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)	2645	393 (14.9%)	551 (20.8%)	1677 (63.4%)	24 (0.9%)	608	232 (38.2%)
egy (Egypt)	397	118 (29.7%)	0 (0.0%)	279 (70.3%)	0 (0.0%)	5	1 (20.0%)
usa (United States)	1650	102 (6.2%)	481 (29.2%)	1061 (64.3%)	6 (0.4%)	310	66 (21.3%)
tun (Tunisia)	98	70 (71.4%)	0 (0.0%)	28 (28.6%)	0 (0.0%)	5	4 (80.0%)
ind (India)	431	34 (7.9%)	39 (9.0%)	356 (82.6%)	2 (0.5%)	32	8 (25.0%)
nld (Netherlands)	447	33 (7.4%)	102 (22.8%)	312 (69.8%)	0 (0.0%)	70	18 (25.7%)
rus (Russian Federation)	482	32 (6.6%)	34 (7.1%)	416 (86.3%)	0 (0.0%)	115	15 (13.0%)
chl (Chile)	193	31 (16.1%)	11 (5.7%)	151 (78.2%)	0 (0.0%)	19	3 (15.8%)
grc (Greece)	116	20 (17.2%)	7 (6.0%)	89 (76.7%)	0 (0.0%)	6	1 (16.7%)
rou (Romania)	102	20 (19.6%)	27 (26.5%)	55 (53.9%)	0 (0.0%)	12	2 (16.7%)
tur (Turkey)	548	20 (3.6%)	33 (6.0%)	494 (90.1%)	1 (0.2%)	54	12 (22.2%)
zaf (South Africa)	157	20 (12.7%)	7 (4.5%)	130 (82.8%)	0 (0.0%)	40	14 (35.0%)
idn (Indonesia)	36	19 (52.8%)	5 (13.9%)	12 (33.3%)	0 (0.0%)	22	10 (45.5%)
chn (China)	388	18 (4.6%)	124 (32.0%)	246 (63.4%)	0 (0.0%)	29	5 (17.2%)
jpn (Japan)	222	18 (8.1%)	45 (20.3%)	159 (71.6%)	0 (0.0%)	39	13 (33.3%)
vnm (Vietnam)	61	18 (29.5%)	11 (18.0%)	31 (50.8%)	1 (1.6%)	8	4 (50.0%)
gbr (United Kingdom)	330	16 (4.8%)	65 (19.7%)	246 (74.5%)	3 (0.9%)	78	15 (19.2%)
ita (Italy)	161	16 (9.9%)	18 (11.2%)	125 (77.6%)	2 (1.2%)	32	9 (28.1%)
ken (Kenya)	77	16 (20.8%)	6 (7.8%)	55 (71.4%)	0 (0.0%)	22	8 (36.4%)
mwi (Malawi)	51	16 (31.4%)	0 (0.0%)	33 (64.7%)	2 (3.9%)	6	3 (50.0%)
ven (Venezuela)	108	15 (13.9%)	12 (11.1%)	78 (72.2%)	3 (2.8%)	14	2 (14.3%)
can (Canada)	179	14 (7.8%)	35 (19.6%)	130 (72.6%)	0 (0.0%)	41	7 (17.1%)
hkg (Hong Kong)	57	14 (24.6%)	15 (26.3%)	27 (47.4%)	1 (1.8%)	23	11 (47.8%)
aus (Australia)	151	13 (8.6%)	32 (21.2%)	105 (69.5%)	1 (0.7%)	39	10 (25.6%)
ecu (Ecuador)	60	13 (21.7%)	10 (16.7%)	37 (61.7%)	0 (0.0%)	16	8 (50.0%)
phl (Philippines)	117	13 (11.1%)	16 (13.7%)	88 (75.2%)	0 (0.0%)	23	8 (34.8%)
twn (Taiwan)	109	12 (11.0%)	11 (10.1%)	86 (78.9%)	0 (0.0%)	13	3 (23.1%)
mex (Mexico)	248	11 (4.4%)	25 (10.1%)	211 (85.1%)	1 (0.4%)	32	6 (18.8%)
ukr (Ukraine)	84	11 (13.1%)	25 (29.8%)	48 (57.1%)	0 (0.0%)	39	9 (23.1%)
dnk (Denmark)	33	10 (30.3%)	8 (24.2%)	15 (45.5%)	0 (0.0%)	11	4 (36.4%)
npl (Nepal)	65	10 (15.4%)	10 (15.4%)	43 (66.2%)	2 (3.1%)	10	7 (70.0%)
tha (Thailand)	227	10 (4.4%)	5 (2.2%)	212 (93.4%)	0 (0.0%)	16	6 (37.5%)
deu (Germany)	432	8 (1.9%)	93 (21.5%)	330 (76.4%)	1 (0.2%)	55	8 (14.5%)
esp (Spain)	96	7 (7.3%)	13 (13.5%)	75 (78.1%)	1 (1.0%)	23	7 (30.4%)
jor (Jordan)	14	7 (50.0%)	0 (0.0%)	7 (50.0%)	0 (0.0%)	2	1 (50.0%)
mus (Mauritius)	29	7 (24.1%)	1 (3.4%)	21 (72.4%)	0 (0.0%)	14	6 (42.9%)
col (Colombia)	71	6 (8.5%)	3 (4.2%)	62 (87.3%)	0 (0.0%)	14	4 (28.6%)
pol (Poland)	172	6 (3.5%)	14 (8.1%)	152 (88.4%)	0 (0.0%)	27	1 (3.7%)
ury (Uruguay)	59	6 (10.2%)	9 (15.3%)	44 (74.6%)	0 (0.0%)	7	3 (42.9%)
irn (Iran)	340	5 (1.5%)	56 (16.5%)	279 (82.1%)	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)	37	4 (10.8%)	4 (10.8%)	28 (75.7%)	1 (2.7%)	6	3 (50.0%)
bol (Bolivia)	66	4 (6.1%)	7 (10.6%)	55 (83.3%)	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)	50	4 (8.0%)	14 (28.0%)	32 (64.0%)	0 (0.0%)	20	3 (15.0%)
arg (Argentina)	66	3 (4.5%)	12 (18.2%)	51 (77.3%)	0 (0.0%)	19	2 (10.5%)
mdv (Maldives)	9	3 (33.3%)	1 (11.1%)	5 (55.6%)	0 (0.0%)	3	1 (33.3%)
srb (Serbia)	116	3 (2.6%)	1 (0.9%)	112 (96.6%)	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%)
bel (Belgium)	37	2 (5.4%)	7 (18.9%)	28 (75.7%)	0 (0.0%)	16	2 (12.5%)
bgd (Bangladesh)	27	2 (7.4%)	1 (3.7%)	24 (88.9%)	0 (0.0%)	17	2 (11.8%)
bhr (Bahrain)	25	2 (8.0%)	3 (12.0%)	20 (80.0%)	0 (0.0%)	4	2 (50.0%)
blr (Belarus)	41	2 (4.9%)	0 (0.0%)	39 (95.1%)	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%)	14	1 (7.1%)
dza (Algeria)	47	2 (4.3%)	0 (0.0%)	45 (95.7%)	0 (0.0%)	2	1 (50.0%)
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)	41	2 (4.9%)	4 (9.8%)	35 (85.4%)	0 (0.0%)	10	2 (20.0%)
pan (Panama)	54	2 (3.7%)	8 (14.8%)	44 (81.5%)	0 (0.0%)	7	1 (14.3%)
sau (Saudi Arabia)	170	2 (1.2%)	18 (10.6%)	150 (88.2%)	0 (0.0%)	7	2 (28.6%)
sgp (Singapore)	36	2 (5.6%)	12 (33.3%)	22 (61.1%)	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)	76	1 (1.3%)	1 (1.3%)	74 (97.4%)	0 (0.0%)	7	1 (14.3%)
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%)
cpv (Cape Verde)	3	1 (33.3%)	0 (0.0%)	2 (66.7%)	0 (0.0%)	1	1 (100.0%)
cri (Costa Rica)	9	1 (11.1%)	1 (11.1%)	7 (77.8%)	0 (0.0%)	6	1 (16.7%)
dji (Djibouti)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
est (Estonia)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
fra (France)	100	1 (1.0%)	27 (27.0%)	72 (72.0%)	0 (0.0%)	18	1 (5.6%)
gin (Guinea)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
hun (Hungary)	15	1 (6.7%)	6 (40.0%)	8 (53.3%)	0 (0.0%)	6	1 (16.7%)
irq (Iraq)	11	1 (9.1%)	0 (0.0%)	10 (90.9%)	0 (0.0%)	5	1 (20.0%)
kaz (Kazakhstan)	46	1 (2.2%)	2 (4.3%)	43 (93.5%)	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%)
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%)	5	1 (20.0%)
nzl (New Zealand)	23	1 (4.3%)	5 (21.7%)	16 (69.6%)	1 (4.3%)	9	2 (22.2%)
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%)
alb (Albania)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
aut (Austria)	60	0 (0.0%)	9 (15.0%)	51 (85.0%)	0 (0.0%)	15	0 (0.0%)
aze (Azerbaijan)	26	0 (0.0%)	0 (0.0%)	26 (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%)	9 (26.5%)	25 (73.5%)	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%)
che (Switzerland)	68	0 (0.0%)	12 (17.6%)	56 (82.4%)	0 (0.0%)	16	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%)
eth (Ethiopia)	16	0 (0.0%)	0 (0.0%)	16 (100.0%)	0 (0.0%)	2	0 (0.0%)
fin (Finland)	7	0 (0.0%)	6 (85.7%)	1 (14.3%)	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%)
geo (Georgia)	15	0 (0.0%)	0 (0.0%)	15 (100.0%)	0 (0.0%)	3	0 (0.0%)
gha (Ghana)	33	0 (0.0%)	0 (0.0%)	33 (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)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
irl (Ireland)	42	0 (0.0%)	13 (31.0%)	29 (69.0%)	0 (0.0%)	17	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))	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	2	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)	80	0 (0.0%)	49 (61.3%)	31 (38.8%)	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%)
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)	27	0 (0.0%)	2 (7.4%)	25 (92.6%)	0 (0.0%)	5	0 (0.0%)
lux (Luxembourg)	8	0 (0.0%)	6 (75.0%)	2 (25.0%)	0 (0.0%)	4	0 (0.0%)
lva (Latvia)	8	0 (0.0%)	3 (37.5%)	5 (62.5%)	0 (0.0%)	6	0 (0.0%)
mar (Morocco)	59	0 (0.0%)	1 (1.7%)	58 (98.3%)	0 (0.0%)	5	0 (0.0%)
mkd (Macedonia)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
mmr (Myanmar)	12	0 (0.0%)	0 (0.0%)	12 (100.0%)	0 (0.0%)	7	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)	37	0 (0.0%)	4 (10.8%)	33 (89.2%)	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)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	3	0 (0.0%)
per (Peru)	13	0 (0.0%)	4 (30.8%)	9 (69.2%)	0 (0.0%)	4	0 (0.0%)
prt (Portugal)	90	0 (0.0%)	21 (23.3%)	69 (76.7%)	0 (0.0%)	9	0 (0.0%)
pse (Palestinian Territory, Occupied)	9	0 (0.0%)	0 (0.0%)	9 (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)	9	0 (0.0%)	1 (11.1%)	8 (88.9%)	0 (0.0%)	4	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)	20	0 (0.0%)	4 (20.0%)	16 (80.0%)	0 (0.0%)	6	0 (0.0%)
uzb (Uzbekistan)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	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%)