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)	2456	333 (13.6%)	505 (20.6%)	1596 (65.0%)	22 (0.9%)	569	202 (35.5%)
usa (United States)	1661	95 (5.7%)	510 (30.7%)	1052 (63.3%)	4 (0.2%)	347	69 (19.9%)
ind (India)	451	64 (14.2%)	37 (8.2%)	349 (77.4%)	1 (0.2%)	43	13 (30.2%)
egy (Egypt)	196	56 (28.6%)	0 (0.0%)	140 (71.4%)	0 (0.0%)	5	1 (20.0%)
rus (Russian Federation)	703	43 (6.1%)	58 (8.3%)	602 (85.6%)	0 (0.0%)	139	20 (14.4%)
nld (Netherlands)	377	31 (8.2%)	101 (26.8%)	243 (64.5%)	2 (0.5%)	92	20 (21.7%)
tun (Tunisia)	48	29 (60.4%)	0 (0.0%)	19 (39.6%)	0 (0.0%)	3	2 (66.7%)
tur (Turkey)	584	25 (4.3%)	54 (9.2%)	505 (86.5%)	0 (0.0%)	59	13 (22.0%)
aus (Australia)	166	20 (12.0%)	45 (27.1%)	100 (60.2%)	1 (0.6%)	55	14 (25.5%)
pol (Poland)	373	19 (5.1%)	34 (9.1%)	319 (85.5%)	1 (0.3%)	114	16 (14.0%)
deu (Germany)	582	18 (3.1%)	167 (28.7%)	397 (68.2%)	0 (0.0%)	96	12 (12.5%)
npl (Nepal)	62	18 (29.0%)	11 (17.7%)	33 (53.2%)	0 (0.0%)	16	8 (50.0%)
chn (China)	291	17 (5.8%)	56 (19.2%)	218 (74.9%)	0 (0.0%)	40	5 (12.5%)
gbr (United Kingdom)	275	17 (6.2%)	81 (29.5%)	176 (64.0%)	1 (0.4%)	90	15 (16.7%)
rou (Romania)	116	17 (14.7%)	40 (34.5%)	59 (50.9%)	0 (0.0%)	21	7 (33.3%)
grc (Greece)	98	16 (16.3%)	8 (8.2%)	74 (75.5%)	0 (0.0%)	7	1 (14.3%)
zaf (South Africa)	145	16 (11.0%)	10 (6.9%)	119 (82.1%)	0 (0.0%)	28	8 (28.6%)
jpn (Japan)	243	15 (6.2%)	41 (16.9%)	187 (77.0%)	0 (0.0%)	42	9 (21.4%)
mwi (Malawi)	56	15 (26.8%)	3 (5.4%)	38 (67.9%)	0 (0.0%)	9	2 (22.2%)
vnm (Vietnam)	86	15 (17.4%)	15 (17.4%)	55 (64.0%)	1 (1.2%)	17	7 (41.2%)
ken (Kenya)	74	14 (18.9%)	4 (5.4%)	56 (75.7%)	0 (0.0%)	21	9 (42.9%)
phl (Philippines)	153	13 (8.5%)	22 (14.4%)	118 (77.1%)	0 (0.0%)	26	11 (42.3%)
ukr (Ukraine)	130	12 (9.2%)	24 (18.5%)	94 (72.3%)	0 (0.0%)	45	12 (26.7%)
hkg (Hong Kong)	92	11 (12.0%)	29 (31.5%)	51 (55.4%)	1 (1.1%)	30	8 (26.7%)
mus (Mauritius)	38	11 (28.9%)	4 (10.5%)	23 (60.5%)	0 (0.0%)	25	9 (36.0%)
can (Canada)	181	10 (5.5%)	48 (26.5%)	123 (68.0%)	0 (0.0%)	39	5 (12.8%)
idn (Indonesia)	35	10 (28.6%)	7 (20.0%)	18 (51.4%)	0 (0.0%)	19	7 (36.8%)
irn (Iran)	361	10 (2.8%)	66 (18.3%)	285 (78.9%)	0 (0.0%)	59	9 (15.3%)
isr (Israel)	59	10 (16.9%)	5 (8.5%)	44 (74.6%)	0 (0.0%)	10	5 (50.0%)
ecu (Ecuador)	80	9 (11.3%)	9 (11.3%)	61 (76.3%)	1 (1.3%)	19	8 (42.1%)
esp (Spain)	100	9 (9.0%)	15 (15.0%)	76 (76.0%)	0 (0.0%)	29	7 (24.1%)
tha (Thailand)	213	9 (4.2%)	7 (3.3%)	196 (92.0%)	1 (0.5%)	20	8 (40.0%)
chl (Chile)	110	8 (7.3%)	15 (13.6%)	87 (79.1%)	0 (0.0%)	17	2 (11.8%)
ita (Italy)	129	7 (5.4%)	19 (14.7%)	103 (79.8%)	0 (0.0%)	27	5 (18.5%)
arg (Argentina)	68	6 (8.8%)	7 (10.3%)	55 (80.9%)	0 (0.0%)	21	4 (19.0%)
bol (Bolivia)	77	6 (7.8%)	8 (10.4%)	63 (81.8%)	0 (0.0%)	4	2 (50.0%)
col (Colombia)	52	6 (11.5%)	1 (1.9%)	45 (86.5%)	0 (0.0%)	13	3 (23.1%)
dnk (Denmark)	27	6 (22.2%)	8 (29.6%)	13 (48.1%)	0 (0.0%)	11	4 (36.4%)
jor (Jordan)	9	6 (66.7%)	0 (0.0%)	3 (33.3%)	0 (0.0%)	2	1 (50.0%)
pry (Paraguay)	38	6 (15.8%)	5 (13.2%)	27 (71.1%)	0 (0.0%)	10	5 (50.0%)
twn (Taiwan)	82	6 (7.3%)	9 (11.0%)	67 (81.7%)	0 (0.0%)	10	3 (30.0%)
bel (Belgium)	45	5 (11.1%)	12 (26.7%)	28 (62.2%)	0 (0.0%)	22	3 (13.6%)
ven (Venezuela)	107	5 (4.7%)	17 (15.9%)	83 (77.6%)	2 (1.9%)	12	3 (25.0%)
cze (Czech Republic)	31	4 (12.9%)	6 (19.4%)	21 (67.7%)	0 (0.0%)	18	3 (16.7%)
sau (Saudi Arabia)	212	4 (1.9%)	17 (8.0%)	191 (90.1%)	0 (0.0%)	12	4 (33.3%)
uzb (Uzbekistan)	13	4 (30.8%)	0 (0.0%)	9 (69.2%)	0 (0.0%)	6	1 (16.7%)
che (Switzerland)	81	3 (3.7%)	12 (14.8%)	64 (79.0%)	2 (2.5%)	21	3 (14.3%)
mda (Moldova, Republic of)	8	3 (37.5%)	3 (37.5%)	2 (25.0%)	0 (0.0%)	5	2 (40.0%)
mmr (Myanmar)	14	3 (21.4%)	0 (0.0%)	11 (78.6%)	0 (0.0%)	11	3 (27.3%)
swe (Sweden)	70	3 (4.3%)	13 (18.6%)	54 (77.1%)	0 (0.0%)	19	2 (10.5%)
uga (Uganda)	35	3 (8.6%)	4 (11.4%)	28 (80.0%)	0 (0.0%)	9	3 (33.3%)
ago (Angola)	77	2 (2.6%)	2 (2.6%)	73 (94.8%)	0 (0.0%)	8	2 (25.0%)
are (United Arab Emirates)	75	2 (2.7%)	7 (9.3%)	65 (86.7%)	1 (1.3%)	6	3 (50.0%)
bgd (Bangladesh)	37	2 (5.4%)	0 (0.0%)	35 (94.6%)	0 (0.0%)	23	2 (8.7%)
blr (Belarus)	61	2 (3.3%)	1 (1.6%)	58 (95.1%)	0 (0.0%)	7	1 (14.3%)
cri (Costa Rica)	15	2 (13.3%)	1 (6.7%)	12 (80.0%)	0 (0.0%)	9	1 (11.1%)
fra (France)	123	2 (1.6%)	39 (31.7%)	82 (66.7%)	0 (0.0%)	21	2 (9.5%)
imn (Isle of Man)	2	2 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	2	2 (100.0%)
kaz (Kazakhstan)	94	2 (2.1%)	4 (4.3%)	88 (93.6%)	0 (0.0%)	10	1 (10.0%)
mex (Mexico)	183	2 (1.1%)	18 (9.8%)	162 (88.5%)	1 (0.5%)	29	3 (10.3%)
nzl (New Zealand)	21	2 (9.5%)	4 (19.0%)	15 (71.4%)	0 (0.0%)	11	2 (18.2%)
pan (Panama)	41	2 (4.9%)	7 (17.1%)	31 (75.6%)	1 (2.4%)	10	3 (30.0%)
rwa (Rwanda)	13	2 (15.4%)	2 (15.4%)	9 (69.2%)	0 (0.0%)	5	2 (40.0%)
sgp (Singapore)	33	2 (6.1%)	8 (24.2%)	23 (69.7%)	0 (0.0%)	18	1 (5.6%)
srb (Serbia)	151	2 (1.3%)	1 (0.7%)	148 (98.0%)	0 (0.0%)	10	2 (20.0%)
tza (Tanzania)	2	2 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	2	2 (100.0%)
abw (Aruba)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
alb (Albania)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
aut (Austria)	64	1 (1.6%)	14 (21.9%)	49 (76.6%)	0 (0.0%)	15	1 (6.7%)
bhr (Bahrain)	12	1 (8.3%)	1 (8.3%)	10 (83.3%)	0 (0.0%)	3	1 (33.3%)
blz (Belize)	7	1 (14.3%)	1 (14.3%)	5 (71.4%)	0 (0.0%)	1	1 (100.0%)
bwa (Botswana)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
civ (Ivory Coast (Cote D'Ivoire))	7	1 (14.3%)	0 (0.0%)	6 (85.7%)	0 (0.0%)	1	1 (100.0%)
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%)
dji (Djibouti)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
kor (South Korea)	65	1 (1.5%)	37 (56.9%)	27 (41.5%)	0 (0.0%)	8	1 (12.5%)
lbn (Lebanon)	12	1 (8.3%)	2 (16.7%)	9 (75.0%)	0 (0.0%)	6	1 (16.7%)
ltu (Lithuania)	14	1 (7.1%)	2 (14.3%)	11 (78.6%)	0 (0.0%)	6	1 (16.7%)
mng (Mongolia)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
mys (Malaysia)	21	1 (4.8%)	4 (19.0%)	16 (76.2%)	0 (0.0%)	5	1 (20.0%)
pak (Pakistan)	28	1 (3.6%)	8 (28.6%)	18 (64.3%)	1 (3.6%)	11	2 (18.2%)
per (Peru)	21	1 (4.8%)	7 (33.3%)	13 (61.9%)	0 (0.0%)	6	1 (16.7%)
pri (Puerto Rico)	10	1 (10.0%)	2 (20.0%)	7 (70.0%)	0 (0.0%)	2	1 (50.0%)
pse (Palestinian Territory, Occupied)	50	1 (2.0%)	0 (0.0%)	49 (98.0%)	0 (0.0%)	1	1 (100.0%)
ury (Uruguay)	55	1 (1.8%)	13 (23.6%)	41 (74.5%)	0 (0.0%)	6	1 (16.7%)
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%)
arm (Armenia)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
aze (Azerbaijan)	32	0 (0.0%)	0 (0.0%)	32 (100.0%)	0 (0.0%)	4	0 (0.0%)
bgr (Bulgaria)	30	0 (0.0%)	13 (43.3%)	17 (56.7%)	0 (0.0%)	19	0 (0.0%)
bih (Bosnia and Herzegovina)	5	0 (0.0%)	1 (20.0%)	4 (80.0%)	0 (0.0%)	2	0 (0.0%)
btn (Bhutan)	14	0 (0.0%)	3 (21.4%)	11 (78.6%)	0 (0.0%)	4	0 (0.0%)
cmr (Cameroon)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
cod (Congo, The Democratic Republic of the)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
cyp (Cyprus)	3	0 (0.0%)	1 (33.3%)	2 (66.7%)	0 (0.0%)	2	0 (0.0%)
dom (Dominican Republic)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	0 (0.0%)
dza (Algeria)	23	0 (0.0%)	1 (4.3%)	22 (95.7%)	0 (0.0%)	2	0 (0.0%)
est (Estonia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
eth (Ethiopia)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	2	0 (0.0%)
fin (Finland)	35	0 (0.0%)	9 (25.7%)	26 (74.3%)	0 (0.0%)	7	0 (0.0%)
geo (Georgia)	17	0 (0.0%)	1 (5.9%)	16 (94.1%)	0 (0.0%)	4	0 (0.0%)
gha (Ghana)	64	0 (0.0%)	0 (0.0%)	64 (100.0%)	0 (0.0%)	4	0 (0.0%)
gtm (Guatemala)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
hrv (Croatia)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
hun (Hungary)	17	0 (0.0%)	8 (47.1%)	9 (52.9%)	0 (0.0%)	7	0 (0.0%)
irl (Ireland)	39	0 (0.0%)	10 (25.6%)	29 (74.4%)	0 (0.0%)	16	0 (0.0%)
irq (Iraq)	8	0 (0.0%)	0 (0.0%)	8 (100.0%)	0 (0.0%)	4	0 (0.0%)
isl (Iceland)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
kgz (Kyrgyz Republic (Kyrgyzstan))	10	0 (0.0%)	0 (0.0%)	10 (100.0%)	0 (0.0%)	4	0 (0.0%)
khm (Cambodia, Kingdom of)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
kwt (Kuwait)	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%)
lka (Sri Lanka)	2	0 (0.0%)	1 (50.0%)	1 (50.0%)	0 (0.0%)	2	0 (0.0%)
lux (Luxembourg)	6	0 (0.0%)	5 (83.3%)	1 (16.7%)	0 (0.0%)	3	0 (0.0%)
lva (Latvia)	3	0 (0.0%)	2 (66.7%)	1 (33.3%)	0 (0.0%)	2	0 (0.0%)
mar (Morocco)	26	0 (0.0%)	0 (0.0%)	26 (100.0%)	0 (0.0%)	2	0 (0.0%)
mdv (Maldives)	6	0 (0.0%)	0 (0.0%)	6 (100.0%)	0 (0.0%)	2	0 (0.0%)
mnp (Northern Mariana Islands)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
nam (Namibia)	5	0 (0.0%)	1 (20.0%)	3 (60.0%)	1 (20.0%)	1	1 (100.0%)
nga (Nigeria)	19	0 (0.0%)	4 (21.1%)	15 (78.9%)	0 (0.0%)	6	0 (0.0%)
nor (Norway)	33	0 (0.0%)	5 (15.2%)	28 (84.8%)	0 (0.0%)	10	0 (0.0%)
omn (Oman)	11	0 (0.0%)	1 (9.1%)	10 (90.9%)	0 (0.0%)	3	0 (0.0%)
prt (Portugal)	77	0 (0.0%)	16 (20.8%)	61 (79.2%)	0 (0.0%)	9	0 (0.0%)
pyf (Polynesia [French])	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	2	0 (0.0%)
qat (Qatar)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
reu (Reunion [French])	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
sdn (Sudan)	6	0 (0.0%)	0 (0.0%)	6 (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)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	0 (0.0%)	3	0 (0.0%)
svn (Slovenia)	12	0 (0.0%)	0 (0.0%)	12 (100.0%)	0 (0.0%)	5	0 (0.0%)
syc (Seychelles)	2	0 (0.0%)	2 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
tcd (Chad)	7	0 (0.0%)	6 (85.7%)	1 (14.3%)	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%)