ASN AS11580 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS11580?

AS11580 is listed under Island Networks Ltd.

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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AS11580 Island Networks Ltd | IPGeolocation.io

ASN Lookup Tool

Island Networks Ltd islandnetjm.com

JM 8 Routes

AS Data

AS11580

AS11580 – Island Networks Ltd

AS Number	11580
AS Name	ISLAND-NETWORKS-LTD
Organization	Island Networks Ltd (inl-15)
Country	JM
Website	islandnetjm.com
Number of IPv4 Routes	8
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	2005-09-21

ASN Intelligence API for production workflows

Use ASN data for AS11580 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
74.116.56.0/24	AS11580	Island Networks Ltd	Island Networks Ltd	256
74.116.57.0/24	AS11580	Island Networks Ltd	Island Networks Ltd	256
162.254.243.0/24	AS11580	Island Networks Ltd	Wave	256
64.112.16.0/22	AS11580	Island Networks Ltd	Hometime	1024
72.252.24.0/24	AS11580	Island Networks Ltd	Island Networks Ltd	256
74.116.58.0/24	AS11580	Island Networks Ltd	Island Networks Ltd	256
74.116.59.0/24	AS11580	Island Networks Ltd	Island Networks Ltd	256
205.164.204.0/22	AS11580	Island Networks Ltd	Island Networks Ltd	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:       11580
ASName:         ISLAND-NETWORKS-LTD
ASHandle:       AS11580
RegDate:        2005-09-21
Updated:        2025-10-30
Comment:        Island Networks Ltd , Caribbeans First MPLS Network
Ref:            https://rdap.arin.net/registry/autnum/11580


OrgName:        Island Networks Ltd
OrgId:          INL-15
Address:        24 
Address:        Parkington Plaza Kng 10
City:           Kingston 10
StateProv:      JM
PostalCode:     10
Country:        JM
RegDate:        2005-08-22
Updated:        2023-12-21
Ref:            https://rdap.arin.net/registry/entity/INL-15


OrgTechHandle: DAVIS2482-ARIN
OrgTechName:   Davis, Andrew 
OrgTechPhone:  +1-876-606-0000 
OrgTechEmail:  adavis@islandnetjm.com
OrgTechRef:    https://rdap.arin.net/registry/entity/DAVIS2482-ARIN

OrgAbuseHandle: DAVIS2482-ARIN
OrgAbuseName:   Davis, Andrew 
OrgAbusePhone:  +1-876-606-0000 
OrgAbuseEmail:  adavis@islandnetjm.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DAVIS2482-ARIN

OrgRoutingHandle: DAVIS2482-ARIN
OrgRoutingName:   Davis, Andrew 
OrgRoutingPhone:  +1-876-606-0000 
OrgRoutingEmail:  adavis@islandnetjm.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/DAVIS2482-ARIN

OrgNOCHandle: DAVIS2482-ARIN
OrgNOCName:   Davis, Andrew 
OrgNOCPhone:  +1-876-606-0000 
OrgNOCEmail:  adavis@islandnetjm.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/DAVIS2482-ARIN

OrgDNSHandle: DAVIS2482-ARIN
OrgDNSName:   Davis, Andrew 
OrgDNSPhone:  +1-876-606-0000 
OrgDNSEmail:  adavis@islandnetjm.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/DAVIS2482-ARIN

RAbuseHandle: DAVIS2482-ARIN
RAbuseName:   Davis, Andrew 
RAbusePhone:  +1-876-606-0000 
RAbuseEmail:  adavis@islandnetjm.com
RAbuseRef:    https://rdap.arin.net/registry/entity/DAVIS2482-ARIN

RNOCHandle: DAVIS2482-ARIN
RNOCName:   Davis, Andrew 
RNOCPhone:  +1-876-606-0000 
RNOCEmail:  adavis@islandnetjm.com
RNOCRef:    https://rdap.arin.net/registry/entity/DAVIS2482-ARIN

RTechHandle: DAVIS2482-ARIN
RTechName:   Davis, Andrew 
RTechPhone:  +1-876-606-0000 
RTechEmail:  adavis@islandnetjm.com
RTechRef:    https://rdap.arin.net/registry/entity/DAVIS2482-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" : "11580",
    "as_handle" : "AS11580",
    "as_name" : "ISLAND-NETWORKS-LTD",
    "admin_contacts" : [ "DAVIS2482-ARIN" ],
    "tech_contacts" : [ "DAVIS2482-ARIN", "DAVIS2482-ARIN", "DAVIS2482-ARIN" ],
    "abuse_contacts" : [ "DAVIS2482-ARIN", "DAVIS2482-ARIN" ],
    "date_created" : "2005-09-21",
    "date_updated" : "2025-10-30",
    "source" : "https://rdap.arin.net/registry/autnum/11580"
  } ],
  "organization" : {
    "handle" : "INL-15",
    "name" : "Island Networks Ltd",
    "address" : [ "24", "Parkington Plaza Kng 10", "Kingston 10", "JM", "10", "JM" ],
    "street" : "Parkington Plaza Kng",
    "city" : "Kingston 10",
    "zip_code" : "10",
    "country" : [ "JM" ],
    "date_created" : "2005-08-22",
    "date_updated" : "2023-12-21",
    "source" : "https://rdap.arin.net/registry/entity/INL-15",
    "addressCountry" : "JM"
  },
  "administrative_contacts" : [ {
    "handle" : "DAVIS2482-ARIN",
    "name" : "Davis, Andrew",
    "email" : [ "adavis@islandnetjm.com" ],
    "phone" : [ "+1-876-606-0000" ],
    "source" : "https://rdap.arin.net/registry/entity/DAVIS2482-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "DAVIS2482-ARIN",
    "name" : "Davis, Andrew",
    "email" : [ "adavis@islandnetjm.com" ],
    "phone" : [ "+1-876-606-0000" ],
    "source" : "https://rdap.arin.net/registry/entity/DAVIS2482-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "DAVIS2482-ARIN",
    "name" : "Davis, Andrew",
    "email" : [ "adavis@islandnetjm.com" ],
    "phone" : [ "+1-876-606-0000" ],
    "source" : "https://rdap.arin.net/registry/entity/DAVIS2482-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS30689	FLOW	JM
AS23520	Columbus Networks USA, Inc.	US

Upstreams

AS Number	Description	Country
AS23520	Columbus Networks USA, Inc.	US