ASN AS21559 is an Autonomous System Number used to identify a network for BGP internet routing.

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.

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AS21559 OSNET | IPGeolocation.io

ASN Lookup Tool

OSNET osnetpr.com

PR 43 Routes

AS Data

AS21559

AS21559 – OSNET

AS Number	21559
AS Name	OSNET
Organization	OSNET(osnet)
Country	PR
Website	osnetpr.com
Number of IPv4 Routes	42
Number of IPv6 Routes	1
ASN type	ISP
Registry	ARIN
Date Allocated	2010-07-07

ASN Intelligence API for production workflows

Use ASN data for AS21559 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2604:1cc0::/32	AS21559	OSNET	OSNET	~79×10²⁷
69.24.197.0/24	AS21559	OSNET	OSNET	256
199.116.62.0/24	AS21559	OSNET	FiberX	256
167.94.224.0/23	AS21559	OSNET	Skynet Wireless	512
173.239.228.0/24	AS21559	OSNET	SMARTNET LLC	256
38.87.232.0/21	AS21559	OSNET	OSNet Wireless	2048
154.64.216.0/21	AS21559	OSNET	Cogent Communications, LLC	2048
192.254.96.0/24	AS21559	OSNET	OSNET	256
200.5.23.0/24	AS21559	OSNET	OSNET	256
74.119.24.0/24	AS21559	OSNET	OSNET	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:       21559
ASName:         OSNET
ASHandle:       AS21559
RegDate:        2010-07-07
Updated:        2013-06-28    
Ref:            https://rdap.arin.net/registry/autnum/21559


OrgName:        OSNET
OrgId:          OSNET
Address:        PO BOX 819
City:           Humacao
StateProv:      PR
PostalCode:     00792-0819
Country:        PR
RegDate:        2010-05-25
Updated:        2025-09-18
Ref:            https://rdap.arin.net/registry/entity/OSNET


OrgAbuseHandle: RIVER7-ARIN
OrgAbuseName:   Rivera, Ivan 
OrgAbusePhone:  +1-787-655-1919 
OrgAbuseEmail:  abuse@osnetpr.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/RIVER7-ARIN

OrgTechHandle: TREJO37-ARIN
OrgTechName:   Trejo, Greider  
OrgTechPhone:  +1-787-655-1919 
OrgTechEmail:  gtrejo@osnetpr.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TREJO37-ARIN

OrgNOCHandle: RIVER5-ARIN
OrgNOCName:   Rivera, Ivan 
OrgNOCPhone:  +1-787-655-1919 
OrgNOCEmail:  noc@osnetpr.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/RIVER5-ARIN

OrgNOCHandle: NOC33740-ARIN
OrgNOCName:   NOC
OrgNOCPhone:  +1-787-710-0000 
OrgNOCEmail:  noc@osnetpr.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC33740-ARIN

RAbuseHandle: RIVER7-ARIN
RAbuseName:   Rivera, Ivan 
RAbusePhone:  +1-787-655-1919 
RAbuseEmail:  abuse@osnetpr.com
RAbuseRef:    https://rdap.arin.net/registry/entity/RIVER7-ARIN

RNOCHandle: RIVER6-ARIN
RNOCName:   Rivera, Ivan 
RNOCPhone:  +1-787-655-1919 
RNOCEmail:  irivera@osnetpr.com
RNOCRef:    https://rdap.arin.net/registry/entity/RIVER6-ARIN

RTechHandle: RIVER5-ARIN
RTechName:   Rivera, Ivan 
RTechPhone:  +1-787-655-1919 
RTechEmail:  noc@osnetpr.com
RTechRef:    https://rdap.arin.net/registry/entity/RIVER5-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
AS62713	PubMatic, Inc.	US
AS13631	CITADEL ENTERPRISE AMERICAS LLC	US
AS21351	Canal + Telecom SAS	GP
AS40850	UPIX NETWORKS INTERNATIONAL LLC	US
AS397359	InfinityNet Wireless LLC	PR
AS29606	Borwood Ltd	GB
AS399647	Rumble USA Inc.	US
AS393225	ARIN Operations	US
AS3303	Swisscom Schweiz AG	CH
AS215724	Edgevana, Inc.	US

Upstreams

AS Number	Description	Country
AS64126	DOMINICAN TELECOM PRIME, DTP, S.R.L.	DO
AS264409	GRUPO YAX	BR
AS58453	China Mobile International Limited	HK
AS6762	TELECOM ITALIA SPARKLE S.p.A.	IT
AS262761	Sinal Br Telecom Ltda	BR
AS12956	TELXIUS Cable	ES
AS7195	EDGEUNO S.A.S	CO
AS52320	GlobeNet Cabos Submarinos Colombia, S.A.S.	CO
AS263237	PowerHost Telecom SPA	CL
AS6939	Hurricane Electric LLC	US

Downstreams

AS Number	Description	Country
AS22109	Universal Group, Inc.	US
AS46868	VPNET INC	PR
AS36435	M.S. Wifi Zone Inc.	PR
AS10524	GOYA DE PUERTO RICO	PR
AS399444	DWireless & More Inc.	PR
AS397470	Antoniol Electronic	PR
AS40414	Optivon, Inc.	PR
AS46941	Xairnet	PR
AS63393	BOOM NET	PR
AS30294	Familynet Inc.	PR