ASN AS1657 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS1657?

AS1657 is listed under University of Louisville.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS1657 University of Louisville

ASN Lookup Tool

University of Louisville hermes.louisville.edu

US 15 Routes

AS Data

AS1657

AS1657 – University of Louisville

AS Number	1657
AS Name	LOUISVILLE
Organization	University of Louisville(univer-261-z)
Country	US
Website	hermes.louisville.edu
Number of IPv4 Routes	14
Number of IPv6 Routes	1
ASN type	EDUCATION
Registry	ARIN
Date Allocated	1992-03-04

ASN Intelligence API for production workflows

Use ASN data for AS1657 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
136.165.0.0/16	AS1657	University of Louisville	University of Louisville	65536
136.165.224.0/19	AS1657	University of Louisville	University of Louisville	8192
136.165.0.0/19	AS1657	University of Louisville	University of Louisville	8192
136.165.160.0/19	AS1657	University of Louisville	University of Louisville	8192
136.165.32.0/19	AS1657	University of Louisville	University of Louisville	8192
136.165.64.0/19	AS1657	University of Louisville	University of Louisville	8192
136.165.128.0/19	AS1657	University of Louisville	University of Louisville	8192
136.165.192.0/19	AS1657	University of Louisville	University of Louisville	8192
2610:1e0:1800::/48	AS1657	University of Louisville	University of Louisville	~1×10²⁴
136.165.96.0/19	AS1657	University of Louisville	University of Louisville	8192

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:       1657
ASName:         LOUISVILLE
ASHandle:       AS1657
RegDate:        1992-03-04
Updated:        2021-10-28    
Ref:            https://rdap.arin.net/registry/autnum/1657


OrgName:        University of Louisville
OrgId:          UNIVER-261-Z
Address:        Information Technology: Communications Services
Address:        University of Louisville
City:           Louisville
StateProv:      KY
PostalCode:     40292
Country:        US
RegDate:        2021-03-09
Updated:        2021-03-09
Ref:            https://rdap.arin.net/registry/entity/UNIVER-261-Z


OrgTechHandle: UOFLH-ARIN
OrgTechName:   UofL Hostmaster
OrgTechPhone:  +1-502-852-1776 
OrgTechEmail:  hostmaster@hermes.louisville.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/UOFLH-ARIN

OrgNOCHandle: UOFLH-ARIN
OrgNOCName:   UofL Hostmaster
OrgNOCPhone:  +1-502-852-1776 
OrgNOCEmail:  hostmaster@hermes.louisville.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/UOFLH-ARIN

OrgAbuseHandle: UOFLH-ARIN
OrgAbuseName:   UofL Hostmaster
OrgAbusePhone:  +1-502-852-1776 
OrgAbuseEmail:  hostmaster@hermes.louisville.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/UOFLH-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
AS18540	Recovery Point Systems Inc.	US
AS3714	Kentucky Educational Computing Network	US

Upstreams

AS Number	Description	Country
AS18540	Recovery Point Systems Inc.	US
AS3714	Kentucky Educational Computing Network	US