +4
Le GardeurQC450, 579BELL QUEBEC (8050)88880501416LASNPQAD1MD, VILLE LE GARDEUR, VLGDPQ014MD +2
Le GrandCA209, 350PACIFIC BELL (9740)738—46LE GRAND, SKTNCA01X6Y, SKTNCA01X6Z +8
Le GrandIA641WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH (1167)632—13BOONE, DESMIADTXJX, GRNLIAXCMMD +4
Le MarsIA712FRONTIER COMMUNICATIONS OF IOWA, INC. (1127)630—50LE MARS, LMRSIABR1MD, LMRSIACA1MD +12
Le RaysvillePA570COMMONWEALTH TELEPHONE COMPANY LLC (0161)232—20DLLSPAXD6MD, LE RAYSVILLE, LWBGPAXL1MD +5
Le RoyIL309FRONTIER NORTH, INC. - IL (1015)366—28BLTNILATVMD, BLTNILATYMD, BLTNILTS3MD +10
Le RoyMI231MICHIGAN BELL TEL CO (9323)348—24GDRPMIBL04Z, GDRPMIBL15Z, GDRPMIBL36Z +6
Le RoyNY585FRONTIER TELEPHONE OF ROCHESTER, INC. (0121)974—31BFLONYFRXBY, LE ROY, ROCHESTER +12
Le SueurMN507QWEST CORPORATION (9631)628—79GLVYMNORZMD, LE SUEUR, MINNEAPOLIS +9
LeaburgOR458, 541QWEST CORPORATION (9638)670—25EUGNOR53KMD, EUGNOR53QMD, EUGNOR53XCX +6
LeachvilleAR870BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC (1143)528—11JNBOARMAX1X, JONESBORO, LEACHVILLE +2
Lead HillAR870NORTHERN ARKANSAS TEL. CO. (1713)528—1LEAD HILL
LeaderMN218CONSOLIDATED TEL. CO. (1373)636—1LEADER
LeaderSK306, 639SASKTEL (8091)8888091076BURSTALL, LEADER, LEDRSK010MD +2
Leading TicklesNL709NEWFOUNDLAND TELEPHONE CO., LTD. (8085)8888085051LEADING TICKLES
LeadoreID208, 986CENTURYTEL OF IDAHO, INC. DBA CENTURYLINK (2225)652—25BOISIDMAX2X, BOISIDMAX7Y, BOISIDMAXEY +4
LeadvilleCO719QWEST CORPORATION (9636)658—41CACYCOCA4MD, CLSPCO11X8X, CLSPCO11XVX +10
LeadwoodMO573SOUTHWESTERN BELL (9533)520—20LEADWOOD, OLVEMOAX0MD, ST LOUIS +5
Leaf RapidsMB204MANITOBA TELEPHONE SYSTEM (8088)8888088081LEAF RAPIDS
Leaf RiverIL779, 815LEAF RIVER TELEPHONE CO. (1045)364—3DEKALB, DKLBILRSNMD, LEAF RIVER
League CityTX281, 346, 713, 832FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (4344)560—128DCSNTXXAJMD, DCSNTXXAPMD, DICKINSON +14
LeakesvilleMS601, 769SOUTHEAST MISSISSIPPI TEL. CO. (3301)482—21HATTIESBURG, HTBGMSMAX6X, JACKSON +5
LeamingtonIL618SHAWNEE TEL. CO. (1025)362—1ROSICLARE
LeamingtonON226, 519, 548BELL ONTARIO (8051)88880512022LEAMINGTON, LKSHONAL0MD, LMTNON071MD +10
LeanderTX512, 737SOUTHWESTERN BELL (9533)558—208AUSTIN, AUSTTXEE7MD, AUSTTXGR03Z +21
LearyGA229BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417)444—21ALBYGAMA1MD, ALBYGAMA3MD, ALBYGAMAXHX +2
LeasburgMO573BRIGHTSPEED OF MISSOURI, LLC (9787)520—14LEASBURG, ST LOUIS, STLSMO05RMD +1
LeaskSK306, 639SASKTEL (8091)8888091034LEASK, LESKSK010MD, MARCELIN
LeatherwoodKY606WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON (9690)466—13DAVLKYMAX7X, GRTWKYMAJMD, LEATHERWOOD +2
LeavenworthIN812, 930FRONTIER NORTH, INC. - IN (0779)462—13LEAVENWORTH, LSVLKYAP41Z, NWALIN01XAX +3
LeavenworthKS913SOUTHWESTERN BELL (9533)524—210INDPMOBHBMD, INDPMOXCGT0, KANSAS CITY +17
Leavenworth LansingMO816, 975SOUTHWESTERN BELL (9533)524—26KANSAS CITY, KSCAMO961MD, KSCCMOFO2MD +7
Leavenworth MetroKS913SOUTHWESTERN BELL (9533)524—18KSCYKSVD0MD, KSCYMO55X2Z, KSCYMO55XXX +4
LebanonCT860, 959SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT (9147)920—43CHESHIRE, HARTFORD, HRFRCT0379Z +12
LebanonIL618ILLINOIS BELL TEL CO (9329)520—37BLVLILAJ3MD, COVLILCL0MD, COVLILCLPMD +13
LebanonIN765INDIANA BELL TEL CO INC (9325)336—112INDIANAPOLIS, IPLSIN01XDZ, IPLSIN01XJZ +17
LebanonKS785RURAL TEL. SERVICE CO., INC. DBA NEX-TECH (1826)534—11TPKAKSJAX2Z, VICTORIA
LebanonKY270WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON (9690)462—79EZTWKYXA5MD, EZTWKYXAXBX, EZTWKYXAXLX +8
LebanonME207CONSOLIDATED COMM OF NO. NEW ENGLAND-ME (5111)120—10PORTLAND, PTLDMEFO16Z, PTLDMEFO31Z +3
LebanonMO417EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO (1811)522—94BASNMOXAXJX, LBNNMOBM0MD, LEBANON +12
LebanonNE308HARTMAN TEL. EXCH., INC. (1557)646—1BENKELMAN
LebanonNH603CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (5113)122—67DRRYNHBC1MD, LEBANON, MANCHESTER +9
LebanonNJ908BRIGHTSPEED OF CENTRAL NORTH CAROLINA, LLC (0138)224—58CLTNNJXJXAX, HCKNNJHKX4X, JERSEY CITY +10
LebanonOR458, 541CENTURYTEL OF OREGON, INC. DBA CENTURYLINK (2395)670—89CSBYORXXIMD, EUGNOR144MD, EUGNOR530MD +10
LebanonPA223, 717VERIZON PENNSYLVANIA, INC. (9208)226—315CRLSPAXCX2X, HARRISBURG, HRBGPAGU0MD +24
LebanonSC843HOME TELEPHONE ILEC, LLC (0527)436—13CHTNSCDT20Z, CHTNSCDTXQY, CHTNSCFU8MD +2
LebanonSD605VENTURE COMMUNICATIONS COOPERATIVE (1680)640—1HIGHMORE
LebanonTN615, 629BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (9419)470—141LBNNTN071MD, LEBANON, NASHVILLE +16

Searching for a place, not a rate centre?

Many places are localities inside a larger rate centre and hold no numbers of their own, so they are not listed above — Clinton, Maryland is part of Washington Zone 16. The Area Codes tab resolves a place name through to whichever rate centre actually serves it.

What These Terms Mean

The fields shown on the area code, rate centre and LATA pages, in plain language.

Rate centre — The exchange area a number belongs to
The telephone exchange area a block of numbers is homed to, and what decides whether a call between two points is local. It is not a city: many places are localities inside a larger rate centre and have no numbers of their own. Clinton, Maryland is part of the Washington Zone 16 rate centre, so its numbers are 227, 240 and 301.
NPA-NXX — Area code and prefix
The first six digits of a North American number. NPA is the three-digit area code, NXX the three-digit prefix — so 416-200 is NPA 416, NXX 200. Knowing the NPA-NXX identifies the exchange a number was issued from.
Thousands-block — A prefix split into ten pieces
A prefix holds 10,000 numbers, which is more than most carriers need, so prefixes are pooled: split into ten blocks of a thousand and handed to different carriers. The block digit is the fourth digit of the number, and A means the whole prefix went to one carrier. This is why 512 has 783 prefixes but 6,011 rows — 512-555-1xxx and 512-555-2xxx can belong to different companies.
OCN — The carrier holding the block
Operating Company Number — a four-character code identifying the carrier of record for a block. Two carriers can share a brand name and still have different OCNs, which is why the tables show the number alongside the name.
ILEC — The incumbent operator for the area
Incumbent Local Exchange Carrier — the established local operator for a rate centre, usually the former Bell company. It differs from the OCN whenever a block belongs to a competitor: a Toronto block can be held by Bell Cellular while the incumbent for the rate centre is Bell Ontario.
LATA — Where a call stops being local
Local Access and Transport Area — the region a call is routed within before it becomes long-haul. The boundaries date from the 1984 Bell System breakup and still shape how calls are routed and rated. A LATA is three digits, though some rate centres are published with a two-digit sub-code appended, shown here as 460.17. Browse every LATA.
LIR — The Canadian equivalent, roughly
Local Interconnection Region — how Canadian carriers divide territory for exchanging traffic. It only applies in Canada, so this field is blank on every US record by definition rather than by omission.
Switch / CLLI — The equipment serving the block
The telephone switch a block is routed through, named by its CLLI code — an eleven-character identifier where the first characters encode the place, as in TOROON01DS0 for Toronto. A switch typed POI is a point of interconnection, where carriers hand traffic to each other rather than serve subscribers directly.
Overlay and split — The two ways to add an area code
A split divides a region and gives part of it a new code, so existing numbers change. An overlay adds a code on top of the same territory, so nobody has to change a number — but everyone has to dial ten digits, since two numbers in the same place can now differ only by area code. 786 overlaid 305 in 1998; 941 split from 813 in 1995.

One limitation worth knowing. All of this describes the block a number was issued from. Number portability means a number can be carried to another carrier while keeping its digits, so the carrier shown is the carrier of record for the block, not necessarily whoever serves that specific line today. Nothing in this data can tell you which — only a live portability lookup can.