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)	2551	375 (14.7%)	507 (19.9%)	1652 (64.8%)	17 (0.7%)	594	227 (38.2%)
usa (United States)	1653	97 (5.9%)	498 (30.1%)	1055 (63.8%)	3 (0.2%)	321	64 (19.9%)
egy (Egypt)	321	91 (28.3%)	0 (0.0%)	230 (71.7%)	0 (0.0%)	5	1 (20.0%)
tun (Tunisia)	76	61 (80.3%)	0 (0.0%)	15 (19.7%)	0 (0.0%)	4	3 (75.0%)
ind (India)	434	57 (13.1%)	41 (9.4%)	335 (77.2%)	1 (0.2%)	42	12 (28.6%)
nld (Netherlands)	431	32 (7.4%)	113 (26.2%)	285 (66.1%)	1 (0.2%)	86	20 (23.3%)
rus (Russian Federation)	611	29 (4.7%)	49 (8.0%)	533 (87.2%)	0 (0.0%)	134	18 (13.4%)
chl (Chile)	162	27 (16.7%)	13 (8.0%)	122 (75.3%)	0 (0.0%)	17	2 (11.8%)
tur (Turkey)	598	23 (3.8%)	51 (8.5%)	523 (87.5%)	1 (0.2%)	62	13 (21.0%)
jpn (Japan)	227	21 (9.3%)	43 (18.9%)	163 (71.8%)	0 (0.0%)	43	14 (32.6%)
grc (Greece)	121	20 (16.5%)	8 (6.6%)	93 (76.9%)	0 (0.0%)	7	1 (14.3%)
zaf (South Africa)	155	20 (12.9%)	6 (3.9%)	129 (83.2%)	0 (0.0%)	34	12 (35.3%)
vnm (Vietnam)	75	18 (24.0%)	14 (18.7%)	42 (56.0%)	1 (1.3%)	12	4 (33.3%)
aus (Australia)	175	17 (9.7%)	39 (22.3%)	119 (68.0%)	0 (0.0%)	48	12 (25.0%)
rou (Romania)	110	17 (15.5%)	32 (29.1%)	61 (55.5%)	0 (0.0%)	18	3 (16.7%)
chn (China)	297	16 (5.4%)	56 (18.9%)	225 (75.8%)	0 (0.0%)	33	4 (12.1%)
npl (Nepal)	69	16 (23.2%)	9 (13.0%)	42 (60.9%)	2 (2.9%)	14	8 (57.1%)
gbr (United Kingdom)	324	15 (4.6%)	75 (23.1%)	231 (71.3%)	3 (0.9%)	85	14 (16.5%)
idn (Indonesia)	35	15 (42.9%)	6 (17.1%)	14 (40.0%)	0 (0.0%)	21	8 (38.1%)
ken (Kenya)	70	15 (21.4%)	5 (7.1%)	50 (71.4%)	0 (0.0%)	22	9 (40.9%)
mwi (Malawi)	55	15 (27.3%)	1 (1.8%)	38 (69.1%)	1 (1.8%)	9	3 (33.3%)
deu (Germany)	522	12 (2.3%)	145 (27.8%)	363 (69.5%)	2 (0.4%)	83	11 (13.3%)
ecu (Ecuador)	71	12 (16.9%)	10 (14.1%)	49 (69.0%)	0 (0.0%)	17	8 (47.1%)
hkg (Hong Kong)	61	12 (19.7%)	17 (27.9%)	31 (50.8%)	1 (1.6%)	24	9 (37.5%)
can (Canada)	168	11 (6.5%)	38 (22.6%)	119 (70.8%)	0 (0.0%)	36	5 (13.9%)
phl (Philippines)	152	11 (7.2%)	22 (14.5%)	119 (78.3%)	0 (0.0%)	27	7 (25.9%)
ven (Venezuela)	105	11 (10.5%)	14 (13.3%)	78 (74.3%)	2 (1.9%)	12	2 (16.7%)
ita (Italy)	151	9 (6.0%)	19 (12.6%)	122 (80.8%)	1 (0.7%)	29	6 (20.7%)
tha (Thailand)	216	9 (4.2%)	8 (3.7%)	198 (91.7%)	1 (0.5%)	17	7 (41.2%)
twn (Taiwan)	108	9 (8.3%)	10 (9.3%)	89 (82.4%)	0 (0.0%)	12	3 (25.0%)
ukr (Ukraine)	119	9 (7.6%)	24 (20.2%)	86 (72.3%)	0 (0.0%)	45	9 (20.0%)
mus (Mauritius)	34	8 (23.5%)	2 (5.9%)	24 (70.6%)	0 (0.0%)	18	7 (38.9%)
arg (Argentina)	72	7 (9.7%)	10 (13.9%)	55 (76.4%)	0 (0.0%)	22	5 (22.7%)
irn (Iran)	215	7 (3.3%)	62 (28.8%)	146 (67.9%)	0 (0.0%)	50	7 (14.0%)
jor (Jordan)	14	7 (50.0%)	0 (0.0%)	7 (50.0%)	0 (0.0%)	2	1 (50.0%)
dnk (Denmark)	23	6 (26.1%)	7 (30.4%)	10 (43.5%)	0 (0.0%)	8	4 (50.0%)
esp (Spain)	97	6 (6.2%)	16 (16.5%)	75 (77.3%)	0 (0.0%)	29	6 (20.7%)
pol (Poland)	181	6 (3.3%)	10 (5.5%)	165 (91.2%)	0 (0.0%)	27	1 (3.7%)
col (Colombia)	64	5 (7.8%)	2 (3.1%)	56 (87.5%)	1 (1.6%)	14	4 (28.6%)
isr (Israel)	38	5 (13.2%)	4 (10.5%)	29 (76.3%)	0 (0.0%)	10	3 (30.0%)
mex (Mexico)	225	5 (2.2%)	20 (8.9%)	199 (88.4%)	1 (0.4%)	31	4 (12.9%)
are (United Arab Emirates)	54	4 (7.4%)	6 (11.1%)	43 (79.6%)	1 (1.9%)	7	3 (42.9%)
bel (Belgium)	36	4 (11.1%)	9 (25.0%)	23 (63.9%)	0 (0.0%)	18	3 (16.7%)
bol (Bolivia)	73	4 (5.5%)	4 (5.5%)	65 (89.0%)	0 (0.0%)	4	2 (50.0%)
cze (Czech Republic)	24	4 (16.7%)	5 (20.8%)	15 (62.5%)	0 (0.0%)	16	3 (18.8%)
pry (Paraguay)	34	4 (11.8%)	5 (14.7%)	25 (73.5%)	0 (0.0%)	7	2 (28.6%)
swe (Sweden)	55	4 (7.3%)	15 (27.3%)	36 (65.5%)	0 (0.0%)	18	3 (16.7%)
cri (Costa Rica)	12	3 (25.0%)	1 (8.3%)	8 (66.7%)	0 (0.0%)	8	2 (25.0%)
mda (Moldova, Republic of)	8	3 (37.5%)	3 (37.5%)	2 (25.0%)	0 (0.0%)	5	2 (40.0%)
pan (Panama)	42	3 (7.1%)	7 (16.7%)	32 (76.2%)	0 (0.0%)	6	1 (16.7%)
sau (Saudi Arabia)	181	3 (1.7%)	21 (11.6%)	157 (86.7%)	0 (0.0%)	11	3 (27.3%)
srb (Serbia)	140	3 (2.1%)	1 (0.7%)	136 (97.1%)	0 (0.0%)	11	3 (27.3%)
ury (Uruguay)	51	3 (5.9%)	10 (19.6%)	38 (74.5%)	0 (0.0%)	7	2 (28.6%)
uzb (Uzbekistan)	10	3 (30.0%)	1 (10.0%)	6 (60.0%)	0 (0.0%)	5	1 (20.0%)
bgd (Bangladesh)	34	2 (5.9%)	1 (2.9%)	31 (91.2%)	0 (0.0%)	22	2 (9.1%)
bhr (Bahrain)	22	2 (9.1%)	3 (13.6%)	17 (77.3%)	0 (0.0%)	4	2 (50.0%)
blr (Belarus)	54	2 (3.7%)	1 (1.9%)	51 (94.4%)	0 (0.0%)	7	1 (14.3%)
btn (Bhutan)	7	2 (28.6%)	2 (28.6%)	3 (42.9%)	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%)
lbn (Lebanon)	14	2 (14.3%)	2 (14.3%)	10 (71.4%)	0 (0.0%)	7	2 (28.6%)
nzl (New Zealand)	27	2 (7.4%)	6 (22.2%)	18 (66.7%)	1 (3.7%)	11	2 (18.2%)
pak (Pakistan)	34	2 (5.9%)	8 (23.5%)	24 (70.6%)	0 (0.0%)	13	2 (15.4%)
sgp (Singapore)	38	2 (5.3%)	11 (28.9%)	25 (65.8%)	0 (0.0%)	13	1 (7.7%)
abw (Aruba)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
ago (Angola)	77	1 (1.3%)	0 (0.0%)	76 (98.7%)	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%)
arm (Armenia)	17	1 (5.9%)	0 (0.0%)	16 (94.1%)	0 (0.0%)	6	1 (16.7%)
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%)
che (Switzerland)	76	1 (1.3%)	12 (15.8%)	63 (82.9%)	0 (0.0%)	21	1 (4.8%)
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%)
dza (Algeria)	37	1 (2.7%)	0 (0.0%)	36 (97.3%)	0 (0.0%)	2	1 (50.0%)
hun (Hungary)	16	1 (6.3%)	7 (43.8%)	8 (50.0%)	0 (0.0%)	6	1 (16.7%)
kaz (Kazakhstan)	62	1 (1.6%)	4 (6.5%)	57 (91.9%)	0 (0.0%)	11	1 (9.1%)
kor (South Korea)	71	1 (1.4%)	38 (53.5%)	32 (45.1%)	0 (0.0%)	8	1 (12.5%)
ltu (Lithuania)	16	1 (6.3%)	2 (12.5%)	13 (81.3%)	0 (0.0%)	6	1 (16.7%)
mmr (Myanmar)	18	1 (5.6%)	0 (0.0%)	17 (94.4%)	0 (0.0%)	10	1 (10.0%)
mng (Mongolia)	2	1 (50.0%)	0 (0.0%)	1 (50.0%)	0 (0.0%)	2	1 (50.0%)
mys (Malaysia)	13	1 (7.7%)	4 (30.8%)	8 (61.5%)	0 (0.0%)	4	1 (25.0%)
nor (Norway)	32	1 (3.1%)	4 (12.5%)	27 (84.4%)	0 (0.0%)	11	1 (9.1%)
pri (Puerto Rico)	9	1 (11.1%)	2 (22.2%)	6 (66.7%)	0 (0.0%)	2	1 (50.0%)
tgo (Togo)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
uga (Uganda)	25	1 (4.0%)	4 (16.0%)	20 (80.0%)	0 (0.0%)	7	1 (14.3%)
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)	66	0 (0.0%)	12 (18.2%)	54 (81.8%)	0 (0.0%)	16	0 (0.0%)
aze (Azerbaijan)	29	0 (0.0%)	0 (0.0%)	29 (100.0%)	0 (0.0%)	2	0 (0.0%)
bgr (Bulgaria)	32	0 (0.0%)	13 (40.6%)	19 (59.4%)	0 (0.0%)	22	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)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
cub (Cuba)	2	0 (0.0%)	0 (0.0%)	2 (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%)
est (Estonia)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
eth (Ethiopia)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	2	0 (0.0%)
fin (Finland)	24	0 (0.0%)	9 (37.5%)	15 (62.5%)	0 (0.0%)	7	0 (0.0%)
fji (Fiji)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	0 (0.0%)
fra (France)	116	0 (0.0%)	31 (26.7%)	85 (73.3%)	0 (0.0%)	18	0 (0.0%)
geo (Georgia)	14	0 (0.0%)	0 (0.0%)	14 (100.0%)	0 (0.0%)	4	0 (0.0%)
gha (Ghana)	41	0 (0.0%)	0 (0.0%)	41 (100.0%)	0 (0.0%)	4	0 (0.0%)
gtm (Guatemala)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
irl (Ireland)	43	0 (0.0%)	12 (27.9%)	31 (72.1%)	0 (0.0%)	18	0 (0.0%)
irq (Iraq)	12	0 (0.0%)	0 (0.0%)	12 (100.0%)	0 (0.0%)	6	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%)
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%)
lka (Sri Lanka)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
lux (Luxembourg)	6	0 (0.0%)	5 (83.3%)	1 (16.7%)	0 (0.0%)	3	0 (0.0%)
lva (Latvia)	7	0 (0.0%)	4 (57.1%)	3 (42.9%)	0 (0.0%)	4	0 (0.0%)
mar (Morocco)	37	0 (0.0%)	0 (0.0%)	37 (100.0%)	0 (0.0%)	2	0 (0.0%)
mdv (Maldives)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	2	0 (0.0%)
mkd (Macedonia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	1	0 (0.0%)
nam (Namibia)	4	0 (0.0%)	1 (25.0%)	3 (75.0%)	0 (0.0%)	1	0 (0.0%)
nga (Nigeria)	26	0 (0.0%)	4 (15.4%)	22 (84.6%)	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%)
omn (Oman)	22	0 (0.0%)	1 (4.5%)	21 (95.5%)	0 (0.0%)	3	0 (0.0%)
per (Peru)	15	0 (0.0%)	4 (26.7%)	11 (73.3%)	0 (0.0%)	6	0 (0.0%)
prt (Portugal)	84	0 (0.0%)	16 (19.0%)	68 (81.0%)	0 (0.0%)	8	0 (0.0%)
pse (Palestinian Territory, Occupied)	21	0 (0.0%)	0 (0.0%)	21 (100.0%)	0 (0.0%)	1	0 (0.0%)
pyf (Polynesia [French])	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	1	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])	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	3	0 (0.0%)
rwa (Rwanda)	4	0 (0.0%)	2 (50.0%)	2 (50.0%)	0 (0.0%)	2	0 (0.0%)
sdn (Sudan)	5	0 (0.0%)	0 (0.0%)	5 (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)	7	0 (0.0%)	0 (0.0%)	7 (100.0%)	0 (0.0%)	4	0 (0.0%)
svn (Slovenia)	10	0 (0.0%)	1 (10.0%)	9 (90.0%)	0 (0.0%)	4	0 (0.0%)
syc (Seychelles)	2	0 (0.0%)	2 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
syr (Syria)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	1	0 (0.0%)
tcd (Chad)	7	0 (0.0%)	5 (71.4%)	2 (28.6%)	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%)
vgb (British Virgin Islands)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)