Contents

• 2.4 GHz (802.11b/g/n/ax/be)
• 5 GHz (802.11a/h/n/ac/ax/be)
• 6 GHz (802.11ax/be)

2.4 GHz (802.11b/g/n/ax/be)

2.4 GHz (802.11b/g/n/ax/be)[edit]

See also: Electromagnetic interference at 2.4 GHz § Wi-Fi

14 channels are designated in the 2.4 GHz range, spaced 5 MHz apart from each other except for a 12 MHz space before channel 14.^[2] The abbreviation F₀ designates each channel's fundamental frequency.

#	F0 (MHz)	DSSS						OFDM													Most of world [3][4][5][6] [7][8][9][10]	North America [3]	hide Japan [3]
		Frequency range (MHz)	Channel 22 MHz					Frequency range (MHz)	Channel 20 MHz				Center frequency index 40 MHz
1	2412	2401–2423	1	2	3	—	—	2402–2422	1	2	3	—	3	—	4	—	5	—	—	—	Yes	Yes	Yes
2	2417	2406–2428				4		2407–2427				4							6
3	2422	2411–2433					5	2412–2432	5					7
4	2427	2416–2438	6					2417–2437		6						8
5	2432	2421–2443		7				2422–2442			7							9
6	2437	2426–2448			8			2427–2447				8								10
7	2442	2431–2453				9		2432–2452	9				11
8	2447	2436–2458					10	2437–2457		10					—
9	2452	2441–2463	11					2442–2462			11						—
10	2457	2446–2468		12				2447–2467				12							—
11	2462	2451–2473			13			2452–2472	13					—
12	2467	2456–2478				—		2457–2477		—						—						avoidedB
13	2472	2461–2483					—	2462–2482			—							—
14	2484	2473–2495	14					—													No	No	11b onlyC
Notes: ^A In the 2.4 GHz bands bonded 40 MHz channels are uniquely named by the primary and secondary 20 MHz channels, e.g. 9+13. In the 5 GHz bands they are denoted by the center of the wider band and the primary 20 MHz channel e.g. 42[40] ^B In the US, 802.11 operation on channels 12 and 13 is allowed under low power conditions. The 2.4 GHz Part 15 band in the US allows spread-spectrum operation as long as the 50 dB bandwidth of the signal is within the range of 2,400–2,483.5 MHz[11] which fully encompasses channels 1 through 13. A Federal Communications Commission (FCC) document clarifies that only channel 14 is forbidden and that low-power transmitters with low-gain antennas may operate legally in channels 12 and 13.[12] Channels 12 and 13 are nevertheless not normally used in order to avoid any potential interference in the adjacent restricted frequency band, 2,483.5–2,500 MHz,[13] which is subject to strict emission limits set out in 47 CFR § 15.205.[14] Per recent FCC Order 16–181, "an authorized access point device can only operate in the 2483.5–2495 MHz band when it is operating under the control of a Globalstar Network Operating Center and that a client device can only operate in the 2483.5–2495 MHz band when it is operating under the control of an authorized access point"[15] ^C Channel 14 is valid only for DSSS and CCK modes (Clause 18 a.k.a. 802.11b) in Japan. OFDM (i.e., 802.11g) may not be used. (IEEE 802.11-2007 § 19.4.2) Nations apply their own RF emission regulations to the allowable channels, allowed users and maximum power levels within these frequency ranges. Network operators should consult their local authorities as these regulations may be out of date as they are subject to change at any time. Most of the world will allow the first thirteen channels in the spectrum.

5 GHz (802.11a/h/n/ac/ax/be)

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5 GHz (802.11a/h/n/ac/ax/be)[edit]

Ch. 20 MHz	F0 (MHz)	Frequency range (MHz)	F0 index			US FCC U-NII band(s)	Australia [8]	United States [23]	Canada [24][25]	United Kingdom [26]	Europe [27][28][29][30][31][32]	Russia [33]	Japan [34][35][36]	India [37][38][39]	Singa- pore [40][41]	China [42][43]	Israel [7]	Korea [44][45]	Turkey [46]	South Africa [47]	Brazil [4][48]	Taiwan [49]	New Zealand [50]	Bahrain [51]	Vietnam [52]	Indonesia [53]	Philippines [54]
			40 MHz	80 MHz	160 MHz
32	5160	5150–5170				U-NII-1	Indoors	Yes	Indoors	Indoors/TPC or [note 1] [note 2]	Indoors/TPC or [note 1] [note 2]	Indoors/TPC [note 3]	Indoors	Yes	Yes	Indoors	Indoors	Indoors	Indoors	Un­known	Indoors/TPC	Yes	Indoors	Indoors	Indoors	Indoors	Indoors
36	5180	5170–5190	38	42	50															Indoors/DFS/ TPC
40	5200	5190–5210
44	5220	5210–5230	46
48	5240	5230–5250																Indoors[note 4]
52	5260	5250–5270	54	58		U-NII-2A	Indoors/DFS/ TPC or[note 5]	DFS/TPC or [note 6]	DFS/TPC or [note 6]	Indoors/DFS /TPC or [note 1] [note 2]	Indoors/DFS /TPC or [note 1] [note 2]		Indoors/DFS/ TPC	Indoors	DFS/TPC or [note 5]	DFS/TPC	Indoors/DFS/ TPC or[note 5]	DFS/TPC	Indoors/DFS/ TPC		Indoors/DFS/ TPC	DFS	DFS/TPC or [note 5]	Indoors/DFS/ TPC or[note 5]	DFS/TPC or [note 5]
56	5280	5270–5290
60	5300	5290–5310	62
64	5320	5310–5330
68	5340	5330–5350	70	74	82									Indoors/DFS/TPC						Un­known
72	5360	5350–5370				U-NII-2B	Unused
76	5380	5370–5390	78
80	5400	5390–5410
84	5420	5410–5430	86	90
88	5440	5430–5450
92	5460	5450–5470	94
96	5480	5470–5490				U-NII-2C	DFS/TPC or [note 6]	DFS/TPC or [note 6]	DFS/TPC or [note 6]	DFS/TPC or [note 7] [note 8]	DFS/TPC or [note 7] [note 8]	No	DFS/TPC	Yes	DFS/TPC	No	Indoors/DFS/ TPC or[note 6][note 9]	DFS/TPC	DFS/TPC	Un­known	DFS/TPC	DFS	DFS/TPC or [note 6]	No	DFS/TPC or [note 6]	No	Indoors
100	5500	5490–5510	102	106	114															Yes
104	5520	5510–5530												DFS/TPC or [note 10]
108	5540	5530–5550	110
112	5560	5550–5570
116	5580	5570–5590	118	122
120	5600	5590–5610					No		No
124	5620	5610–5630	126
128	5640	5630–5650
132	5660	5650–5670	134	138			DFS/TPC or [note 6]		DFS/TPC or [note 6]		DFS/SRD ch 138 & 142; DFS/TPC otherwise	Indoors/TPC [note 3]
136	5680	5670–5690
140	5700	5690–5710	142
144	5720	5710–5730				U-NII-2C/3					SRD [note 11]						Indoors[note 12]		No	No
		5730–5735	—			U-NII-3	Un­known						Un­known
149	5745	5735–5755	151	155	163		Yes	Yes	Yes	SRD (200 mW)			No	Indoors	Yes	Yes	Indoors[note 12]	Yes	No	No	Yes	Yes	Yes	DFS/TPC/ Fixed	Yes	Yes
153	5765	5755–5775
157	5785	5775–5795	159
161	5805	5795–5815
165	5825	5815–5835	167	171																						No
169	5845	5835–5855				U-NII-3/4		Indoors[55]	No	SRD (25 mW) [note 11]				Yes	No	No		No			No	No	No	No	No
173	5865	5855–5875	175			U-NII-4						No															No
177	5885	5875–5895					No			No	No			No			No
Ch. 20 MHz	F0 (MHz)	Frequency range (MHz)	40 MHz	80 MHz	160 MHz	US FCC U-NII band(s)	Australia	United States	Canada	United Kingdom	Europe	Russia	Japan	India	Singapore	China	Israel	Korea	Turkey	South Africa	Brazil	Taiwan	New Zealand	Bahrain	Vietnam	Indonesia	Philippines

6 GHz (802.11ax/be)

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The 8 U-NII frequency bands are:

Name	Freq. Range (GHz)	Bandwidth (MHz)	Max Power	Max EIRP
U-NII-1	5.150–5.250	100	1 W	200 W (53 dBm)
U-NII-2A	5.250–5.350	100	250 mW	1 W
U-NII-2B	5.350–5.470	120	—	—
U-NII-2C	5.470–5.725	255	250 mW	1 W
U-NII-3	5.725-5.850	125	1 W	200 W
U-NII-4	5.850–5.925	75	—	—
U-NII-5	5.925–6.425	320	—	36 dBm 30 dBm (LPI)
U-NII-6	6.425–6.525	320	—	30 dBm (LPI)
U-NII-7	6.525–6.875	320	—	36 dBm 30 dBm (LPI)
U-NII-8	6.875–7.125	320	—	30 dBm (LPI)