ASN AS21704 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21704?

AS21704 is listed under New York City Board of Education.

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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AS21704 New York City Board of Education

ASN Lookup Tool

New York City Board of Education schools.nyc.gov

US 24 Routes

AS Data

AS21704

AS21704 – New York City Board of Education

AS Number	21704
AS Name	ASN-21704
Organization	New York City Board of Education (nycbe)
Country	US
Website	schools.nyc.gov
Number of IPv4 Routes	24
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	2024-06-06

ASN Intelligence API for production workflows

Use ASN data for AS21704 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
165.155.144.0/20	AS21704	New York City Board of Education	Department of Education	4096
165.155.56.0/24	AS21704	New York City Board of Education	Department of Education	256
165.155.36.0/22	AS21704	New York City Board of Education	Department of Education	1024
165.155.176.0/20	AS21704	New York City Board of Education	Department of Education	4096
165.155.208.0/23	AS21704	New York City Board of Education	Department of Education	512
165.155.232.0/22	AS21704	New York City Board of Education	Department of Education	1024
165.155.160.0/20	AS21704	New York City Board of Education	Department of Education	4096
165.155.52.0/22	AS21704	New York City Board of Education	Department of Education	1024
9.179.230.0/24	AS21704	New York City Board of Education	NYC DEPARTMENT OF EDUCATION	256
165.155.20.0/22	AS21704	New York City Board of Education	Department of Education	1024
165.155.40.0/24	AS21704	New York City Board of Education	Department of Education	256
165.155.128.0/20	AS21704	New York City Board of Education	Department of Education	4096
165.155.216.0/21	AS21704	New York City Board of Education	Department of Education	2048
165.155.48.0/20	AS21704	New York City Board of Education	Department of Education	4096
165.155.236.0/22	AS21704	New York City Board of Education	Department of Education	1024
165.155.48.0/22	AS21704	New York City Board of Education	Department of Education	1024
165.155.16.0/22	AS21704	New York City Board of Education	Department of Education	1024
165.155.32.0/22	AS21704	New York City Board of Education	Department of Education	1024
165.155.224.0/21	AS21704	New York City Board of Education	Department of Education	2048
165.155.0.0/16	AS21704	New York City Board of Education	Department of Education	65536
165.155.192.0/21	AS21704	New York City Board of Education	Department of Education	2048
165.155.32.0/20	AS21704	New York City Board of Education	Department of Education	4096
165.155.64.0/18	AS21704	New York City Board of Education	Department of Education	16384
165.155.212.0/23	AS21704	New York City Board of Education	Department of Education	512

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:       21704
ASName:         ASN-21704
ASHandle:       AS21704
RegDate:        2024-06-06
Updated:        2024-06-06
Ref:            https://rdap.arin.net/registry/autnum/21704


OrgName:        New York City Board of Education
OrgId:          NYCBE
Address:        65 Court Street Room 1000
City:           Brooklyn
StateProv:      NY
PostalCode:     11201
Country:        US
RegDate:        1998-05-26
Updated:        2025-07-24
Ref:            https://rdap.arin.net/registry/entity/NYCBE


OrgNOCHandle: NYCPS-ARIN
OrgNOCName:   NYCPS-DIIT
OrgNOCPhone:  +1-718-935-4244 
OrgNOCEmail:  ipeng@schools.nyc.gov
OrgNOCRef:    https://rdap.arin.net/registry/entity/NYCPS-ARIN

OrgTechHandle: NYCPS-ARIN
OrgTechName:   NYCPS-DIIT
OrgTechPhone:  +1-718-935-4244 
OrgTechEmail:  ipeng@schools.nyc.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/NYCPS-ARIN

OrgAbuseHandle: ABUSE9323-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-718-935-4244 
OrgAbuseEmail:  network-complaints@schools.nyc.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE9323-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" : "21704",
    "as_handle" : "AS21704",
    "as_name" : "ASN-21704",
    "tech_contacts" : [ "NYCPS-ARIN" ],
    "abuse_contacts" : [ "ABUSE9323-ARIN" ],
    "date_created" : "2024-06-06",
    "date_updated" : "2024-06-06",
    "source" : "https://rdap.arin.net/registry/autnum/21704"
  } ],
  "organization" : {
    "handle" : "NYCBE",
    "name" : "New York City Board of Education",
    "address" : [ "65 Court Street Room 1000", "Brooklyn", "NY", "11201", "US" ],
    "street" : "Court Street",
    "city" : "Brooklyn",
    "state" : "NY",
    "zip_code" : "11201",
    "country" : [ "US" ],
    "date_created" : "1998-05-26",
    "date_updated" : "2025-07-24",
    "source" : "https://rdap.arin.net/registry/entity/NYCBE",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "NYCPS-ARIN",
    "name" : "NYCPS-DIIT",
    "email" : [ "ipeng@schools.nyc.gov" ],
    "phone" : [ "+1-718-935-4244" ],
    "source" : "https://rdap.arin.net/registry/entity/NYCPS-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ABUSE9323-ARIN",
    "name" : "Abuse",
    "email" : [ "network-complaints@schools.nyc.gov" ],
    "phone" : [ "+1-718-935-4244" ],
    "source" : "https://rdap.arin.net/registry/entity/ABUSE9323-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS46887	Zayo Bandwidth	US

Upstreams

AS Number	Description	Country
AS46887	Zayo Bandwidth	US