IPv4 range · 2,048 addresses

103.35.56.0/21

Now

APNIC statistics: Allocated (dated 2015-08-11) (only part of the range) (JP), in the latest file
Registry: Not known
Holder: Not looked up

Latest change

Released Released from hold (APNIC lists it as 'available')

Reported: 2015-08-10 (APNIC)
Confidence: Observed only
Inventory: APNIC's statistics now list it as 'available'; reissue not confirmed

Hold

Released from hold: 2015-08-10
Now: Possible reissue candidate; not confirmed available.

Timeline (1)

Every change the tracker has found, newest first. It covers ARIN from 2008-12-01, the RIPE NCC from 2010-04-23, APNIC from 2008-02-15, LACNIC from 2012-06-29 and AFRINIC from 2012-10-03.

2015-08-10 APNIC Released Released from hold (APNIC lists it as 'available') Observed only

Statistics: 103.35.56.0/21 reserved on 2015-08-10, available on 2015-08-11
Inventory: APNIC's statistics now list it as 'available'; reissue not confirmed

APNIC's statistics show it reserved on 2015-08-10 and available on 2015-08-11. APNIC moved it from its reserved (held) records to the status it calls 'available'. That is APNIC's own label: whether and when it is reissued is not confirmed. Another change to this range was reported the day before or after (2015-08-11: Added 103.35.56.0/22; 2015-08-11: Added 103.35.60.0/22), so the before-and-after statistics may include it.

Evidence (3) · classifier 1.4.0, 2026-10-14 00:02 UTC

Statistics Found by comparing APNIC's daily statistics: 103.35.56.0/21 reserved on 2015-08-10, available on 2015-08-11 source · retrieved 2026-10-12 21:21 UTC
Before APNIC delegated statistics 2015-08-10, before the change: reserved source · retrieved 2026-10-12 21:21 UTC
After APNIC delegated statistics 2015-08-11, after the change: available source · retrieved 2026-10-12 21:21 UTC

Classification history for this change (4 versions)

2026-10-13 05:08 UTC: Released from hold (APNIC lists it as 'available'), observed only (classifier 1.3.0)
2026-10-13 08:15 UTC: Released from hold (APNIC lists it as 'available'), observed only (classifier 1.3.1)
2026-10-13 14:58 UTC: Released from hold (APNIC lists it as 'available'), observed only (classifier 1.3.2)
2026-10-14 00:02 UTC: Released from hold (APNIC lists it as 'available'), observed only (classifier 1.4.0) current

Changes to overlapping ranges

Date	Registry	Range	Recorded as	What happened
2021-06-08	APNIC	103.35.56.0/22	Transfer log	Transfer out of APNIC
2021-06-07	RIPE NCC	103.35.56.0/22	Transfer log	Transfer into the RIPE NCC
2015-08-11	APNIC	103.35.56.0/22	+ Registered	Apparent new issuance
2015-08-11	APNIC	103.35.60.0/22	+ Registered	Apparent new issuance

Date

Registry

Range

Recorded as

What happened

2021-06-08

APNIC

103.35.56.0/22

Transfer log

Transfer out of APNIC

2021-06-07

RIPE NCC

103.35.56.0/22

Transfer log

Transfer into the RIPE NCC

2015-08-11

APNIC

103.35.56.0/22

+ Registered

Apparent new issuance

2015-08-11

APNIC

103.35.60.0/22

+ Registered

Apparent new issuance

Transfer records (2)

Date (UTC)	Log	Type	Range moved	From	To
2021-06-07 23:05 UTC	APNIC	Resource transfer	103.35.56.0/22	Syn Ltd APNIC	uk-syn RIPE NCC
2021-06-07 19:00 UTC	RIPE NCC	Resource transfer	103.35.56.0/22	(no name given) APNIC	SYN LTD RIPE NCC

Date (UTC)

Log

Type

Range moved

From

2021-06-07 23:05 UTC

APNIC

Resource transfer

103.35.56.0/22

Syn Ltd APNIC

uk-syn RIPE NCC

2021-06-07 19:00 UTC

RIPE NCC

Resource transfer

103.35.56.0/22

(no name given) APNIC

SYN LTD RIPE NCC

Every record in the ARIN, RIPE NCC, APNIC, LACNIC and AFRINIC transfer logs that moved any part of this IPv4 range (ARIN's from 2009, the RIPE NCC's from 2012, APNIC's from 2010, LACNIC's from 2016, AFRINIC's from 2018). A transfer between two registries is in both logs.

RDAP lookups

Not looked up. The tracker queries RDAP for changes as they're reported (on first sight, after 24 hours and after seven days); older changes aren't looked up because today's RDAP says nothing about the past.

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