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)	2752	423 (15.4%)	597 (21.7%)	1707 (62.0%)	25 (0.9%)	644	247 (38.4%)
egy (Egypt)	440	140 (31.8%)	0 (0.0%)	300 (68.2%)	0 (0.0%)	5	2 (40.0%)
usa (United States)	1709	111 (6.5%)	483 (28.3%)	1110 (65.0%)	5 (0.3%)	313	65 (20.8%)
tun (Tunisia)	79	53 (67.1%)	0 (0.0%)	26 (32.9%)	0 (0.0%)	5	4 (80.0%)
chl (Chile)	214	34 (15.9%)	11 (5.1%)	169 (79.0%)	0 (0.0%)	20	3 (15.0%)
rus (Russian Federation)	334	32 (9.6%)	29 (8.7%)	273 (81.7%)	0 (0.0%)	100	18 (18.0%)
ind (India)	416	31 (7.5%)	43 (10.3%)	339 (81.5%)	3 (0.7%)	32	7 (21.9%)
nld (Netherlands)	467	30 (6.4%)	111 (23.8%)	325 (69.6%)	1 (0.2%)	69	16 (23.2%)
tur (Turkey)	553	27 (4.9%)	35 (6.3%)	490 (88.6%)	1 (0.2%)	65	15 (23.1%)
grc (Greece)	123	25 (20.3%)	6 (4.9%)	92 (74.8%)	0 (0.0%)	8	1 (12.5%)
zaf (South Africa)	170	25 (14.7%)	7 (4.1%)	138 (81.2%)	0 (0.0%)	46	20 (43.5%)
idn (Indonesia)	33	21 (63.6%)	5 (15.2%)	7 (21.2%)	0 (0.0%)	18	10 (55.6%)
ita (Italy)	172	19 (11.0%)	17 (9.9%)	134 (77.9%)	2 (1.2%)	37	11 (29.7%)
jpn (Japan)	221	19 (8.6%)	47 (21.3%)	155 (70.1%)	0 (0.0%)	41	14 (34.1%)
vnm (Vietnam)	68	19 (27.9%)	10 (14.7%)	38 (55.9%)	1 (1.5%)	8	5 (62.5%)
chn (China)	429	18 (4.2%)	137 (31.9%)	274 (63.9%)	0 (0.0%)	28	5 (17.9%)
ven (Venezuela)	112	17 (15.2%)	14 (12.5%)	79 (70.5%)	2 (1.8%)	15	4 (26.7%)
mwi (Malawi)	46	16 (34.8%)	0 (0.0%)	29 (63.0%)	1 (2.2%)	4	2 (50.0%)
rou (Romania)	102	16 (15.7%)	29 (28.4%)	57 (55.9%)	0 (0.0%)	12	2 (16.7%)
ukr (Ukraine)	63	16 (25.4%)	26 (41.3%)	21 (33.3%)	0 (0.0%)	35	11 (31.4%)
can (Canada)	190	15 (7.9%)	32 (16.8%)	143 (75.3%)	0 (0.0%)	39	8 (20.5%)
gbr (United Kingdom)	352	15 (4.3%)	74 (21.0%)	260 (73.9%)	3 (0.9%)	82	13 (15.9%)
mex (Mexico)	288	14 (4.9%)	26 (9.0%)	248 (86.1%)	0 (0.0%)	32	5 (15.6%)
phl (Philippines)	94	14 (14.9%)	12 (12.8%)	68 (72.3%)	0 (0.0%)	22	7 (31.8%)
aus (Australia)	149	13 (8.7%)	31 (20.8%)	104 (69.8%)	1 (0.7%)	37	11 (29.7%)
hkg (Hong Kong)	50	12 (24.0%)	14 (28.0%)	23 (46.0%)	1 (2.0%)	20	9 (45.0%)
twn (Taiwan)	97	12 (12.4%)	6 (6.2%)	79 (81.4%)	0 (0.0%)	10	2 (20.0%)
ken (Kenya)	93	11 (11.8%)	6 (6.5%)	75 (80.6%)	1 (1.1%)	21	8 (38.1%)
dnk (Denmark)	30	10 (33.3%)	7 (23.3%)	13 (43.3%)	0 (0.0%)	10	3 (30.0%)
npl (Nepal)	62	9 (14.5%)	10 (16.1%)	42 (67.7%)	1 (1.6%)	10	6 (60.0%)
ecu (Ecuador)	48	8 (16.7%)	9 (18.8%)	31 (64.6%)	0 (0.0%)	13	5 (38.5%)
jor (Jordan)	16	8 (50.0%)	1 (6.3%)	7 (43.8%)	0 (0.0%)	3	2 (66.7%)
mus (Mauritius)	25	8 (32.0%)	0 (0.0%)	17 (68.0%)	0 (0.0%)	15	6 (40.0%)
deu (Germany)	371	7 (1.9%)	83 (22.4%)	280 (75.5%)	1 (0.3%)	56	8 (14.3%)
esp (Spain)	95	7 (7.4%)	12 (12.6%)	75 (78.9%)	1 (1.1%)	24	7 (29.2%)
pry (Paraguay)	30	7 (23.3%)	7 (23.3%)	16 (53.3%)	0 (0.0%)	8	5 (62.5%)
bol (Bolivia)	71	6 (8.5%)	7 (9.9%)	58 (81.7%)	0 (0.0%)	4	2 (50.0%)
col (Colombia)	69	6 (8.7%)	4 (5.8%)	59 (85.5%)	0 (0.0%)	12	4 (33.3%)
tha (Thailand)	231	6 (2.6%)	4 (1.7%)	220 (95.2%)	1 (0.4%)	13	4 (30.8%)
ury (Uruguay)	133	6 (4.5%)	10 (7.5%)	116 (87.2%)	1 (0.8%)	6	3 (50.0%)
are (United Arab Emirates)	38	4 (10.5%)	4 (10.5%)	29 (76.3%)	1 (2.6%)	6	3 (50.0%)
swe (Sweden)	45	4 (8.9%)	12 (26.7%)	29 (64.4%)	0 (0.0%)	20	3 (15.0%)
cze (Czech Republic)	19	3 (15.8%)	5 (26.3%)	11 (57.9%)	0 (0.0%)	13	2 (15.4%)
irn (Iran)	271	3 (1.1%)	18 (6.6%)	250 (92.3%)	0 (0.0%)	23	3 (13.0%)
mdv (Maldives)	7	3 (42.9%)	1 (14.3%)	3 (42.9%)	0 (0.0%)	2	1 (50.0%)
pol (Poland)	161	3 (1.9%)	12 (7.5%)	146 (90.7%)	0 (0.0%)	23	1 (4.3%)
srb (Serbia)	84	3 (3.6%)	1 (1.2%)	80 (95.2%)	0 (0.0%)	11	2 (18.2%)
abw (Aruba)	2	2 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
arg (Argentina)	60	2 (3.3%)	12 (20.0%)	46 (76.7%)	0 (0.0%)	17	2 (11.8%)
arm (Armenia)	21	2 (9.5%)	0 (0.0%)	19 (90.5%)	0 (0.0%)	7	2 (28.6%)
bhr (Bahrain)	23	2 (8.7%)	2 (8.7%)	19 (82.6%)	0 (0.0%)	4	2 (50.0%)
blr (Belarus)	37	2 (5.4%)	0 (0.0%)	35 (94.6%)	0 (0.0%)	7	1 (14.3%)
btn (Bhutan)	6	2 (33.3%)	2 (33.3%)	2 (33.3%)	0 (0.0%)	1	1 (100.0%)
dza (Algeria)	39	2 (5.1%)	0 (0.0%)	37 (94.9%)	0 (0.0%)	2	1 (50.0%)
fra (France)	121	2 (1.7%)	32 (26.4%)	87 (71.9%)	0 (0.0%)	18	2 (11.1%)
isr (Israel)	43	2 (4.7%)	6 (14.0%)	35 (81.4%)	0 (0.0%)	7	2 (28.6%)
mda (Moldova, Republic of)	5	2 (40.0%)	1 (20.0%)	2 (40.0%)	0 (0.0%)	3	1 (33.3%)
sgp (Singapore)	34	2 (5.9%)	12 (35.3%)	20 (58.8%)	0 (0.0%)	8	1 (12.5%)
ago (Angola)	85	1 (1.2%)	1 (1.2%)	83 (97.6%)	0 (0.0%)	7	1 (14.3%)
bel (Belgium)	35	1 (2.9%)	5 (14.3%)	29 (82.9%)	0 (0.0%)	9	1 (11.1%)
bgd (Bangladesh)	25	1 (4.0%)	2 (8.0%)	22 (88.0%)	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%)
cok (Cook Islands)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	1	1 (100.0%)
cri (Costa Rica)	7	1 (14.3%)	1 (14.3%)	5 (71.4%)	0 (0.0%)	4	1 (25.0%)
est (Estonia)	3	1 (33.3%)	0 (0.0%)	2 (66.7%)	0 (0.0%)	3	1 (33.3%)
eth (Ethiopia)	25	1 (4.0%)	0 (0.0%)	24 (96.0%)	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)	22	1 (4.5%)	7 (31.8%)	14 (63.6%)	0 (0.0%)	8	1 (12.5%)
imn (Isle of Man)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
irq (Iraq)	13	1 (7.7%)	0 (0.0%)	12 (92.3%)	0 (0.0%)	6	1 (16.7%)
isl (Iceland)	6	1 (16.7%)	1 (16.7%)	4 (66.7%)	0 (0.0%)	4	1 (25.0%)
lbn (Lebanon)	9	1 (11.1%)	1 (11.1%)	7 (77.8%)	0 (0.0%)	3	1 (33.3%)
mng (Mongolia)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
mys (Malaysia)	9	1 (11.1%)	4 (44.4%)	4 (44.4%)	0 (0.0%)	5	1 (20.0%)
nzl (New Zealand)	30	1 (3.3%)	5 (16.7%)	23 (76.7%)	1 (3.3%)	10	2 (20.0%)
pak (Pakistan)	52	1 (1.9%)	4 (7.7%)	47 (90.4%)	0 (0.0%)	8	1 (12.5%)
pan (Panama)	57	1 (1.8%)	8 (14.0%)	48 (84.2%)	0 (0.0%)	6	1 (16.7%)
pri (Puerto Rico)	11	1 (9.1%)	5 (45.5%)	5 (45.5%)	0 (0.0%)	3	1 (33.3%)
sau (Saudi Arabia)	213	1 (0.5%)	33 (15.5%)	179 (84.0%)	0 (0.0%)	7	1 (14.3%)
tgo (Togo)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
tza (Tanzania)	9	1 (11.1%)	1 (11.1%)	7 (77.8%)	0 (0.0%)	6	1 (16.7%)
alb (Albania)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
aut (Austria)	70	0 (0.0%)	13 (18.6%)	57 (81.4%)	0 (0.0%)	15	0 (0.0%)
aze (Azerbaijan)	27	0 (0.0%)	0 (0.0%)	27 (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)	41	0 (0.0%)	9 (22.0%)	32 (78.0%)	0 (0.0%)	19	0 (0.0%)
bih (Bosnia and Herzegovina)	2	0 (0.0%)	1 (50.0%)	1 (50.0%)	0 (0.0%)	2	0 (0.0%)
che (Switzerland)	72	0 (0.0%)	15 (20.8%)	57 (79.2%)	0 (0.0%)	17	0 (0.0%)
cmr (Cameroon)	3	0 (0.0%)	0 (0.0%)	3 (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)	9	0 (0.0%)	1 (11.1%)	8 (88.9%)	0 (0.0%)	2	0 (0.0%)
fin (Finland)	11	0 (0.0%)	8 (72.7%)	3 (27.3%)	0 (0.0%)	5	0 (0.0%)
fji (Fiji)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	0 (0.0%)
geo (Georgia)	14	0 (0.0%)	1 (7.1%)	13 (92.9%)	0 (0.0%)	3	0 (0.0%)
gha (Ghana)	29	0 (0.0%)	0 (0.0%)	29 (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)	5	0 (0.0%)	0 (0.0%)	5 (100.0%)	0 (0.0%)	2	0 (0.0%)
irl (Ireland)	40	0 (0.0%)	12 (30.0%)	28 (70.0%)	0 (0.0%)	13	0 (0.0%)
kaz (Kazakhstan)	37	0 (0.0%)	4 (10.8%)	33 (89.2%)	0 (0.0%)	11	0 (0.0%)
kgz (Kyrgyz Republic (Kyrgyzstan))	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	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)	72	0 (0.0%)	46 (63.9%)	26 (36.1%)	0 (0.0%)	5	0 (0.0%)
kwt (Kuwait)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
lao (Laos)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
lbr (Liberia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
lby (Libya)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
lie (Liechtenstein)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
ltu (Lithuania)	28	0 (0.0%)	3 (10.7%)	25 (89.3%)	0 (0.0%)	4	0 (0.0%)
lux (Luxembourg)	7	0 (0.0%)	5 (71.4%)	2 (28.6%)	0 (0.0%)	4	0 (0.0%)
lva (Latvia)	6	0 (0.0%)	2 (33.3%)	4 (66.7%)	0 (0.0%)	5	0 (0.0%)
mar (Morocco)	70	0 (0.0%)	1 (1.4%)	69 (98.6%)	0 (0.0%)	7	0 (0.0%)
mkd (Macedonia)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	3	0 (0.0%)
mmr (Myanmar)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	3	0 (0.0%)
moz (Mozambique)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
mrt (Mauritania)	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)	40	0 (0.0%)	4 (10.0%)	36 (90.0%)	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)	33	0 (0.0%)	7 (21.2%)	26 (78.8%)	0 (0.0%)	7	0 (0.0%)
omn (Oman)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	3	0 (0.0%)
per (Peru)	5	0 (0.0%)	0 (0.0%)	4 (80.0%)	1 (20.0%)	5	1 (20.0%)
prt (Portugal)	104	0 (0.0%)	24 (23.1%)	80 (76.9%)	0 (0.0%)	10	0 (0.0%)
pse (Palestinian Territory, Occupied)	11	0 (0.0%)	0 (0.0%)	11 (100.0%)	0 (0.0%)	1	0 (0.0%)
qat (Qatar)	5	0 (0.0%)	0 (0.0%)	5 (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)	6	0 (0.0%)	0 (0.0%)	6 (100.0%)	0 (0.0%)	3	0 (0.0%)
svk (Slovak Republic)	13	0 (0.0%)	2 (15.4%)	11 (84.6%)	0 (0.0%)	7	0 (0.0%)
svn (Slovenia)	12	0 (0.0%)	2 (16.7%)	10 (83.3%)	0 (0.0%)	4	0 (0.0%)
syc (Seychelles)	2	0 (0.0%)	1 (50.0%)	1 (50.0%)	0 (0.0%)	2	0 (0.0%)
syr (Syria)	19	0 (0.0%)	0 (0.0%)	19 (100.0%)	0 (0.0%)	1	0 (0.0%)
tcd (Chad)	9	0 (0.0%)	6 (66.7%)	3 (33.3%)	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%)
tto (Trinidad and Tobago)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
uga (Uganda)	10	0 (0.0%)	3 (30.0%)	7 (70.0%)	0 (0.0%)	3	0 (0.0%)
uzb (Uzbekistan)	9	0 (0.0%)	2 (22.2%)	7 (77.8%)	0 (0.0%)	5	0 (0.0%)