Country stats for last year of data

For these country-level stats, the most recent test from each client address is examined within aggregated IP blocks (/24 for IPv4 and /40 for IPv6). If the most recent test in an IP block shows spoofing, the IP block is considered to allow spoofing. If ALL clients indicate blocking, the IP block is considered to block spoofing. (It is considered NAT blocking if there are no non-NAT tests found.) If some clients showed spoofing but the most recent tests show blocking (and there's no evidence of a change in blocking policy), then the IP block is considered "inconsistent". On the map, inconsistent results are counted as spoofing for simplicity.

Country	Client IP blocks	Spoofing IP blocks	Blocking IP blocks		Inconsistent IP blocks	Client ASNs	Spoofing ASNs
			Non-NAT	NAT
bra (Brazil)	2639	389 (14.7%)	556 (21.1%)	1672 (63.4%)	22 (0.8%)	602	226 (37.5%)
egy (Egypt)	374	110 (29.4%)	0 (0.0%)	264 (70.6%)	0 (0.0%)	5	1 (20.0%)
usa (United States)	1641	92 (5.6%)	479 (29.2%)	1065 (64.9%)	5 (0.3%)	307	60 (19.5%)
tun (Tunisia)	98	70 (71.4%)	0 (0.0%)	28 (28.6%)	0 (0.0%)	5	4 (80.0%)
ind (India)	468	42 (9.0%)	43 (9.2%)	381 (81.4%)	2 (0.4%)	36	12 (33.3%)
nld (Netherlands)	455	35 (7.7%)	107 (23.5%)	313 (68.8%)	0 (0.0%)	73	19 (26.0%)
chl (Chile)	189	31 (16.4%)	14 (7.4%)	144 (76.2%)	0 (0.0%)	19	3 (15.8%)
rus (Russian Federation)	506	28 (5.5%)	37 (7.3%)	441 (87.2%)	0 (0.0%)	116	14 (12.1%)
zaf (South Africa)	156	21 (13.5%)	7 (4.5%)	128 (82.1%)	0 (0.0%)	37	14 (37.8%)
grc (Greece)	116	20 (17.2%)	7 (6.0%)	89 (76.7%)	0 (0.0%)	6	1 (16.7%)
rou (Romania)	103	20 (19.4%)	26 (25.2%)	57 (55.3%)	0 (0.0%)	13	2 (15.4%)
tur (Turkey)	555	20 (3.6%)	33 (5.9%)	500 (90.1%)	2 (0.4%)	56	14 (25.0%)
idn (Indonesia)	37	18 (48.6%)	5 (13.5%)	14 (37.8%)	0 (0.0%)	22	9 (40.9%)
jpn (Japan)	217	18 (8.3%)	42 (19.4%)	157 (72.4%)	0 (0.0%)	38	13 (34.2%)
vnm (Vietnam)	61	18 (29.5%)	12 (19.7%)	31 (50.8%)	0 (0.0%)	8	3 (37.5%)
gbr (United Kingdom)	325	17 (5.2%)	63 (19.4%)	242 (74.5%)	3 (0.9%)	76	16 (21.1%)
chn (China)	327	16 (4.9%)	70 (21.4%)	241 (73.7%)	0 (0.0%)	28	4 (14.3%)
ken (Kenya)	74	16 (21.6%)	5 (6.8%)	53 (71.6%)	0 (0.0%)	22	8 (36.4%)
mwi (Malawi)	54	16 (29.6%)	0 (0.0%)	36 (66.7%)	2 (3.7%)	8	3 (37.5%)
ven (Venezuela)	107	15 (14.0%)	10 (9.3%)	79 (73.8%)	3 (2.8%)	15	2 (13.3%)
aus (Australia)	158	14 (8.9%)	33 (20.9%)	110 (69.6%)	1 (0.6%)	41	10 (24.4%)
can (Canada)	177	14 (7.9%)	35 (19.8%)	128 (72.3%)	0 (0.0%)	40	7 (17.5%)
ita (Italy)	156	14 (9.0%)	16 (10.3%)	124 (79.5%)	2 (1.3%)	32	9 (28.1%)
ecu (Ecuador)	61	13 (21.3%)	10 (16.4%)	38 (62.3%)	0 (0.0%)	16	8 (50.0%)
phl (Philippines)	122	12 (9.8%)	17 (13.9%)	93 (76.2%)	0 (0.0%)	22	7 (31.8%)
hkg (Hong Kong)	60	11 (18.3%)	17 (28.3%)	31 (51.7%)	1 (1.7%)	23	9 (39.1%)
twn (Taiwan)	106	11 (10.4%)	10 (9.4%)	85 (80.2%)	0 (0.0%)	13	3 (23.1%)
dnk (Denmark)	32	10 (31.3%)	8 (25.0%)	14 (43.8%)	0 (0.0%)	11	4 (36.4%)
npl (Nepal)	64	10 (15.6%)	10 (15.6%)	42 (65.6%)	2 (3.1%)	10	7 (70.0%)
ukr (Ukraine)	84	10 (11.9%)	21 (25.0%)	53 (63.1%)	0 (0.0%)	40	9 (22.5%)
mex (Mexico)	237	9 (3.8%)	25 (10.5%)	203 (85.7%)	0 (0.0%)	31	5 (16.1%)
tha (Thailand)	233	9 (3.9%)	8 (3.4%)	215 (92.3%)	1 (0.4%)	16	7 (43.8%)
deu (Germany)	465	8 (1.7%)	107 (23.0%)	349 (75.1%)	1 (0.2%)	63	8 (12.7%)
mus (Mauritius)	31	8 (25.8%)	1 (3.2%)	22 (71.0%)	0 (0.0%)	16	7 (43.8%)
jor (Jordan)	14	7 (50.0%)	0 (0.0%)	7 (50.0%)	0 (0.0%)	2	1 (50.0%)
arg (Argentina)	72	6 (8.3%)	12 (16.7%)	54 (75.0%)	0 (0.0%)	21	4 (19.0%)
col (Colombia)	73	6 (8.2%)	3 (4.1%)	64 (87.7%)	0 (0.0%)	14	4 (28.6%)
pol (Poland)	174	6 (3.4%)	14 (8.0%)	154 (88.5%)	0 (0.0%)	28	1 (3.6%)
ury (Uruguay)	54	6 (11.1%)	9 (16.7%)	39 (72.2%)	0 (0.0%)	7	3 (42.9%)
esp (Spain)	94	5 (5.3%)	13 (13.8%)	75 (79.8%)	1 (1.1%)	23	6 (26.1%)
irn (Iran)	323	5 (1.5%)	58 (18.0%)	260 (80.5%)	0 (0.0%)	47	5 (10.6%)
pry (Paraguay)	33	5 (15.2%)	7 (21.2%)	21 (63.6%)	0 (0.0%)	8	3 (37.5%)
are (United Arab Emirates)	39	4 (10.3%)	4 (10.3%)	30 (76.9%)	1 (2.6%)	6	3 (50.0%)
bol (Bolivia)	69	4 (5.8%)	6 (8.7%)	59 (85.5%)	0 (0.0%)	4	2 (50.0%)
isr (Israel)	36	4 (11.1%)	5 (13.9%)	27 (75.0%)	0 (0.0%)	10	4 (40.0%)
swe (Sweden)	51	4 (7.8%)	14 (27.5%)	33 (64.7%)	0 (0.0%)	19	3 (15.8%)
mdv (Maldives)	9	3 (33.3%)	0 (0.0%)	6 (66.7%)	0 (0.0%)	3	1 (33.3%)
srb (Serbia)	120	3 (2.5%)	1 (0.8%)	116 (96.7%)	0 (0.0%)	11	3 (27.3%)
arm (Armenia)	21	2 (9.5%)	0 (0.0%)	19 (90.5%)	0 (0.0%)	7	2 (28.6%)
bgd (Bangladesh)	29	2 (6.9%)	1 (3.4%)	26 (89.7%)	0 (0.0%)	19	2 (10.5%)
bhr (Bahrain)	25	2 (8.0%)	3 (12.0%)	20 (80.0%)	0 (0.0%)	4	2 (50.0%)
blr (Belarus)	44	2 (4.5%)	0 (0.0%)	42 (95.5%)	0 (0.0%)	6	1 (16.7%)
btn (Bhutan)	7	2 (28.6%)	2 (28.6%)	3 (42.9%)	0 (0.0%)	2	1 (50.0%)
cze (Czech Republic)	21	2 (9.5%)	6 (28.6%)	13 (61.9%)	0 (0.0%)	13	1 (7.7%)
imn (Isle of Man)	2	2 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	2	2 (100.0%)
mda (Moldova, Republic of)	7	2 (28.6%)	2 (28.6%)	3 (42.9%)	0 (0.0%)	4	1 (25.0%)
pak (Pakistan)	42	2 (4.8%)	5 (11.9%)	35 (83.3%)	0 (0.0%)	10	2 (20.0%)
sau (Saudi Arabia)	177	2 (1.1%)	18 (10.2%)	157 (88.7%)	0 (0.0%)	7	2 (28.6%)
sgp (Singapore)	37	2 (5.4%)	11 (29.7%)	24 (64.9%)	0 (0.0%)	11	1 (9.1%)
abw (Aruba)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
ago (Angola)	74	1 (1.4%)	1 (1.4%)	72 (97.3%)	0 (0.0%)	7	1 (14.3%)
alb (Albania)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
bel (Belgium)	33	1 (3.0%)	8 (24.2%)	24 (72.7%)	0 (0.0%)	15	1 (6.7%)
blz (Belize)	7	1 (14.3%)	1 (14.3%)	5 (71.4%)	0 (0.0%)	1	1 (100.0%)
bwa (Botswana)	5	1 (20.0%)	0 (0.0%)	4 (80.0%)	0 (0.0%)	3	1 (33.3%)
che (Switzerland)	71	1 (1.4%)	14 (19.7%)	56 (78.9%)	0 (0.0%)	16	1 (6.3%)
cok (Cook Islands)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	1	1 (100.0%)
cpv (Cape Verde)	3	1 (33.3%)	0 (0.0%)	2 (66.7%)	0 (0.0%)	1	1 (100.0%)
cri (Costa Rica)	10	1 (10.0%)	1 (10.0%)	8 (80.0%)	0 (0.0%)	7	1 (14.3%)
dji (Djibouti)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
dza (Algeria)	42	1 (2.4%)	0 (0.0%)	41 (97.6%)	0 (0.0%)	2	1 (50.0%)
gin (Guinea)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
hun (Hungary)	16	1 (6.3%)	6 (37.5%)	9 (56.3%)	0 (0.0%)	6	1 (16.7%)
kaz (Kazakhstan)	50	1 (2.0%)	2 (4.0%)	47 (94.0%)	0 (0.0%)	11	1 (9.1%)
lbn (Lebanon)	14	1 (7.1%)	2 (14.3%)	11 (78.6%)	0 (0.0%)	5	1 (20.0%)
mmr (Myanmar)	16	1 (6.3%)	0 (0.0%)	15 (93.8%)	0 (0.0%)	9	1 (11.1%)
mng (Mongolia)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
mys (Malaysia)	8	1 (12.5%)	3 (37.5%)	4 (50.0%)	0 (0.0%)	4	1 (25.0%)
nzl (New Zealand)	22	1 (4.5%)	5 (22.7%)	15 (68.2%)	1 (4.5%)	9	2 (22.2%)
pan (Panama)	51	1 (2.0%)	8 (15.7%)	42 (82.4%)	0 (0.0%)	7	1 (14.3%)
pri (Puerto Rico)	9	1 (11.1%)	2 (22.2%)	6 (66.7%)	0 (0.0%)	3	1 (33.3%)
tgo (Togo)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
zmb (Zambia)	4	1 (25.0%)	0 (0.0%)	3 (75.0%)	0 (0.0%)	3	1 (33.3%)
and (Andorra, Principality of)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
aut (Austria)	59	0 (0.0%)	9 (15.3%)	50 (84.7%)	0 (0.0%)	14	0 (0.0%)
aze (Azerbaijan)	29	0 (0.0%)	0 (0.0%)	29 (100.0%)	0 (0.0%)	2	0 (0.0%)
bfa (Burkina Faso)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
bgr (Bulgaria)	34	0 (0.0%)	10 (29.4%)	24 (70.6%)	0 (0.0%)	19	0 (0.0%)
bih (Bosnia and Herzegovina)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
cmr (Cameroon)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
cub (Cuba)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
cyp (Cyprus)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
dom (Dominican Republic)	6	0 (0.0%)	1 (16.7%)	5 (83.3%)	0 (0.0%)	3	0 (0.0%)
est (Estonia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
eth (Ethiopia)	16	0 (0.0%)	0 (0.0%)	16 (100.0%)	0 (0.0%)	2	0 (0.0%)
fin (Finland)	10	0 (0.0%)	6 (60.0%)	4 (40.0%)	0 (0.0%)	4	0 (0.0%)
fji (Fiji)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	0 (0.0%)
fra (France)	99	0 (0.0%)	28 (28.3%)	71 (71.7%)	0 (0.0%)	17	0 (0.0%)
geo (Georgia)	12	0 (0.0%)	0 (0.0%)	12 (100.0%)	0 (0.0%)	3	0 (0.0%)
gha (Ghana)	34	0 (0.0%)	0 (0.0%)	34 (100.0%)	0 (0.0%)	4	0 (0.0%)
gtm (Guatemala)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
hrv (Croatia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
irl (Ireland)	42	0 (0.0%)	12 (28.6%)	30 (71.4%)	0 (0.0%)	17	0 (0.0%)
irq (Iraq)	11	0 (0.0%)	0 (0.0%)	11 (100.0%)	0 (0.0%)	5	0 (0.0%)
isl (Iceland)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
kgz (Kyrgyz Republic (Kyrgyzstan))	9	0 (0.0%)	0 (0.0%)	9 (100.0%)	0 (0.0%)	3	0 (0.0%)
khm (Cambodia, Kingdom of)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
kor (South Korea)	75	0 (0.0%)	46 (61.3%)	29 (38.7%)	0 (0.0%)	7	0 (0.0%)
kwt (Kuwait)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
lbr (Liberia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
lby (Libya)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
lie (Liechtenstein)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
ltu (Lithuania)	26	0 (0.0%)	3 (11.5%)	23 (88.5%)	0 (0.0%)	5	0 (0.0%)
lux (Luxembourg)	9	0 (0.0%)	7 (77.8%)	2 (22.2%)	0 (0.0%)	4	0 (0.0%)
lva (Latvia)	7	0 (0.0%)	3 (42.9%)	4 (57.1%)	0 (0.0%)	5	0 (0.0%)
mar (Morocco)	56	0 (0.0%)	1 (1.8%)	55 (98.2%)	0 (0.0%)	5	0 (0.0%)
mkd (Macedonia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
moz (Mozambique)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
nam (Namibia)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	1	0 (0.0%)
nga (Nigeria)	32	0 (0.0%)	4 (12.5%)	28 (87.5%)	0 (0.0%)	5	0 (0.0%)
nic (Nicaragua)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
nor (Norway)	30	0 (0.0%)	3 (10.0%)	27 (90.0%)	0 (0.0%)	9	0 (0.0%)
omn (Oman)	17	0 (0.0%)	0 (0.0%)	17 (100.0%)	0 (0.0%)	3	0 (0.0%)
per (Peru)	14	0 (0.0%)	4 (28.6%)	10 (71.4%)	0 (0.0%)	4	0 (0.0%)
prt (Portugal)	90	0 (0.0%)	20 (22.2%)	70 (77.8%)	0 (0.0%)	9	0 (0.0%)
pse (Palestinian Territory, Occupied)	12	0 (0.0%)	0 (0.0%)	12 (100.0%)	0 (0.0%)	1	0 (0.0%)
qat (Qatar)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
reu (Reunion [French])	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
rwa (Rwanda)	5	0 (0.0%)	3 (60.0%)	2 (40.0%)	0 (0.0%)	2	0 (0.0%)
sdn (Sudan)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	2	0 (0.0%)
slv (El Salvador)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
som (Somalia)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	2	0 (0.0%)
svk (Slovak Republic)	11	0 (0.0%)	2 (18.2%)	9 (81.8%)	0 (0.0%)	6	0 (0.0%)
svn (Slovenia)	10	0 (0.0%)	1 (10.0%)	9 (90.0%)	0 (0.0%)	5	0 (0.0%)
syr (Syria)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	1	0 (0.0%)
tcd (Chad)	10	0 (0.0%)	6 (60.0%)	4 (40.0%)	0 (0.0%)	3	0 (0.0%)
tkm (Turkmenistan)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
uga (Uganda)	21	0 (0.0%)	4 (19.0%)	17 (81.0%)	0 (0.0%)	6	0 (0.0%)
uzb (Uzbekistan)	3	0 (0.0%)	1 (33.3%)	2 (66.7%)	0 (0.0%)	2	0 (0.0%)
vgb (British Virgin Islands)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)