This happens a lot on FX charts because so many banks and institutions contribute to most feeds you have these outlier (errors) quotes.
Below is the banks and institutions eSignal gets from their provider GTIS. Sorry it takes up so much room.
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ABAA
ABN Amro, Amsterdam
GE
ADP/GTIS, London
GT
ADP/GTIS, New York
GART
ADP/GTIS, Tokyo
AD
Allied Irish Bank, Dublin
AM
Akmos Trade, Moscow
AN
American International Group, New York
ASAT
Asahi Bank, Tokyo
AB
Australia New Zealand Banking Group, Sydney
AXIP
AXIME-Scope Software Provider
BI
Banco Commerciale Italiana, London
BESP
Banque Escompte
BE
Banco Espirito Santo e Comercial de Lisboa, London
BK
Bangkok Bank
AS
Bank of America, Singapore
AT
Bank of America, Tokyo
BKCH
Bank of China, Hong Kong
BW
Bank of New Zealand, Wellington
BAIP
Banque Indosuez, Paris
BAIS
Banque Indosuez, Stockholm
BX
Banque Nationale de Paris, Hong Kong
BP
Banque Nationale de Paris, New York
BS
Banque Nationale de Paris, Singapore
NP
Banque Nationale de Paris, Sydney
BPAP
Banque Paribas
BN
Banque Worms, Hong Kong
BL
Barclays Bank, London
BART
Barclays Bank, Tokyo
BC
Barclays Bank, New York
BDBP
BIP-Dresdner Bank
BNPP
BNP Finance
BBAA
British Bankers Association
BTMT
BTM Bank, Tokyo
CDDP
Caisse des Depots, Paris
IT
Canadian Imperial Bank of Commerce, Toronto
CMSN
Capital Market Services, New York
CJ
Cariplo Bank, NYC
CI
CCM International, New York
HT
Chase Manhattan Bank, Tokyo
KL
Chemical Bank, London
KN
Chemical Bank, New York
CMBT
Chuo Mitsui Bank, Tokyo
CD
Citibank, Dublin
CF
Citibank, Frankfurt
CK
Citibank, Hong Kong
CL
Citibank, London
CN
Citibank, New York
CG
Citibank, Singapore
CS
Citibank, Sydney
CT
Citibank, Tokyo
CO
Citibank, Toronto
CBAL
Commonwealth Bank of Australia, LDN
CB
Commonwealth Bank of Australia, Melbourne
MT
Commonwealth Bank of Australia, Sydney
CFKS
Consensus FK, Stockholm
CPRP
CPR Intermediation
CAGP
Credit Agricole, Paris
CCOP
Credit Commercial
CC
Credit Commercial de France, Hong Kong
CICP
Credit Industrial et Commercial
CRLP
Credit Lyonaiss, Paris
CZ
Credit Suisse, Zurich
CH
Currency Management Corp.
CM
Currency Management Corp, London
GF
DG Bank, Frankfurt
DS
Dah Sing Bank, Hong Kong
DAEL
Daiwa Europe, London
DH
Dao Heng, Hong Kong
DEBP
Den Danske Bank, Copenhagen
DO
Den Norske Bank, Oslo
DEUT
Deutsche Bank, Tokyo
DKBT
DKB Bank, Tokyo
AF
Dresdner Bank AG, Frankfurt
EPFS
Erik Penser FK, Stockholm
FOBS
Foreningsbanken, Stockholm
FJIT
Fuji Bank, Tokyo
GGBN
Garbin GuyButler/Garban
GARN
Garvin BENCHMARK COMPOSITE, New York
GEBB
General Bank, Brussels
GH
Generale Bank, Hong Kong
GFT
Global forex Trading, Michigan
GOSP
Goldman Sachs, Paris
GPXN
GOVPX Full Service, New York
GPIN
GOVPX Indicative Service, New York
HABL
Hambros Bank, London
HN
Hantec International Limited
BH
Harlow Butler London
HM
Harlow Meyer Savage, New York
HA
Harris Trust, Chicago
HH
Hong Kong and Shanghai, Hong Kong
HS
Hong Kong and Shanghai, Sydney
IBJT
IBJ Bank, Tokyo
ID
Indover Asia Limited, Hong Kong
IN
Intercap Investments, New York
IS
Indosuez Australia Limited, Sydney
ISML
ISMA, London
II
Italian International Bank, London
JPBS
JP Bank, Stockholm
JPML
JP Morgan, London
JPMP
JP Morgan et Cie
JBAA
Japan Bankers Association
JBBT
Japan, Bond Brokers, LTD.
KA
Kaes USA Inc., Miami
KZ
Katonalbank, Zurich
KH
Kwangtung Provincial Bank, Hong Kong
LB
La Bouchere Amsterdam
LH
Lee Fung Hong, Hong Kong
LEBL
Lehman Brothers, London
LY
Lloyds Bank NZA Limited, Sydney
LDFP
Louis-Dryfus fin.
MQ
Macquarie Bank Limited, Sydney
MP
Mees Pierson, Amsterdam
LP
Mellon Bank, Pittsburg
MR
Merita Bank, Helsinki
MIDS
Midlandbank, Stockholm
MIML
Midland Montagu, London
MTBT
Mitsubishi Trust Bank, Tokyo
ST
Mitsui Sumitomo, Tokyo
MO
Mocatta Metals, London
JMGF
Morgan Guaranty, Frankfurt
MG
Morgan Guaranty, New York
MOSP
Morgan Stanley
RL
NM Rothschilds, London
NA
National Australia Bank, Melbourne
NK
NatWest Markets Australia LTD. Sydney
NL
National Westminster Bank, London
NW
National Bank of New Zealand, Wellington
CF
Nomura Bank, AMS
NORS
Nordbanken, Stockholm
NRIT
Norin Bank, Tokyo
OJFS
Ohman J

r FK , Stockholm
HC
OHV, Amsterdam
OH
OKO Bank, Helsinki
PH
Po Sang Bank Ltd., Hong Kong
PK
Postipankki, Helsinki
RA
Rabobank, Amsterdam
RU
Rabobank, Ultrecht
RF
Rada Forex, New York
RC
Royal Bank of Canada, London
RT
Royal Bank of Canada, Toronto
RS
Republic Mase Westpac, Sydney
RH
Republic National Bank, Hong Kong
RN
Republic National Bank, New York
SWAT
Sanwa Bank, Tokyo
SCSP
Scope Simulation Provider
SEBS
SE Banken, Stockholm
SEBL
SE Bank, London, England
SCBT
Shinkin Central Bank, Tokyo
SSIT
Shinsei Bank, Tokyo
SHOT
Shochu Bank, Tokyo
VN
Skandinaviska, New York
VG
Skandinaviska, Singapore
SE
Societe Generale Austrialia Ltd Sydney
SG
Societe Generale, New York
SH
Standard Chartered Bank, Hong Kong
SW
State Bank of New South Wales, Sydney
STBT
Sumitomo Trust Bank, Tokyo
SF
Sun Hunk Kai Limited, Hong Kong
SVES
Svenska, Stockholm
SB
Svenska Hanelsbanken, New York
SVRS
Sveriges Riksbank, Stockholm
SWES
SwedBank, Stockholm
SN
Swiss Bank, New York
TF
Taipei Forex, Taipei
TKAT
Tokai Bank, Tokyo
TBBL
Tradition Bond Brokers, Ldn
TRNS
Transferator, Stockholm
TT
Trasy Gold Limited
TU
Trinkhaus, Dusseldorf
TG
Tullete & Tokyo, Singapore
TL
Tullete & Tokyo, London
TN
Tullete & Tokyo, New York
TM
Tullete & Tokyo, Manama
TS
Tullete & Tokyo, Sydney
UBST
UBS Bank, Tokyo
AY
Ulster Bank
UNIC
Unibors, Copenhagen
UH
Union Bank of Finland, Helsinki
UBSS
Union Bank of Switzerland
UG
Union Bank of Switzerland, Geneva
UC
Union Bank of Switzerland, New York
UW
Union Bank of Switzerland, Sydney
UZ
Union Bank of Switzerland, Zurich
SC
Warburg DR, Hong Kong
WZ
Warburg DR, Zurich
WP
Westpac Banking Corp, London
WY
Westpac Banking Corp, Sydney
WOGT
Wood Gundy, Canada
YKOT
Yokohama Bank, Tokyo
YTBT
Yasuda Trust Bank, Tokyo