ResearchRouting table, RPKI, IRR & looking glass

AS393818 Tucows.com Co.

AS393818 (TUCOWS-TRS-DNS1) is registered to Tucows.com Co. in CA, through ARIN. It originates 2 prefixes in the global routing table.

1
IPv4 prefixes
1
IPv6 prefixes
256
IPv4 addresses
100%
RPKI valid

Who holds AS393818

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS393818
Handle
TUCOWS-TRS-DNS1
Organization
Tucows.com Co.
Country
CA
Registry
ARIN
ASPA
None published
WHOIS recordARIN
#
# 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:       393818
ASName:         TUCOWS-TRS-DNS1
ASHandle:       AS393818
RegDate:        2015-02-20
Updated:        2022-08-04
Ref:            https://rdap.arin.net/registry/autnum/393818


OrgName:        Tucows.com Co.
OrgId:          TUCOW
Address:        96 Mowat Avenue
City:           Toronto
StateProv:      ON
PostalCode:     M6K-3M1
Country:        CA
RegDate:        2006-02-07
Updated:        2025-10-14
Ref:            https://rdap.arin.net/registry/entity/TUCOW


OrgTechHandle: NOC2038-ARIN
OrgTechName:   Network Operations Center
OrgTechPhone:  +1-416-531-5584 
OrgTechEmail:  arin-maint@tucows.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC2038-ARIN

OrgAbuseHandle: AST147-ARIN
OrgAbuseName:   Abuse Security Team
OrgAbusePhone:  +1-416-535-0123 
OrgAbuseEmail:  arin-abuse@tucows.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/AST147-ARIN

OrgTechHandle: HALAS9-ARIN
OrgTechName:   Halassy-Creamer, Joshua 
OrgTechPhone:  +1-416-535-0123 
OrgTechEmail:  jhalassycreamer@tucowsinc.com
OrgTechRef:    https://rdap.arin.net/registry/entity/HALAS9-ARIN

OrgNOCHandle: NOC12422-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-416-535-0123 
OrgNOCEmail:  arin-noc@tucows.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC12422-ARIN

OrgTechHandle: LEVYR7-ARIN
OrgTechName:   Levy, Reg 
OrgTechPhone:  +1-323-880-0831 
OrgTechEmail:  rlevy@tucows.com
OrgTechRef:    https://rdap.arin.net/registry/entity/LEVYR7-ARIN

OrgTechHandle: FJO19-ARIN
OrgTechName:   Obispo, Francisco Jose
OrgTechPhone:  +1-949-706-2300 
OrgTechEmail:  francisco@unr.com
OrgTechRef:    https://rdap.arin.net/registry/entity/FJO19-ARIN

OrgTechHandle: LEEKE55-ARIN
OrgTechName:   Lee, Kevin 
OrgTechPhone:  +1-416-535-0123 
OrgTechEmail:  klee@tucows.com
OrgTechRef:    https://rdap.arin.net/registry/entity/LEEKE55-ARIN

OrgTechHandle: DIACO-ARIN
OrgTechName:   Diaconita, Dragos 
OrgTechPhone:  +1-416-535-0123 
OrgTechEmail:  ddiaconita@tucows.com
OrgTechRef:    https://rdap.arin.net/registry/entity/DIACO-ARIN

OrgTechHandle: ZAMBR10-ARIN
OrgTechName:   Zambrano, Manuel 
OrgTechPhone:  +1-949-706-2300 
OrgTechEmail:  mzambrano@tucows.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ZAMBR10-ARIN

OrgTechHandle: OPERA26-ARIN
OrgTechName:   Operations Team
OrgTechPhone:  +1-416-535-0123 
OrgTechEmail:  dnstech@tucows.com
OrgTechRef:    https://rdap.arin.net/registry/entity/OPERA26-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.
#

What AS393818 announces

Prefixes originated by AS393818 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
1
IPv6 prefixes
1
IPv4 addresses
256 (1 /24s)
RPKI valid
2 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS393818
4
With an IRR route object
2 100%

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (1)
IPv6 (1)

RPKI valid   RPKI invalid   no ROA covers it

Who AS393818 is reached through

The AS just before AS393818 in the paths our looking glass collectors hold, for 2 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
RADBTUCOWS-TRS-DNS1MAINT-AS15348

Route objects with origin AS393818: RADB 4

as-sets that list AS393818 (8)