<SEC-DOCUMENT>0001047469-18-007078-index.html : 20181106
<SEC-HEADER>0001047469-18-007078.hdr.sgml : 20181106
<ACCEPTANCE-DATETIME>20181106144706
ACCESSION NUMBER:		0001047469-18-007078
CONFORMED SUBMISSION TYPE:	424B2
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20181106
DATE AS OF CHANGE:		20181106

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Ameren Illinois Co
		CENTRAL INDEX KEY:			0000018654
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
		IRS NUMBER:				370211380
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B2
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-222108-01
		FILM NUMBER:		181162610

	BUSINESS ADDRESS:	
		STREET 1:		6 EXECUTIVE DRIVE
		CITY:			COLLINSVILLE
		STATE:			IL
		ZIP:			62234
		BUSINESS PHONE:		618-343-8150

	MAIL ADDRESS:	
		STREET 1:		6 EXECUTIVE DRIVE
		CITY:			COLLINSVILLE
		STATE:			IL
		ZIP:			62234

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CENTRAL ILLINOIS PUBLIC SERVICE CO
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B2
<SEQUENCE>1
<FILENAME>a2237066z424b2.htm
<DESCRIPTION>424B2
<TEXT>
Document 1 - file: a2237066z424b2.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>g881082.jpg <DESCRIPTION>G881082.JPG <TEXT> Document 2 - file: g881082.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>g861945.jpg <DESCRIPTION>G861945.JPG <TEXT> Document 3 - file: g861945.jpg
</DOCUMENT> </SEC-DOCUMENT>