ASN Lookup Tool

Ann & Robert H. Lurie Children's Hospital of Chicago luriechildrens.org US US 9 Routes

AS Data

AS31770

AS31770 – Ann & Robert H. Lurie Children's Hospital of Chicago

AS Number 31770
AS Name CMMC-I2
Organization Ann & Robert H. Lurie Children's Hospital of Chicago(cmmc)
Country US
Website luriechildrens.org
Number of IPv4 Routes 9
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 2003-12-17

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Use ASN data for AS31770 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
199.125.31.0/24 256
199.125.16.0/24 256
199.125.30.0/24 256
192.206.216.0/24 256
192.206.212.0/24 256
192.206.211.0/24 256
199.125.20.0/24 256
199.125.18.0/24 256
199.125.17.0/24 256

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       31770
ASName:         CMMC-I2
ASHandle:       AS31770
RegDate:        2003-12-17
Updated:        2003-12-17    
Ref:            https://rdap.arin.net/registry/autnum/31770


OrgName:        Ann & Robert H. Lurie Children's Hospital of Chicago
OrgId:          CMMC
Address:        225 East Chicago Avenue
City:           Chicago
StateProv:      IL
PostalCode:     60611
Country:        US
RegDate:        1992-09-17
Updated:        2014-05-13
Ref:            https://rdap.arin.net/registry/entity/CMMC


OrgTechHandle: POC1-ARIN
OrgTechName:   POC
OrgTechPhone:  +1-312-227-4000 
OrgTechEmail:  poc@luriechildrens.org
OrgTechRef:    https://rdap.arin.net/registry/entity/POC1-ARIN

OrgAbuseHandle: POC1-ARIN
OrgAbuseName:   POC
OrgAbusePhone:  +1-312-227-4000 
OrgAbuseEmail:  poc@luriechildrens.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/POC1-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number Description Country
AS22335 Metropolitan Research and Education Network US
AS13499 NEW CCH, LLC US
AS6461 Zayo Bandwidth US

Upstreams

AS Number Description Country
AS22335 Metropolitan Research and Education Network US
AS13499 NEW CCH, LLC US
AS6461 Zayo Bandwidth US

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Frequently Asked Questions

ASN AS31770 is an Autonomous System Number used to identify a network for BGP internet routing.
AS31770 is listed under Ann & Robert H. Lurie Children's Hospital of Chicago.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.