ASN AS25831 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS25831?

AS25831 is listed under Prefix Network LLC.

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?

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AS25831 Prefix Network LLC | IPGeolocation.io

ASN Lookup Tool

Prefix Network LLC prefix.uy

US 6 Routes

AS Data

AS25831

AS25831 – Prefix Network LLC

AS Number	25831
AS Name	PREFIX NETWORK
Organization	Prefix Network LLC (pnl-87)
Country	US
Website	prefix.uy
Number of IPv4 Routes	6
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	2025-12-09

ASN Intelligence API for production workflows

Use ASN data for AS25831 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.26.72.0/22	AS25831	Prefix Network LLC	Internet Utilities NA LLC	1024
108.186.124.0/24	AS25831	Prefix Network LLC	Internet Utilities NA LLC	256
192.26.68.0/22	AS25831	Prefix Network LLC	Internet Utilities NA LLC	1024
9.237.32.0/20	AS25831	Prefix Network LLC	Prefix Network LLC	4096
188.221.124.0/22	AS25831	Prefix Network LLC	Sky UK Limited	1024
188.221.200.0/22	AS25831	Prefix Network LLC	Sky UK Limited	1024

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:       25831
ASName:         PREFIX NETWORK
ASHandle:       AS25831
RegDate:        2025-12-09
Updated:        2025-12-09
Ref:            https://rdap.arin.net/registry/autnum/25831


OrgName:        Prefix Network LLC
OrgId:          PNL-87
Address:        9706 Atlee Commons Dr
City:           Ashland
StateProv:      VA
PostalCode:     23005
Country:        US
RegDate:        2024-12-02
Updated:        2026-09-15
Ref:            https://rdap.arin.net/registry/entity/PNL-87


OrgAbuseHandle: BRYAN635-ARIN
OrgAbuseName:   Bryant, Jim 
OrgAbusePhone:  +1-703-877-8177 
OrgAbuseEmail:  jim@prefix.uy
OrgAbuseRef:    https://rdap.arin.net/registry/entity/BRYAN635-ARIN

OrgNOCHandle: BRYAN635-ARIN
OrgNOCName:   Bryant, Jim 
OrgNOCPhone:  +1-703-877-8177 
OrgNOCEmail:  jim@prefix.uy
OrgNOCRef:    https://rdap.arin.net/registry/entity/BRYAN635-ARIN

OrgTechHandle: BRYAN635-ARIN
OrgTechName:   Bryant, Jim 
OrgTechPhone:  +1-703-877-8177 
OrgTechEmail:  jim@prefix.uy
OrgTechRef:    https://rdap.arin.net/registry/entity/BRYAN635-ARIN

OrgDNSHandle: BRYAN635-ARIN
OrgDNSName:   Bryant, Jim 
OrgDNSPhone:  +1-703-877-8177 
OrgDNSEmail:  jim@prefix.uy
OrgDNSRef:    https://rdap.arin.net/registry/entity/BRYAN635-ARIN

OrgRoutingHandle: BRYAN635-ARIN
OrgRoutingName:   Bryant, Jim 
OrgRoutingPhone:  +1-703-877-8177 
OrgRoutingEmail:  jim@prefix.uy
OrgRoutingRef:    https://rdap.arin.net/registry/entity/BRYAN635-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" : "25831",
    "as_handle" : "AS25831",
    "as_name" : "PREFIX NETWORK",
    "admin_contacts" : [ "BRYAN635-ARIN" ],
    "tech_contacts" : [ "BRYAN635-ARIN", "BRYAN635-ARIN" ],
    "abuse_contacts" : [ "BRYAN635-ARIN" ],
    "date_created" : "2025-12-09",
    "date_updated" : "2025-12-09",
    "source" : "https://rdap.arin.net/registry/autnum/25831"
  } ],
  "organization" : {
    "handle" : "PNL-87",
    "name" : "Prefix Network LLC",
    "address" : [ "9706 Atlee Commons Dr", "Ashland", "VA", "23005", "US" ],
    "street" : "Atlee Commons Dr",
    "city" : "Ashland",
    "state" : "VA",
    "zip_code" : "23005",
    "country" : [ "US" ],
    "date_created" : "2024-12-02",
    "date_updated" : "2026-09-15",
    "source" : "https://rdap.arin.net/registry/entity/PNL-87",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "BRYAN635-ARIN",
    "name" : "Bryant, Jim",
    "email" : [ "jim@prefix.uy" ],
    "phone" : [ "+1-703-877-8177" ],
    "source" : "https://rdap.arin.net/registry/entity/BRYAN635-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "BRYAN635-ARIN",
    "name" : "Bryant, Jim",
    "email" : [ "jim@prefix.uy" ],
    "phone" : [ "+1-703-877-8177" ],
    "source" : "https://rdap.arin.net/registry/entity/BRYAN635-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "BRYAN635-ARIN",
    "name" : "Bryant, Jim",
    "email" : [ "jim@prefix.uy" ],
    "phone" : [ "+1-703-877-8177" ],
    "source" : "https://rdap.arin.net/registry/entity/BRYAN635-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS396356	Latitude.sh	US
AS214937	Eleven Holdings Limited	HK

Upstreams

AS Number	Description	Country
AS396356	Latitude.sh	US
AS214937	Eleven Holdings Limited	HK