ASN AS23255 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS23255?

AS23255 is listed under Pacificorp.

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.

AS23255 Pacificorp | IPGeolocation.io

ASN Lookup Tool

Pacificorp midamerican.com

US 15 Routes

AS Data

AS23255

AS23255 – Pacificorp

AS Number	23255
AS Name	PACIFICORP
Organization	Pacificorp (pacifi-109)
Country	US
Website	midamerican.com
Number of IPv4 Routes	15
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2002-02-15

ASN Intelligence API for production workflows

Use ASN data for AS23255 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
131.219.0.0/24	AS23255	Pacificorp	PacifiCorp	256
131.219.5.0/24	AS23255	Pacificorp	PacifiCorp	256
131.219.0.0/20	AS23255	Pacificorp	PacifiCorp	4096
131.219.7.0/24	AS23255	Pacificorp	PacifiCorp	256
131.219.12.0/24	AS23255	Pacificorp	PacifiCorp	256
131.219.2.0/24	AS23255	Pacificorp	PacifiCorp	256
131.219.3.0/24	AS23255	Pacificorp	PacifiCorp	256
131.219.9.0/24	AS23255	Pacificorp	PacifiCorp	256
131.219.0.0/22	AS23255	Pacificorp	PacifiCorp	1024
131.219.6.0/24	AS23255	Pacificorp	PacifiCorp	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:       23255
ASName:         PACIFICORP
ASHandle:       AS23255
RegDate:        2002-02-15
Updated:        2012-02-24
Ref:            https://rdap.arin.net/registry/autnum/23255


OrgName:        Pacificorp
OrgId:          PACIFI-109
Address:        825 NE Multnomah Street, Ste 1570
City:           Portland
StateProv:      OR
PostalCode:     97232
Country:        US
RegDate:        2001-05-30
Updated:        2025-12-18
Ref:            https://rdap.arin.net/registry/entity/PACIFI-109


OrgTechHandle: ZM58-ARIN
OrgTechName:   MidAmerican Energy Holdings Company
OrgTechPhone:  +1-515-252-6663 
OrgTechEmail:  networkedgefw@brkenergy.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ZM58-ARIN

OrgAbuseHandle: ZM58-ARIN
OrgAbuseName:   MidAmerican Energy Holdings Company
OrgAbusePhone:  +1-515-252-6663 
OrgAbuseEmail:  networkedgefw@brkenergy.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ZM58-ARIN

OrgTechHandle: MARKA54-ARIN
OrgTechName:   Gutowski, Mark A
OrgTechPhone:  +1-503-720-8823 
OrgTechEmail:  mark.gutowski@midamerican.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MARKA54-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

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "23255",
    "as_handle" : "AS23255",
    "as_name" : "PACIFICORP",
    "tech_contacts" : [ "ZM58-ARIN", "MARKA54-ARIN" ],
    "abuse_contacts" : [ "ZM58-ARIN" ],
    "date_created" : "2002-02-15",
    "date_updated" : "2012-02-24",
    "source" : "https://rdap.arin.net/registry/autnum/23255"
  } ],
  "organization" : {
    "handle" : "PACIFI-109",
    "name" : "Pacificorp",
    "address" : [ "825 NE Multnomah Street, Ste 1570", "Portland", "OR", "97232", "US" ],
    "street" : "Ne Multnomah Street",
    "city" : "Portland",
    "state" : "OR",
    "zip_code" : "97232",
    "country" : [ "US" ],
    "date_created" : "2001-05-30",
    "date_updated" : "2025-12-18",
    "source" : "https://rdap.arin.net/registry/entity/PACIFI-109",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "ZM58-ARIN",
    "name" : "MidAmerican Energy Holdings Company",
    "email" : [ "networkedgefw@brkenergy.com" ],
    "phone" : [ "+1-515-252-6663" ],
    "source" : "https://rdap.arin.net/registry/entity/ZM58-ARIN"
  }, {
    "handle" : "MARKA54-ARIN",
    "name" : "Gutowski, Mark A",
    "email" : [ "mark.gutowski@midamerican.com" ],
    "phone" : [ "+1-503-720-8823" ],
    "source" : "https://rdap.arin.net/registry/entity/MARKA54-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ZM58-ARIN",
    "name" : "MidAmerican Energy Holdings Company",
    "email" : [ "networkedgefw@brkenergy.com" ],
    "phone" : [ "+1-515-252-6663" ],
    "source" : "https://rdap.arin.net/registry/entity/ZM58-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS13335	Cloudflare, Inc.	US
AS209	CenturyLink Communications, LLC	US
AS6461	Zayo Bandwidth	US

Upstreams

AS Number	Description	Country
AS13335	Cloudflare, Inc.	US
AS209	CenturyLink Communications, LLC	US
AS6461	Zayo Bandwidth	US