Trinidad and Tobago — Caribbean IPv6 Monitor

Total Domains13

DNS (operational)12

Mail (operational)12

Web (operational)9

DNSSEC13

Economy score26.9%

IPv6 pref. %22.06%

BGP networks (routing visibility)

Combines Hurricane Electric BGP route visibility with per-ASN IPv6 preferred from APNIC Labs for economy TT. Rows on HE are green only when IPv6 routes are announced; red when IPv4-only (even if APNIC shows some IPv6 preference). ASNs listed only by APNIC (HE columns N/A) are colored by IPv6 preferred and may not be connected to other ASNs in this economy.

BGP and APNIC per-ASN data for Trinidad and Tobago (TT). Hurricane Electric. APNIC Labs stats.

AS27800	Digicel Trinidad and Tobago Ltd.	66.48%	56	2	Yes	70%	valid (7/10 valid)
AS27665	Columbus Communications Trinidad Limited.	0.04%	151	96	Yes	90%	valid (9/10 valid)
AS27924	AMPLIA COMMUNICATIONS LTD.	0.03%	49	1	Yes	100%	valid (10/10 valid)
AS5639	Telecommunication Services of Trinidad and Tobago	0.04%	159	1	Yes	100%	valid (10/10 valid)
AS27789	GREENDOT	0.03%	36	2	Yes	100%	valid (10/10 valid)
AS263222	RVR INTERNATIONAL LIMITED	0.02%	35	51	Yes	100%	valid (10/10 valid)
AS61478	AIR LINK COMMUNICATIONS	26.63%	3	1	Yes	100%	valid (4/4 valid)
AS14593	SPACEX-STARLINK - Space Exploration Technologies Corporation	36.92%	N/A	N/A	N/A	100%	valid (10/10 valid)
AS136787	PACKETHUBSA-AS-AP - PacketHub S.A.	0.00%	N/A	N/A	N/A	100%	valid (10/10 valid)
AS266792	NOVO COMMUNICATIONS LIMITED	0.08%	2	0	No	0%	unknown (0/2 valid)
AS393629	GDGR - Green Dot Grenada Ltd	0.00%	N/A	N/A	N/A	100%	valid (5/5 valid)
AS28067	The University of the West IndiesSt Augustine Camp	0.00%	6	1	Yes	100%	valid (7/7 valid)
AS26317	Lisa Communications Ltd	0.53%	10	0	No	0%	unknown (0/10 valid)
AS13335	CLOUDFLARENET - Cloudflare, Inc.	100.00%	N/A	N/A	N/A	80%	invalid (8/10 valid)
AS62651	NETPROTECT-DP - Strong Technology, LLC.	0.00%	N/A	N/A	N/A	100%	valid (10/10 valid)
AS36183	AKAMAI-AS - Akamai Technologies, Inc.	100.00%	N/A	N/A	N/A	100%	valid (10/10 valid)
AS15753	BP-US-2 - BP International Ltd	0.00%	N/A	N/A	N/A	80%	valid (8/10 valid)
AS274008	INDEPENDENT CABLE NETWORK OF TRINIDAD & TOBAGO LIMITED	0.00%	1	0	No	100%	valid (1/1 valid)
AS137409	GSLNETWORKS-AS-AP - GSL Networks Pty LTD	0.00%	N/A	N/A	N/A	10%	invalid (1/10 valid)
AS54113	FASTLY - Fastly, Inc.	0.00%	N/A	N/A	N/A	100%	valid (10/10 valid)
AS15169	GOOGLE - Google LLC	0.00%	N/A	N/A	N/A	100%	valid (10/10 valid)
AS55256	NETSKOPE - Netskope Inc	0.00%	N/A	N/A	N/A	10%	valid (1/10 valid)
AS264811	AIR LINK COMMUNICATIONS	0.00%	4	2	Yes	100%	valid (2/2 valid)
AS11947	Cablenett Limited	0.00%	6	3	Yes	100%	valid (9/9 valid)
AS274045	CARIBBEAN LATIN AMERICA TECHNOLOGY LIMITED	0.00%	1	17	Yes	100%	valid (10/10 valid)

Hurricane Electric snapshot 2026-08-03 19:49 UTC (bgp.he.net). APNIC Labs per-ASN snapshot 2026-08-03 19:49 UTC (stats.labs.apnic.net). RPKI columns use RIPEstat on a sample of announced prefixes (not exhaustive ROA coverage).

Detailed IPv6 & DNSSEC Service Interface Statistics

				DNS	Mail	Web	DNSSEC
acs-aec.org	Association of Caribbean States	Regional	2	[2] 6/6/6 [O]	[1 MX] v4 smtp 5/5/5 v6 smtp 4/4/4 [O]	[0] error: Get "http://www.acs-aec.org/en": context deadline exceeded	U/-/-	quarantine
bmobile.co.tt	bmobile (TSTT)	Telecommunications	0	[4] 0/0/0 [O]	[1 MX] v4 smtp 1/1/1 v6 smtp 0/0/0 [O]	[1] 0/0/0 [I]	U/-/-	p=quarantine, sp=none
canto.org	CANTO (Caribbean Association of National Telecommunication Organizations)	Regional	1	[3] 0/0/0 [O]	[1 MX] v4 smtp 4/4/4 v6 smtp 4/4/4 [O]	[1] 0/0/0 [I]	U/-/-	none
central-bank.org.tt	Central Bank of Trinidad and Tobago	Government	1	[8] 8/8/8 [O]	[2 MX] v4 smtp 2/2/2 v6 smtp 0/0/0 [O]	[1] 0/0/0 [I]	U/-/-	quarantine
ctu.int	Caribbean Telecommunications Union	Regional	2	[2] 2/2/2 [O]	[1 MX] v4 smtp 4/4/4 v6 smtp 4/4/4 [O]	[1] 0/0/0 [I]	U/-/-	reject
digiceltt.com	Digicel Trinidad and Tobago	Telecommunications	1	[8] 1/1/1 [O]	[1 MX] v4 smtp 1/1/1 v6 smtp 0/0/0 [O]	[0] error: Get "https://www.digiceltt.com/": tls: failed to verify certificate: x509: certificate has expired or is not yet valid: current time 2026-08-03T19:48:10Z is after 2024-09-10T23:59:59Z	U/-/-	reject
flowtrinidad.com	FLOW Trinidad and Tobago	Telecommunications	2	[2] 6/6/6 [O]	[1 MX] v4 smtp 1/1/1 v6 smtp 0/0/0 [I]	[0] error: Get "https://www.flowtrinidad.com/": context deadline exceeded	S/?/? (partial)	quarantine
gov.tt	Government of the Republic of Trinidad and Tobago	Government	1	[0] -/-/- [-]	[3 MX] v4 smtp 3/3/3 v6 smtp 0/0/0 [M]	[1] 0/0/0 [I]	S/?/? (partial)	SERVFAIL
igovtt.tt	National Information and Communication Technology Company (iGovTT)	Government	1	[2] 2/2/2 [O]	[3 MX] v4 smtp 3/3/3 v6 smtp 0/0/0 [O]	[0] error: Get "https://www.igovtt.tt/": tls: failed to verify certificate: x509: certificate signed by unknown authority	U/-/-	quarantine
sta.uwi.edu	The University of the West Indies, St. Augustine Campus	Education	1	[4] 0/0/0 [I]	[1 MX] v4 smtp 4/4/4 v6 smtp 4/4/4 [O]	[1] 0/0/0 [I]	U/-/-	No record
tatt.org.tt	Telecommunications Authority of Trinidad and Tobago	Government	1	[4] 4/4/4 [O]	[2 MX] v4 smtp 4/4/4 v6 smtp 0/0/0 [O]	[1] 0/0/0 [I]	U/-/-	p=quarantine, sp=none
tstt.co.tt	Telecommunications Services of Trinidad and Tobago	Telecommunications	1	[2] 0/0/0 [O]	[1 MX] v4 smtp 4/4/4 v6 smtp 4/4/4 [O]	[1] 0/0/0 [I]	U/-/-	quarantine
ttconnect.gov.tt	ttconnect (Government service portal)	Government	0	[4] 0/0/0 [O]	[0] -/-/- [-]	[1] 0/0/0 [I]	U/-/-	No record

Want to suggest a new domain? Submit a pull request for those files in config/domains.

How to Read Results

Each test cell combines a color status and a compact technical summary. The notes below explain both in plain language.

Status and points

IPv4-only No IPv6 operational path observed for this test result. (0 points per column)
Dual-stack Both IPv4 and IPv6 paths are present; IPv6 is available with IPv4. (1 point per column)
IPv6-only IPv6 path is operational for this test result. (1 point per column)
Unknown Measurement was not conclusive or the test was not available. (0 points per column)

Per-test output format

DNS

Format: [NS count] v6 configured/reachable/operational [location]

Meaning: Shows how many authoritative name servers exist, and how many IPv6 endpoints are configured, responsive, and operational.

Configured/Reachable/Operational maps to DNS server endpoints discovered from NS records.
Location tags indicate hosting locality context for the tested domain.

Mail

Format: [MX count] v4 smtp configured/reachable/operational v6 smtp configured/reachable/operational [location]

Meaning: Shows MX footprint and SMTP health per IP family. Operational means an SMTP banner and EHLO exchange succeeded on port 25.

v4 and v6 SMTP are measured separately.
MX presence without successful SMTP handshake can still produce non-operational results.

Web

Format: [site count] v6 configured/reachable/operational [location]

Meaning: Shows IPv6 web endpoint readiness for the discovered HTTPS host. Operational means family-specific HTTPS requests complete successfully.

Configured/Reachable are derived from discovered A/AAAA records on the final web host.
Operational reflects request success by family (tcp4 and tcp6 tested separately).

DNSSEC

Format: S/?/? (partial), U/-/-, or error text

Meaning: Shows whether DNSKEY data is observed at the apex (signed), absent (unsigned), or unavailable due to lookup error.

S/?/? (partial) indicates partial DNSSEC signal only.
Full chain validation is not yet performed by this checker.

DMARC

Format: policy or p=…, sp=…

Meaning: Published DMARC policy at _dmarc.{domain} (DNS TXT). Shows organizational policy (p=) and subdomain policy (sp=) when set.

No record (NXDOMAIN or no DMARC TXT) scores 0% on the ramp (red).
p=none scores 25%; quarantine 75%; reject 100%. Stricter of p and sp drives the color.
Lookup failures (timeout, SERVFAIL) show grey — not scored as absent.
Does not measure SPF/DKIM pass rates — policy publication only.

Location tag key

[I] Inside: Service hostname is the tested domain or a subdomain under it.
[P] Parent-related: Service hostname resolves via a parent/suffix relationship to the tested domain.
[O] Outside: Service hostname is outside the tested domain suffix.
[M] Mixed: Multiple service hosts span more than one location class.
[-] Not available: No location could be derived from the observed data.

How score is built

Row score: 0-4 points. Row score = DNS + Mail + Web + DNSSEC, where each column contributes 0 or 1 point.

IPv4-only: 0 points
Dual-stack: 1 point
IPv6-only: 1 point
Unknown: 0 points

DNSSEC uses signed=1 point; unsigned, error, and unknown=0 points.

Economy score: Economy deployment score (%) = average(RowScore/4) across domains x 100.

Row score does not include DMARC or RPKI in v1; those columns use the same 0–100% red→green ramp as IPv6 preferred %.

DMARC ramp (domain table)

No DMARC record: 0% — No _dmarc TXT at the domain apex (NXDOMAIN or no v=DMARC1 in answers).
Lookup failed: grey — DNS timeout or non-NXDOMAIN error; use the dmarcian link to re-check.
p=none (monitoring): 25% — Record published; organizational policy is none.
quarantine: 75% — Stricter of p= and sp= is quarantine.
reject: 100% — Stricter of p= and sp= is reject.

RPKI ramp (BGP table)

RPKI %: 0–100% — Share of sampled prefixes RIPEstat marked valid (e.g. 8/10 → 80%). Invalid and unknown prefixes lower the percentage.
RPKI status: text — Worst result in the sample (valid, invalid, or unknown) with counts — use the link for RIPEstat details.
No data: grey — RIPEstat error, no prefixes, or not yet collected.