What is ASN AS154571?

ASN AS154571 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS154571?

AS154571 is listed under ZENFIBER BROADBAND SERVICES PRIVATE LIMITED.

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.

AS154571 ZENFIBER BROADBAND SERVICES PRIVATE LIMITED

ASN Lookup Tool

ZENFIBER BROADBAND SERVICES PRIVATE LIMITED zenfiber.in

IN 8 Routes

AS Data

AS154571

AS154571 – ZENFIBER BROADBAND SERVICES PRIVATE LIMITED

AS Number	154571
AS Name	IRINN-ZENFIBER-AS-IN
Organization	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED
Country	IN
Website	zenfiber.in
Number of IPv4 Routes	3
Number of IPv6 Routes	5
ASN type	ISP
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS154571 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
163.128.124.0/24	AS154571	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	256
163.128.125.0/24	AS154571	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	256
2402:5320:8000::/34	AS154571	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	~20×10²⁷
2402:5320::/32	AS154571	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	~79×10²⁷
163.128.124.0/23	AS154571	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	512
2402:5320::/34	AS154571	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	~20×10²⁷
2402:5320:c000::/34	AS154571	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	~20×10²⁷
2402:5320:4000::/34	AS154571	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	ZENFIBER BROADBAND SERVICES PRIVATE LIMITED	~20×10²⁷

Raw Whois Response

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS153914 - AS154937'

as-block:       AS153914 - AS154937
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2025-04-01T05:54:59Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC

% Information related to 'AS154571'

% Abuse contact for 'AS154571' is 'abuse@zenfiber.in'

aut-num:        AS154571
as-name:        IRINN-ZENFIBER-AS-IN
descr:          ZENFIBER BROADBAND SERVICES PRIVATE LIMITED
country:        IN
admin-c:        SB1398-AP
tech-c:         TD547-AP
mnt-routes:     MAINT-IN-ZENFIBER
mnt-by:         MAINT-IN-IRINN
mnt-irt:        IRT-ZENFIBER-IN
last-modified:  2026-03-27T08:54:10Z
source:         APNIC

irt:            IRT-ZENFIBER-IN
address:        3, SASADHAR TARAFDAR ROAD Upasham Clinic, SUKCHAR, Panihati,Kolkata,West Bengal-700115
e-mail:         ipadmin@zenfier.in
abuse-mailbox:  abuse@zenfiber.in
admin-c:        SB1398-AP
tech-c:         TD547-AP
auth:           # Filtered
mnt-by:         MAINT-IN-ZENFIBER
last-modified:  2026-04-17T06:08:37Z
source:         APNIC

role:           TECHNICAL DIRECTOR
address:        3, SASADHAR TARAFDAR ROAD Upasham Clinic, SUKCHAR, Panihati,Kolkata,West Bengal-700115
country:        IN
phone:          +91 8981978002
e-mail:         ipadmin@zenfier.in
admin-c:        SB1398-AP
tech-c:         SB1398-AP
nic-hdl:        TD547-AP
mnt-by:         MAINT-IN-ZENFIBER
last-modified:  2026-03-26T11:32:21Z
source:         APNIC

person:         SUMANTRA BHATTACHARYA
address:        3, SASADHAR TARAFDAR ROAD Upasham Clinic, SUKCHAR, Panihati,Kolkata,West Bengal-700115
country:        IN
phone:          +91 8981978002
e-mail:         sumantra@zenfiber.in
nic-hdl:        SB1398-AP
mnt-by:         MAINT-IN-IRINN
last-modified:  2026-03-26T11:26:06Z
source:         APNIC

% Information related to 'AS153914 - AS154937'

as-block:       AS153914 - AS154937
descr:          APNIC ASN block
admin-c:        IA55-AP
tech-c:         IH123-AP
mnt-by:         MNT-APJII-ID
mnt-lower:      MNT-APJII-ID
last-modified:  2026-02-16T11:40:59Z
source:         IDNIC

role:           ID-NIC ADMINISTRATORS
address:        Indonesian Network Information Center
address:        ID-NIC
address:        Cyber Building 11th Floor
address:        Jakarta 12710
country:        ID
phone:          +62-21-52960634
fax-no:         +62-21-52960635
e-mail:         hostmaster@idnic.net
admin-c:        IH288-AP
tech-c:         IH288-AP
nic-hdl:        IA55-AP
notify:         hostmaster@idnic.net
mnt-by:         MNT-APJII-ID
last-modified:  2026-02-25T04:06:45Z
source:         IDNIC

role:           ID-NIC HOSTMASTERS
address:        Indonesian Network Information Center
address:        ID-NIC
address:        Cyber Building 11th Floor
address:        Jakarta 12710
country:        ID
phone:          +62-21-52960634
fax-no:         +62-21-52960635
e-mail:         hostmaster@idnic.net
remarks:        spam and abuse report : abuse@apjii.or.id
remarks:        technical and routing : support@apjii.or.id
remarks:        administrative request : admin@apjii.or.id
remarks:        IDNIC hostmasters role object
admin-c:        IH1-AP
tech-c:         IH1-AP
nic-hdl:        IH123-AP
notify:         hostmaster@idnic.net
mnt-by:         MNT-APJII-ID
last-modified:  2024-07-10T05:48:59Z
source:         IDNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-JP1)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS153914 - AS154937",
    "description" : [ "APNIC ASN block" ],
    "admin_contacts" : [ "HM20-AP" ],
    "tech_contacts" : [ "HM20-AP" ],
    "remarks" : [ "These AS numbers are further assigned by APNIC", "to APNIC members and end-users in the APNIC region" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "APNIC-HM" ],
    "date_updated" : "2025-04-01",
    "source" : "APNIC"
  }, {
    "as_block" : "AS153914 - AS154937",
    "description" : [ "APNIC ASN block" ],
    "admin_contacts" : [ "IA55-AP" ],
    "tech_contacts" : [ "IH123-AP" ],
    "mnt_by" : [ "MNT-APJII-ID" ],
    "mnt_lower" : [ "MNT-APJII-ID" ],
    "date_updated" : "2026-02-16",
    "source" : "IDNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS154571",
    "as_name" : "IRINN-ZENFIBER-AS-IN",
    "description" : [ "ZENFIBER BROADBAND SERVICES PRIVATE LIMITED" ],
    "country" : "IN",
    "admin_contacts" : [ "SB1398-AP" ],
    "tech_contacts" : [ "TD547-AP" ],
    "mnt_irt" : [ "IRT-ZENFIBER-IN" ],
    "mnt_routes" : [ "MAINT-IN-ZENFIBER" ],
    "mnt_by" : [ "MAINT-IN-IRINN" ],
    "date_updated" : "2026-03-27",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-ZENFIBER-IN",
    "address" : [ "3, SASADHAR TARAFDAR ROAD Upasham Clinic, SUKCHAR, Panihati,Kolkata,West Bengal-700115" ],
    "email" : [ "ipadmin@zenfier.in" ],
    "abuse_mailbox" : [ "abuse@zenfiber.in" ],
    "admin_contacts" : [ "SB1398-AP" ],
    "tech_contacts" : [ "TD547-AP" ],
    "mnt_by" : [ "MAINT-IN-ZENFIBER" ],
    "date_updated" : "2026-04-17",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "SB1398-AP",
    "name" : "SUMANTRA BHATTACHARYA",
    "address" : [ "3, SASADHAR TARAFDAR ROAD Upasham Clinic, SUKCHAR, Panihati,Kolkata,West Bengal-700115" ],
    "country" : "IN",
    "email" : [ "sumantra@zenfiber.in" ],
    "phone" : [ "+91 8981978002" ],
    "mnt_by" : [ "MAINT-IN-IRINN" ],
    "date_updated" : "2026-03-26",
    "source" : "APNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "TD547-AP",
    "name" : "TECHNICAL DIRECTOR",
    "address" : [ "3, SASADHAR TARAFDAR ROAD Upasham Clinic, SUKCHAR, Panihati,Kolkata,West Bengal-700115" ],
    "country" : "IN",
    "email" : [ "ipadmin@zenfier.in" ],
    "phone" : [ "+91 8981978002" ],
    "admin_contacts" : [ "SB1398-AP" ],
    "tech_contacts" : [ "SB1398-AP" ],
    "mnt_by" : [ "MAINT-IN-ZENFIBER" ],
    "date_updated" : "2026-03-26",
    "source" : "APNIC"
  } ]
}

Peers

AS Number	Description	Country
AS142289	Roxonic Systems	NL

Upstreams

AS Number	Description	Country
AS142289	Roxonic Systems	NL

Contacts

Email Contacts

hostmaster@idnic.net ipadmin@zenfier.in sumantra@zenfiber.in

Abuse Contacts

abuse@zenfiber.in