---
title: "SecurityIDSource(formerly named: IDSource prior to FIX 4.3) <22> field – FIX 4.3 – FIX Dictionary – Onix Solutions"
description: "SecurityIDSource(formerly named: IDSource prior to FIX 4.3) <22> field – FIX 4.3 – FIX Dictionary – Onix Solutions"
---

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# SecurityIDSource(formerly named: IDSource prior to FIX 4.3) <22> field – FIX 4.3 – FIX Dictionary

| Messages by MsgType \| Messages by Name \| Fields by Tag \| Fields by Name \| FIX 4.3 \| Home FIX 4.3 : SecurityIDSource(formerly named: IDSource prior to FIX 4.3) <22> field Type: String Used In Description Identifies class or source of the SecurityID <48> value. Required if SecurityID <48> is specified. Valid values: 1 = CUSIP 2 = SEDOL 3 = QUIK 4 = ISIN number 5 = RIC code 6 = ISO Currency <15> Code 7 = ISO Country <421> Code 8 = Exchange Symbol 9 = Consolidated Tape Association (CTA) Symbol (SIAC CTS/CQS line format) A = Bloomberg Symbol B = Wertpapier C = Dutch D = Valoren E = Sicovam F = Belgian G = "Common" (Clearstream and Euroclear) 100+ are reserved for private security identifications Used In <Instrument> |
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