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)	2445	325 (13.3%)	496 (20.3%)	1604 (65.6%)	20 (0.8%)	549	196 (35.7%)
usa (United States)	1593	86 (5.4%)	489 (30.7%)	1015 (63.7%)	3 (0.2%)	330	64 (19.4%)
ind (India)	422	64 (15.2%)	36 (8.5%)	320 (75.8%)	2 (0.5%)	46	14 (30.4%)
rus (Russian Federation)	720	47 (6.5%)	56 (7.8%)	617 (85.7%)	0 (0.0%)	142	22 (15.5%)
egy (Egypt)	160	46 (28.8%)	0 (0.0%)	114 (71.3%)	0 (0.0%)	5	1 (20.0%)
nld (Netherlands)	340	31 (9.1%)	96 (28.2%)	211 (62.1%)	2 (0.6%)	90	20 (22.2%)
tun (Tunisia)	49	27 (55.1%)	0 (0.0%)	22 (44.9%)	0 (0.0%)	4	2 (50.0%)
tur (Turkey)	599	25 (4.2%)	64 (10.7%)	510 (85.1%)	0 (0.0%)	65	14 (21.5%)
pol (Poland)	456	24 (5.3%)	51 (11.2%)	380 (83.3%)	1 (0.2%)	133	19 (14.3%)
jpn (Japan)	242	20 (8.3%)	40 (16.5%)	182 (75.2%)	0 (0.0%)	49	12 (24.5%)
npl (Nepal)	59	19 (32.2%)	10 (16.9%)	30 (50.8%)	0 (0.0%)	16	9 (56.3%)
chn (China)	288	18 (6.3%)	52 (18.1%)	218 (75.7%)	0 (0.0%)	38	6 (15.8%)
rou (Romania)	113	18 (15.9%)	35 (31.0%)	60 (53.1%)	0 (0.0%)	20	7 (35.0%)
deu (Germany)	577	16 (2.8%)	173 (30.0%)	388 (67.2%)	0 (0.0%)	95	10 (10.5%)
vnm (Vietnam)	91	15 (16.5%)	16 (17.6%)	59 (64.8%)	1 (1.1%)	18	7 (38.9%)
grc (Greece)	91	14 (15.4%)	8 (8.8%)	69 (75.8%)	0 (0.0%)	6	1 (16.7%)
phl (Philippines)	169	14 (8.3%)	27 (16.0%)	128 (75.7%)	0 (0.0%)	30	12 (40.0%)
irn (Iran)	439	13 (3.0%)	67 (15.3%)	359 (81.8%)	0 (0.0%)	62	12 (19.4%)
isr (Israel)	70	13 (18.6%)	6 (8.6%)	51 (72.9%)	0 (0.0%)	11	4 (36.4%)
ken (Kenya)	78	13 (16.7%)	7 (9.0%)	58 (74.4%)	0 (0.0%)	22	8 (36.4%)
mwi (Malawi)	59	13 (22.0%)	4 (6.8%)	42 (71.2%)	0 (0.0%)	10	2 (20.0%)
zaf (South Africa)	142	13 (9.2%)	8 (5.6%)	121 (85.2%)	0 (0.0%)	27	7 (25.9%)
gbr (United Kingdom)	251	12 (4.8%)	71 (28.3%)	167 (66.5%)	1 (0.4%)	82	10 (12.2%)
can (Canada)	175	11 (6.3%)	44 (25.1%)	120 (68.6%)	0 (0.0%)	41	7 (17.1%)
hkg (Hong Kong)	85	11 (12.9%)	31 (36.5%)	42 (49.4%)	1 (1.2%)	32	10 (31.3%)
aus (Australia)	140	10 (7.1%)	35 (25.0%)	94 (67.1%)	1 (0.7%)	43	8 (18.6%)
esp (Spain)	109	10 (9.2%)	16 (14.7%)	83 (76.1%)	0 (0.0%)	29	8 (27.6%)
idn (Indonesia)	40	10 (25.0%)	6 (15.0%)	24 (60.0%)	0 (0.0%)	21	7 (33.3%)
dnk (Denmark)	28	9 (32.1%)	5 (17.9%)	14 (50.0%)	0 (0.0%)	11	5 (45.5%)
ecu (Ecuador)	78	9 (11.5%)	9 (11.5%)	59 (75.6%)	1 (1.3%)	19	8 (42.1%)
mus (Mauritius)	29	9 (31.0%)	2 (6.9%)	18 (62.1%)	0 (0.0%)	19	8 (42.1%)
tha (Thailand)	210	8 (3.8%)	6 (2.9%)	195 (92.9%)	1 (0.5%)	19	8 (42.1%)
ukr (Ukraine)	135	8 (5.9%)	23 (17.0%)	104 (77.0%)	0 (0.0%)	40	8 (20.0%)
ven (Venezuela)	127	8 (6.3%)	17 (13.4%)	99 (78.0%)	3 (2.4%)	14	6 (42.9%)
arg (Argentina)	66	6 (9.1%)	7 (10.6%)	53 (80.3%)	0 (0.0%)	21	4 (19.0%)
bol (Bolivia)	76	6 (7.9%)	9 (11.8%)	61 (80.3%)	0 (0.0%)	4	2 (50.0%)
jor (Jordan)	6	6 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
pry (Paraguay)	36	6 (16.7%)	5 (13.9%)	25 (69.4%)	0 (0.0%)	10	5 (50.0%)
bel (Belgium)	47	5 (10.6%)	11 (23.4%)	31 (66.0%)	0 (0.0%)	22	3 (13.6%)
btn (Bhutan)	26	5 (19.2%)	6 (23.1%)	15 (57.7%)	0 (0.0%)	8	2 (25.0%)
ita (Italy)	124	5 (4.0%)	23 (18.5%)	96 (77.4%)	0 (0.0%)	29	4 (13.8%)
mda (Moldova, Republic of)	15	5 (33.3%)	7 (46.7%)	3 (20.0%)	0 (0.0%)	6	2 (33.3%)
twn (Taiwan)	81	5 (6.2%)	13 (16.0%)	63 (77.8%)	0 (0.0%)	12	3 (25.0%)
col (Colombia)	58	4 (6.9%)	2 (3.4%)	52 (89.7%)	0 (0.0%)	15	1 (6.7%)
cze (Czech Republic)	31	4 (12.9%)	5 (16.1%)	22 (71.0%)	0 (0.0%)	17	3 (17.6%)
mex (Mexico)	181	4 (2.2%)	18 (9.9%)	158 (87.3%)	1 (0.6%)	27	3 (11.1%)
sau (Saudi Arabia)	219	4 (1.8%)	17 (7.8%)	198 (90.4%)	0 (0.0%)	11	4 (36.4%)
tza (Tanzania)	6	4 (66.7%)	0 (0.0%)	2 (33.3%)	0 (0.0%)	4	2 (50.0%)
uzb (Uzbekistan)	14	4 (28.6%)	0 (0.0%)	10 (71.4%)	0 (0.0%)	6	1 (16.7%)
are (United Arab Emirates)	81	3 (3.7%)	9 (11.1%)	68 (84.0%)	1 (1.2%)	8	4 (50.0%)
chl (Chile)	102	3 (2.9%)	14 (13.7%)	85 (83.3%)	0 (0.0%)	16	2 (12.5%)
est (Estonia)	6	3 (50.0%)	1 (16.7%)	2 (33.3%)	0 (0.0%)	4	2 (50.0%)
fra (France)	130	3 (2.3%)	44 (33.8%)	83 (63.8%)	0 (0.0%)	26	2 (7.7%)
kaz (Kazakhstan)	105	3 (2.9%)	5 (4.8%)	97 (92.4%)	0 (0.0%)	12	2 (16.7%)
mmr (Myanmar)	17	3 (17.6%)	0 (0.0%)	14 (82.4%)	0 (0.0%)	13	3 (23.1%)
ago (Angola)	86	2 (2.3%)	2 (2.3%)	82 (95.3%)	0 (0.0%)	11	2 (18.2%)
alb (Albania)	4	2 (50.0%)	0 (0.0%)	2 (50.0%)	0 (0.0%)	4	2 (50.0%)
bgd (Bangladesh)	37	2 (5.4%)	0 (0.0%)	35 (94.6%)	0 (0.0%)	22	2 (9.1%)
blr (Belarus)	56	2 (3.6%)	1 (1.8%)	53 (94.6%)	0 (0.0%)	6	1 (16.7%)
che (Switzerland)	77	2 (2.6%)	13 (16.9%)	61 (79.2%)	1 (1.3%)	19	2 (10.5%)
cri (Costa Rica)	15	2 (13.3%)	1 (6.7%)	12 (80.0%)	0 (0.0%)	9	1 (11.1%)
imn (Isle of Man)	2	2 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	2	2 (100.0%)
ltu (Lithuania)	17	2 (11.8%)	4 (23.5%)	11 (64.7%)	0 (0.0%)	7	1 (14.3%)
nzl (New Zealand)	19	2 (10.5%)	4 (21.1%)	13 (68.4%)	0 (0.0%)	11	2 (18.2%)
pan (Panama)	36	2 (5.6%)	6 (16.7%)	27 (75.0%)	1 (2.8%)	8	3 (37.5%)
pse (Palestinian Territory, Occupied)	59	2 (3.4%)	0 (0.0%)	57 (96.6%)	0 (0.0%)	2	2 (100.0%)
rwa (Rwanda)	13	2 (15.4%)	2 (15.4%)	9 (69.2%)	0 (0.0%)	5	2 (40.0%)
sgp (Singapore)	34	2 (5.9%)	12 (35.3%)	20 (58.8%)	0 (0.0%)	18	1 (5.6%)
srb (Serbia)	148	2 (1.4%)	1 (0.7%)	145 (98.0%)	0 (0.0%)	9	2 (22.2%)
swe (Sweden)	69	2 (2.9%)	14 (20.3%)	53 (76.8%)	0 (0.0%)	21	2 (9.5%)
uga (Uganda)	40	2 (5.0%)	4 (10.0%)	34 (85.0%)	0 (0.0%)	10	2 (20.0%)
abw (Aruba)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
afg (Afghanistan, Islamic State of)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
aut (Austria)	63	1 (1.6%)	13 (20.6%)	48 (76.2%)	1 (1.6%)	16	2 (12.5%)
bhr (Bahrain)	13	1 (7.7%)	1 (7.7%)	11 (84.6%)	0 (0.0%)	4	1 (25.0%)
blz (Belize)	6	1 (16.7%)	1 (16.7%)	4 (66.7%)	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))	8	1 (12.5%)	1 (12.5%)	6 (75.0%)	0 (0.0%)	2	1 (50.0%)
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)	75	1 (1.3%)	41 (54.7%)	33 (44.0%)	0 (0.0%)	11	1 (9.1%)
lbn (Lebanon)	12	1 (8.3%)	2 (16.7%)	9 (75.0%)	0 (0.0%)	6	1 (16.7%)
lbr (Liberia)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
lva (Latvia)	7	1 (14.3%)	5 (71.4%)	1 (14.3%)	0 (0.0%)	4	1 (25.0%)
pak (Pakistan)	30	1 (3.3%)	10 (33.3%)	18 (60.0%)	1 (3.3%)	11	2 (18.2%)
pri (Puerto Rico)	10	1 (10.0%)	2 (20.0%)	7 (70.0%)	0 (0.0%)	2	1 (50.0%)
smr (San Marino)	1	1 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1	1 (100.0%)
ury (Uruguay)	60	1 (1.7%)	13 (21.7%)	46 (76.7%)	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%)
arm (Armenia)	1	0 (0.0%)	0 (0.0%)	1 (100.0%)	0 (0.0%)	1	0 (0.0%)
aze (Azerbaijan)	32	0 (0.0%)	0 (0.0%)	32 (100.0%)	0 (0.0%)	4	0 (0.0%)
bgr (Bulgaria)	27	0 (0.0%)	11 (40.7%)	16 (59.3%)	0 (0.0%)	17	0 (0.0%)
bih (Bosnia and Herzegovina)	4	0 (0.0%)	0 (0.0%)	4 (100.0%)	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%)
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)	18	0 (0.0%)	0 (0.0%)	18 (100.0%)	0 (0.0%)	1	0 (0.0%)
eth (Ethiopia)	20	0 (0.0%)	0 (0.0%)	20 (100.0%)	0 (0.0%)	2	0 (0.0%)
fin (Finland)	39	0 (0.0%)	11 (28.2%)	28 (71.8%)	0 (0.0%)	9	0 (0.0%)
gab (Gabon)	1	0 (0.0%)	1 (100.0%)	0 (0.0%)	0 (0.0%)	1	0 (0.0%)
geo (Georgia)	16	0 (0.0%)	0 (0.0%)	16 (100.0%)	0 (0.0%)	4	0 (0.0%)
gha (Ghana)	77	0 (0.0%)	1 (1.3%)	76 (98.7%)	0 (0.0%)	3	0 (0.0%)
gtm (Guatemala)	3	0 (0.0%)	0 (0.0%)	3 (100.0%)	0 (0.0%)	2	0 (0.0%)
gum (Guam [US])	5	0 (0.0%)	0 (0.0%)	5 (100.0%)	0 (0.0%)	3	0 (0.0%)
hrv (Croatia)	3	0 (0.0%)	2 (66.7%)	1 (33.3%)	0 (0.0%)	2	0 (0.0%)
hun (Hungary)	15	0 (0.0%)	5 (33.3%)	10 (66.7%)	0 (0.0%)	5	0 (0.0%)
irl (Ireland)	46	0 (0.0%)	13 (28.3%)	33 (71.7%)	0 (0.0%)	18	0 (0.0%)
irq (Iraq)	8	0 (0.0%)	0 (0.0%)	8 (100.0%)	0 (0.0%)	4	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%)
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%)
mar (Morocco)	24	0 (0.0%)	0 (0.0%)	24 (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%)
mng (Mongolia)	2	0 (0.0%)	0 (0.0%)	2 (100.0%)	0 (0.0%)	2	0 (0.0%)
mys (Malaysia)	21	0 (0.0%)	3 (14.3%)	18 (85.7%)	0 (0.0%)	4	0 (0.0%)
nam (Namibia)	6	0 (0.0%)	1 (16.7%)	4 (66.7%)	1 (16.7%)	1	1 (100.0%)
nga (Nigeria)	15	0 (0.0%)	4 (26.7%)	11 (73.3%)	0 (0.0%)	6	0 (0.0%)
nor (Norway)	34	0 (0.0%)	5 (14.7%)	29 (85.3%)	0 (0.0%)	12	0 (0.0%)
omn (Oman)	12	0 (0.0%)	1 (8.3%)	11 (91.7%)	0 (0.0%)	3	0 (0.0%)
per (Peru)	29	0 (0.0%)	10 (34.5%)	17 (58.6%)	2 (6.9%)	8	2 (25.0%)
prt (Portugal)	75	0 (0.0%)	16 (21.3%)	59 (78.7%)	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)	9	0 (0.0%)	0 (0.0%)	9 (100.0%)	0 (0.0%)	2	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)	11	0 (0.0%)	0 (0.0%)	11 (100.0%)	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%)
tcd (Chad)	7	0 (0.0%)	6 (85.7%)	1 (14.3%)	0 (0.0%)	2	0 (0.0%)
tjk (Tajikistan)	2	0 (0.0%)	1 (50.0%)	1 (50.0%)	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%)