What is ASN AS399501?

ASN AS399501 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS399501?

AS399501 is listed under City Of Lancaster.

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.

AS399501 City Of Lancaster | IPGeolocation.io

ASN Lookup Tool

City Of Lancaster cityoflancasterpa.com

US 1 Routes

AS Data

AS399501

AS399501 – City Of Lancaster

AS Number	399501
AS Name	COLPENN
Organization	City Of Lancaster(cl-2209)
Country	US
Website	cityoflancasterpa.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	2021-03-29

ASN Intelligence API for production workflows

Use ASN data for AS399501 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
72.20.212.0/24	AS399501	City Of Lancaster	City Of Lancaster	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:       399501
ASName:         COLPENN
ASHandle:       AS399501
RegDate:        2021-03-29
Updated:        2021-03-29    
Ref:            https://rdap.arin.net/registry/autnum/399501


OrgName:        City Of Lancaster
OrgId:          CL-2209
Address:        120 North Duke Street
City:           Lancaster
StateProv:      PA
PostalCode:     17602
Country:        US
RegDate:        2021-03-10
Updated:        2026-02-20
Comment:        www.cityoflancasterpa.com
Ref:            https://rdap.arin.net/registry/entity/CL-2209


OrgNOCHandle: HOPKI277-ARIN
OrgNOCName:   Hopkins, Patrick 
OrgNOCPhone:  +1-717-291-3556 
OrgNOCEmail:  lanccityit@cityoflancasterpa.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/HOPKI277-ARIN

OrgTechHandle: ASIAF-ARIN
OrgTechName:   Asia, Favyan 
OrgTechPhone:  +1-717-455-3655 
OrgTechEmail:  arin1@hempfieldtech.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ASIAF-ARIN

OrgTechHandle: SCHAE288-ARIN
OrgTechName:   Schaeffer, Adam 
OrgTechPhone:  +1-717-604-2100 
OrgTechEmail:  adam@fullspansolutions.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SCHAE288-ARIN

OrgRoutingHandle: HOPKI277-ARIN
OrgRoutingName:   Hopkins, Patrick 
OrgRoutingPhone:  +1-717-291-3556 
OrgRoutingEmail:  lanccityit@cityoflancasterpa.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/HOPKI277-ARIN

OrgTechHandle: HOPKI277-ARIN
OrgTechName:   Hopkins, Patrick 
OrgTechPhone:  +1-717-291-3556 
OrgTechEmail:  lanccityit@cityoflancasterpa.com
OrgTechRef:    https://rdap.arin.net/registry/entity/HOPKI277-ARIN

OrgAbuseHandle: HOPKI277-ARIN
OrgAbuseName:   Hopkins, Patrick 
OrgAbusePhone:  +1-717-291-3556 
OrgAbuseEmail:  lanccityit@cityoflancasterpa.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/HOPKI277-ARIN

OrgDNSHandle: HOPKI277-ARIN
OrgDNSName:   Hopkins, Patrick 
OrgDNSPhone:  +1-717-291-3556 
OrgDNSEmail:  lanccityit@cityoflancasterpa.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/HOPKI277-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
AS6461	Zayo Bandwidth	US

Upstreams

AS Number	Description	Country
AS6461	Zayo Bandwidth	US