[afnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri May 22 18:03:35 UTC 2026
This is an automated weekly mailing describing the state of the Global
IPv4 Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
UKNOF, TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.
Daily listings are sent to bgp-stats at lists.apnic.net.
For historical data, please see https://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
IPv4 Routing Table Report 04:00 +10GMT Sat 23 May, 2026
IPv4 BGP Table (Global) as seen at Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 1052331
Prefixes after maximum aggregation (per Origin AS): 402837
Deaggregation factor: 2.61
Unique aggregates announced (without unneeded subnets): 517459
Number of IPv4 prefixes with a valid ROA: 655376
Number of IPv4 prefixes with an invalid ROA: 1214
Number of IPv4 prefixes with no ROA: 395741
Total ASes present in the Internet Routing Table: 78478
Prefixes per ASN: 13.41
Origin-only ASes present in the Internet Routing Table: 67457
Origin ASes announcing only one prefix: 27448
Transit ASes present in the Internet Routing Table: 11021
Transit-only ASes present in the Internet Routing Table: 573
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 69
Max AS path prepend of ASN (269326) 61
Prefixes from unregistered ASNs in the Routing Table: 1161
Number of instances of unregistered ASNs: 1191
Number of 32-bit ASNs allocated by the RIRs: 49879
Number of 32-bit ASNs visible in the Routing Table: 40626
Prefixes from 32-bit ASNs in the Routing Table: 230516
Number of bogon 32-bit ASNs visible in the Routing Table: 94
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 434
Number of addresses announced to Internet: 3105143040
Equivalent to 185 /8s, 20 /16s and 185 /24s
Percentage of available address space announced: 83.9
Percentage of allocated address space announced: 83.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 343697
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 288587
Total APNIC prefixes after maximum aggregation: 83428
APNIC Deaggregation factor: 3.46
Prefixes being announced from the APNIC address blocks: 275057
Unique aggregates announced from the APNIC address blocks: 107695
APNIC Region origin ASes present in the Internet Routing Table: 15184
APNIC Prefixes per ASN: 18.11
APNIC Region origin ASes announcing only one prefix: 4645
APNIC Region transit ASes present in the Internet Routing Table: 2000
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 44
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10760
Number of APNIC addresses announced to Internet: 748644480
Equivalent to 44 /8s, 159 /16s and 104 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-155961
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 304645
Total ARIN prefixes after maximum aggregation: 137256
ARIN Deaggregation factor: 2.22
Prefixes being announced from the ARIN address blocks: 303407
Unique aggregates announced from the ARIN address blocks: 147836
ARIN Region origin ASes present in the Internet Routing Table: 19422
ARIN Prefixes per ASN: 15.62
ARIN Region origin ASes announcing only one prefix: 7101
ARIN Region transit ASes present in the Internet Routing Table: 1916
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5577
Number of ARIN addresses announced to Internet: 1348293888
Equivalent to 80 /8s, 93 /16s and 85 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-404380
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8,
67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8,
74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8,
100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8,
131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8,
139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8,
148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8,
159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8,
167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8,
184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8,
207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 290497
Total RIPE prefixes after maximum aggregation: 143553
RIPE Deaggregation factor: 2.02
Prefixes being announced from the RIPE address blocks: 293944
Unique aggregates announced from the RIPE address blocks: 191707
RIPE Region origin ASes present in the Internet Routing Table: 29512
RIPE Prefixes per ASN: 9.96
RIPE Region origin ASes announcing only one prefix: 12240
RIPE Region transit ASes present in the Internet Routing Table: 3995
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 13444
Number of RIPE addresses announced to Internet: 733990016
Equivalent to 43 /8s, 191 /16s and 204 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8,
81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8,
88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8,
95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8,
185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 130053
Total LACNIC prefixes after maximum aggregation: 30880
LACNIC Deaggregation factor: 4.21
Prefixes being announced from the LACNIC address blocks: 124502
Unique aggregates announced from the LACNIC address blocks: 50320
LACNIC Region origin ASes present in the Internet Routing Table: 11407
LACNIC Prefixes per ASN: 10.91
LACNIC Region origin ASes announcing only one prefix: 2727
LACNIC Region transit ASes present in the Internet Routing Table: 2567
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 69
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9449
Number of LACNIC addresses announced to Internet: 169766144
Equivalent to 10 /8s, 30 /16s and 109 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-275868 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 37388
Total AfriNIC prefixes after maximum aggregation: 7047
AfriNIC Deaggregation factor: 5.31
Prefixes being announced from the AfriNIC address blocks: 54987
Unique aggregates announced from the AfriNIC address blocks: 19526
AfriNIC Region origin ASes present in the Internet Routing Table: 2033
AfriNIC Prefixes per ASN: 27.05
AfriNIC Region origin ASes announcing only one prefix: 735
AfriNIC Region transit ASes present in the Internet Routing Table: 386
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 53
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1396
Number of AfriNIC addresses announced to Internet: 104251136
Equivalent to 6 /8s, 54 /16s and 191 /24s
AfriNIC AS Blocks 36864-37887, 327680-330751 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
9808 13997 8946 106 CHINAMOBILE-CN China Mobile Communication
7545 5877 825 477 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4997 4192 74 ERX-CERNET-BKB China Education and Resear
9498 4939 551 322 BBIL-AP BHARTI Airtel Ltd., IN
18403 4535 347 25 FPT-AP FPT Telecom Company, VN
7552 4035 1331 26 VIETEL-AS-AP Viettel Group, VN
7713 3726 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones
56046 3542 887 178 CMNET-JIANGSU-AP China Mobile communicati
17561 3458 217 613 LCS-AS-AP LARUS Limited, HK
45899 3386 1868 100 VNPT-AS-VN VNPT Corp, VN
Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 15032 41426 5719 AMAZON-02 - Amazon.com, Inc., US
22773 4764 3115 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica
11492 4593 305 1087 CABLEONE - CABLE ONE, INC., US
7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US
6327 3718 1305 75 SHAW - Shaw Communications, CA
396982 3350 4865 505 GOOGLE-CLOUD-PLATFORM - Google LLC, US
749 3138 54728 2389 DNIC-AS-00749 - United States Department
36352 2991 227 978 AS-COLOCROSSING - HostPapa, US
7029 2633 2556 888 WINDSTREAM - Windstream Communications LL
30036 2580 357 532 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C
Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
12479 7133 1711 149 UNI2-AS, ES
39891 4975 307 72 ALJAWWALSTC-AS, SA
9009 4078 372 2474 M247, RO
20940 3796 3389 109 AKAMAI-ASN1, NL
12389 3154 2319 870 ROSTELECOM-AS PJSC Rostelecom. Technical
212238 2799 206 2066 CDNEXT, GB
34984 2489 367 583 TELLCOM-AS, TR
8452 1721 1852 17 TE-AS TE-AS, EG
203020 1659 252 829 HOSTROYALE, IN
13188 1607 100 27 TRIOLAN, UA
Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 12751 3254 631 UNINET, MX
10620 3432 450 1101 Telmex Colombia S.A., CO
13999 2354 500 357 Mega Cable, S.A. de C.V., MX
11830 1935 369 65 Instituto Costarricense de Electricidad y
11664 1471 277 34 Techtel LMDS Comunicaciones Interactivas
28573 1364 2431 268 Claro NXT Telecomunicacoes Ltda, BR
3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1225 371 22 INTEGRATEL PERU S.A.A., PE
22884 1076 70 363 TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. D
26615 1073 2392 100 TIM SA, BR
Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24835 2028 649 36 RAYA-AS, EG
36992 1860 1532 337 ETISALAT-MISR, EG
36935 1275 521 43 Vodafone-, EG
24863 1259 389 16 LINKdotNET-AS, EG
36903 1232 555 98 MT-MPLS, MA
37069 1117 1100 11 MOBINIL, EG
29571 1086 70 18 ORANGE-COTE-IVOIRE, CI
328608 628 57 176 Africa-on-Cloud-AS, ZA
20011 589 155 220 NTT-DATA-Inc, ZA
36914 563 82 3 KENET-AS, KE
Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 15032 41426 5719 AMAZON-02 - Amazon.com, Inc., US
9808 13997 8946 106 CHINAMOBILE-CN China Mobile Communication
8151 12751 3254 631 UNINET, MX
12479 7133 1711 149 UNI2-AS, ES
7545 5877 825 477 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4997 4192 74 ERX-CERNET-BKB China Education and Resear
39891 4975 307 72 ALJAWWALSTC-AS, SA
9498 4939 551 322 BBIL-AP BHARTI Airtel Ltd., IN
22773 4764 3115 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica
11492 4593 305 1087 CABLEONE - CABLE ONE, INC., US
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 13997 13891 CHINAMOBILE-CN China Mobile Communications Grou
8151 12751 12120 UNINET, MX
12479 7133 6984 UNI2-AS, ES
7545 5877 5400 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4997 4923 ERX-CERNET-BKB China Education and Research Net
39891 4975 4903 ALJAWWALSTC-AS, SA
9498 4939 4617 BBIL-AP BHARTI Airtel Ltd., IN
18403 4535 4510 FPT-AP FPT Telecom Company, VN
22773 4764 4399 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
7552 4035 4009 VIETEL-AS-AP Viettel Group, VN
Complete listing at https://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
46198 UNALLOCATED 8.10.6.0/24 23520 LIBERTY-NETWORKS - Colu
46198 UNALLOCATED 8.10.7.0/24 23520 LIBERTY-NETWORKS - Colu
395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D
395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D
396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos
395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent
400273 UNALLOCATED 8.41.137.0/24 3356 LEVEL3 - Level 3 Parent
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent
13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com
Complete listing at https://thyme.apnic.net/current/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE - Hurricane Electric LLC, US
Complete listing at https://thyme.apnic.net/current/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.131.100.0/24 Origin: 401541 OSIE - Osie, ZZ
23.131.100.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure
23.131.156.0/24 Origin: 401541 OSIE - Osie, ZZ
23.131.156.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure
23.131.212.0/24 Origin: 401541 OSIE - Osie, ZZ
23.131.212.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure
23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US
23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US
23.137.200.0/24 Origin: 16276 OVH, FR
23.137.200.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
Complete listing at https://thyme.apnic.net/current/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:14 /10:39 /11:95 /12:298
/13:581 /14:1185 /15:2106 /16:13631 /17:8361 /18:13423
/19:25713 /20:46980 /21:52935 /22:113902 /23:108938 /24:663420
/25:694 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 6972 12751 UNINET, MX
12479 6069 7133 UNI2-AS, ES
39891 3660 4975 ALJAWWALSTC-AS, SA
6327 3498 3718 SHAW - Shaw Communications, CA
11492 3469 4593 CABLEONE - CABLE ONE, INC., US
22773 3063 4764 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US
16509 2721 15032 AMAZON-02 - Amazon.com, Inc., US
10620 2236 3432 Telmex Colombia S.A., CO
30036 2235 2580 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2550 2:2043 3:1000 4:5 5:5110 6:201
7:6 8:1497 9:63 11:172 12:1134 13:712
14:2755 15:467 16:215 17:443 18:919 20:594
21:4 22:188 23:8361 24:2780 25:2 27:2747
28:1 29:19 31:3591 32:37 34:87 35:288
36:4796 37:4437 38:9745 39:1309 40:413 41:4565
42:2177 43:3142 44:453 45:19773 46:4893 47:417
48:151 49:2246 50:2030 51:816 52:1330 54:287
55:1108 56:11 57:327 58:2422 59:1427 60:1176
61:3171 62:3143 63:1681 64:6388 65:2151 66:6141
67:3275 68:1517 69:4228 70:1061 71:611 72:3188
74:3078 75:1502 76:602 77:2942 78:2045 79:1794
80:2344 81:2271 82:4167 83:1457 84:2166 85:3854
86:1096 87:2716 88:1321 89:4778 90:794 91:8467
92:2769 93:3026 94:4405 95:4698 96:1445 97:309
98:949 99:841 100:70 101:1369 102:4628 103:32314
104:5428 105:844 106:920 107:2952 108:1293 109:4273
110:2284 111:4187 112:3167 113:2012 114:2538 115:2242
116:2073 117:3589 118:2982 119:2109 120:2766 121:1598
122:3017 123:2280 124:1731 125:3035 126:158 128:1580
129:975 130:1682 131:2433 132:887 133:502 134:1728
135:611 136:1463 137:1434 138:3409 139:1704 140:1902
141:1771 142:2528 143:2053 144:1775 145:635 146:2188
147:2243 148:2791 149:3170 150:1379 151:2922 152:2355
153:1635 154:9631 155:2276 156:5141 157:2428 158:1580
159:2869 160:3842 161:1987 162:4109 163:2587 164:2428
165:2673 166:1255 167:2342 168:4088 169:868 170:5592
171:1131 172:4780 173:3459 174:888 175:1358 176:3938
177:5037 178:4411 179:2380 180:3073 181:4597 182:4026
183:2835 184:2017 185:21841 186:6189 187:5056 188:4522
189:4531 190:9913 191:2004 192:11538 193:9622 194:7864
195:5840 196:3406 197:3241 198:6295 199:6084 200:8308
201:6427 202:10807 203:10523 204:4802 205:3763 206:4446
207:4013 208:4376 209:5512 210:4905 211:2782 212:5086
213:4104 214:1038 215:47 216:7314 217:3616 218:1854
219:583 220:2225 221:1319 222:1084 223:3467
End of report
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