[cmNOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Jan 16 18:03:22 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 17 Jan, 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: 1027408
Prefixes after maximum aggregation (per Origin AS): 395533
Deaggregation factor: 2.60
Unique aggregates announced (without unneeded subnets): 507103
Number of IPv4 prefixes with a valid ROA: 606326
Number of IPv4 prefixes with an invalid ROA: 1620
Number of IPv4 prefixes with no ROA: 419462
Total ASes present in the Internet Routing Table: 77778
Prefixes per ASN: 13.21
Origin-only ASes present in the Internet Routing Table: 66853
Origin ASes announcing only one prefix: 27183
Transit ASes present in the Internet Routing Table: 10925
Transit-only ASes present in the Internet Routing Table: 554
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 209
Max AS path prepend of ASN (214570) 200
Prefixes from unregistered ASNs in the Routing Table: 1008
Number of instances of unregistered ASNs: 1048
Number of 32-bit ASNs allocated by the RIRs: 48411
Number of 32-bit ASNs visible in the Routing Table: 39655
Prefixes from 32-bit ASNs in the Routing Table: 220359
Number of bogon 32-bit ASNs visible in the Routing Table: 111
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 480
Number of addresses announced to Internet: 3106815104
Equivalent to 185 /8s, 46 /16s and 60 /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: 335174
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 280325
Total APNIC prefixes after maximum aggregation: 82184
APNIC Deaggregation factor: 3.41
Prefixes being announced from the APNIC address blocks: 266966
Unique aggregates announced from the APNIC address blocks: 106793
APNIC Region origin ASes present in the Internet Routing Table: 15015
APNIC Prefixes per ASN: 17.78
APNIC Region origin ASes announcing only one prefix: 4597
APNIC Region transit ASes present in the Internet Routing Table: 1981
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 35
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10568
Number of APNIC addresses announced to Internet: 754743808
Equivalent to 44 /8s, 252 /16s and 122 /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: 301293
Total ARIN prefixes after maximum aggregation: 135129
ARIN Deaggregation factor: 2.23
Prefixes being announced from the ARIN address blocks: 301255
Unique aggregates announced from the ARIN address blocks: 146080
ARIN Region origin ASes present in the Internet Routing Table: 19393
ARIN Prefixes per ASN: 15.53
ARIN Region origin ASes announcing only one prefix: 7066
ARIN Region transit ASes present in the Internet Routing Table: 1923
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5446
Number of ARIN addresses announced to Internet: 1344401664
Equivalent to 80 /8s, 33 /16s and 241 /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, 393216-402332
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: 282507
Total RIPE prefixes after maximum aggregation: 139963
RIPE Deaggregation factor: 2.02
Prefixes being announced from the RIPE address blocks: 284173
Unique aggregates announced from the RIPE address blocks: 184586
RIPE Region origin ASes present in the Internet Routing Table: 29121
RIPE Prefixes per ASN: 9.76
RIPE Region origin ASes announcing only one prefix: 12096
RIPE Region transit ASes present in the Internet Routing Table: 3951
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 209
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12920
Number of RIPE addresses announced to Internet: 733572480
Equivalent to 43 /8s, 185 /16s and 109 /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: 125985
Total LACNIC prefixes after maximum aggregation: 30632
LACNIC Deaggregation factor: 4.11
Prefixes being announced from the LACNIC address blocks: 121805
Unique aggregates announced from the LACNIC address blocks: 49768
LACNIC Region origin ASes present in the Internet Routing Table: 11346
LACNIC Prefixes per ASN: 10.74
LACNIC Region origin ASes announcing only one prefix: 2678
LACNIC Region transit ASes present in the Internet Routing Table: 2517
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: 9344
Number of LACNIC addresses announced to Internet: 170560768
Equivalent to 10 /8s, 42 /16s and 141 /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: 36290
Total AfriNIC prefixes after maximum aggregation: 6936
AfriNIC Deaggregation factor: 5.23
Prefixes being announced from the AfriNIC address blocks: 52729
Unique aggregates announced from the AfriNIC address blocks: 19471
AfriNIC Region origin ASes present in the Internet Routing Table: 2011
AfriNIC Prefixes per ASN: 26.22
AfriNIC Region origin ASes announcing only one prefix: 746
AfriNIC Region transit ASes present in the Internet Routing Table: 383
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 42
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1377
Number of AfriNIC addresses announced to Internet: 103249408
Equivalent to 6 /8s, 39 /16s and 118 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & 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 13584 8945 102 CHINAMOBILE-CN China Mobile Communication
7545 6029 833 575 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5024 4193 77 ERX-CERNET-BKB China Education and Resear
9498 4695 543 340 BBIL-AP BHARTI Airtel Ltd., IN
7552 4052 1332 29 VIETEL-AS-AP Viettel Group, VN
7713 3731 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones
56046 3417 831 184 CMNET-JIANGSU-AP China Mobile communicati
45899 3332 1868 98 VNPT-AS-VN VNPT Corp, VN
24560 2965 865 502 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
17561 2804 176 556 LCS-AS-AP LARUS Limited, HK
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 14148 38738 5435 AMAZON-02, US
22773 4779 3116 367 ASN-CXA-ALL-CCI-22773-RDC, US
11492 4635 308 1031 CABLEONE, US
7155 3861 286 85 VIASAT-SP-BACKBONE, US
6327 3698 1321 70 SHAW, CA
396982 3324 4867 495 GOOGLE-CLOUD-PLATFORM, US
174 3213 8768 839 COGENT-174, US
749 3144 54729 2395 DNIC-AS-00749, US
16625 2820 1209 2120 AKAMAI-AS, US
36352 2703 222 889 AS-COLOCROSSING, US
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 7242 1711 149 UNI2-AS, ES
39891 4969 306 72 ALJAWWALSTC-AS, SA
9009 3907 365 2233 M247, RO
20940 3832 3393 111 AKAMAI-ASN1, NL
12389 3175 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical
212238 2567 182 1864 CDNEXT, GB
34984 2425 372 577 TELLCOM-AS, TR
8452 1713 1852 14 TE-AS TE-AS, EG
203020 1625 243 800 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 12669 3300 603 UNINET, MX
10620 3433 457 1107 Telmex Colombia S.A., CO
13999 2486 508 350 Mega Cable, S.A. de C.V., MX
11830 1991 369 65 Instituto Costarricense de Electricidad y
28573 1380 2432 268 Claro NXT Telecomunicacoes Ltda, BR
11664 1357 278 33 Techtel LMDS Comunicaciones Interactivas
3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1256 371 22 Telefonica del Peru S.A.A., PE
22884 1057 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
26615 1012 2486 56 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 1982 638 33 RAYA-AS, EG
36992 1850 1534 342 ETISALAT-MISR, EG
24863 1279 389 16 LINKdotNET-AS, EG
36903 1232 555 98 MT-MPLS, MA
36935 1146 524 47 Vodafone-, EG
37069 1101 1096 13 MOBINIL, EG
29571 1070 78 20 ORANGE-COTE-IVOIRE, CI
20011 580 154 212 NTT-DATA-Inc, ZA
36914 576 82 3 KENET-AS, KE
328608 572 49 166 Africa-on-Cloud-AS, ZA
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 14148 38738 5435 AMAZON-02, US
9808 13584 8945 102 CHINAMOBILE-CN China Mobile Communication
8151 12669 3300 603 UNINET, MX
12479 7242 1711 149 UNI2-AS, ES
7545 6029 833 575 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5024 4193 77 ERX-CERNET-BKB China Education and Resear
39891 4969 306 72 ALJAWWALSTC-AS, SA
22773 4779 3116 367 ASN-CXA-ALL-CCI-22773-RDC, US
9498 4695 543 340 BBIL-AP BHARTI Airtel Ltd., IN
11492 4635 308 1031 CABLEONE, 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 13584 13482 CHINAMOBILE-CN China Mobile Communications Grou
8151 12669 12066 UNINET, MX
12479 7242 7093 UNI2-AS, ES
7545 6029 5454 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5024 4947 ERX-CERNET-BKB China Education and Research Net
39891 4969 4897 ALJAWWALSTC-AS, SA
22773 4779 4412 ASN-CXA-ALL-CCI-22773-RDC, US
9498 4695 4355 BBIL-AP BHARTI Airtel Ltd., IN
7552 4052 4023 VIETEL-AS-AP Viettel Group, VN
7155 3861 3776 VIASAT-SP-BACKBONE, US
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
393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US
396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US
26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI
396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US
395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4, US
395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3, US
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, US
Complete listing at https://thyme.apnic.net/current/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.137.48.0/24 Origin: 16904 ARVIG-16904, 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
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA
23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US
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 /10:40 /11:93 /12:302
/13:580 /14:1199 /15:2091 /16:13723 /17:8314 /18:13577
/19:25083 /20:45600 /21:52658 /22:113780 /23:106304 /24:643339
/25:695 /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 6850 12669 UNINET, MX
12479 6173 7242 UNI2-AS, ES
39891 3655 4969 ALJAWWALSTC-AS, SA
11492 3497 4635 CABLEONE, US
6327 3479 3698 SHAW, CA
22773 3050 4779 ASN-CXA-ALL-CCI-22773-RDC, US
7155 2820 3861 VIASAT-SP-BACKBONE, US
16509 2496 14148 AMAZON-02, US
30036 2318 2660 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2213 3433 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1829 2:1497 3:978 4:9 5:4967 6:185
7:6 8:1521 9:14 11:172 12:1226 13:625
14:2677 15:419 16:275 17:390 18:917 20:595
21:4 22:188 23:8146 24:2626 25:2 27:2751
29:19 31:3413 32:32 34:81 35:293 36:4629
37:4523 38:9891 39:1248 40:439 41:4511 42:957
43:2921 44:414 45:19655 46:4934 47:397 49:2158
50:2059 51:599 52:1254 54:235 55:1115 56:11
57:311 58:2225 59:1424 60:1172 61:3098 62:3112
63:1771 64:6168 65:2141 66:6008 67:3259 68:1494
69:4218 70:1031 71:619 72:3066 74:2949 75:1514
76:609 77:2756 78:1938 79:1796 80:2307 81:2088
82:4014 83:1479 84:2025 85:3677 86:1096 87:2356
88:1355 89:4621 90:827 91:8408 92:2862 93:3010
94:4279 95:4527 96:1444 97:314 98:956 99:783
100:69 101:1510 102:4348 103:32368 104:5438 105:768
106:909 107:2824 108:1229 109:4229 110:2310 111:4115
112:3083 113:1698 114:2171 115:2238 116:2166 117:3285
118:2482 119:2110 120:2611 121:1571 122:2974 123:2305
124:1679 125:2978 126:125 128:1590 129:965 130:1558
131:2287 132:762 133:461 134:1629 135:534 136:1628
137:1291 138:2989 139:1600 140:1821 141:1562 142:2472
143:2138 144:1543 145:631 146:2201 147:2272 148:2816
149:2911 150:1314 151:2599 152:2256 153:846 154:9538
155:2270 156:4443 157:2235 158:1493 159:2744 160:3647
161:1998 162:4000 163:2329 164:1969 165:2641 166:1308
167:2193 168:3937 169:847 170:5444 171:1117 172:4548
173:3435 174:895 175:1346 176:3773 177:4731 178:4254
179:2294 180:2988 181:4359 182:3887 183:2532 184:2036
185:21686 186:5520 187:4816 188:4606 189:4488 190:9663
191:1534 192:11468 193:9497 194:7847 195:5696 196:3257
197:3205 198:6257 199:6129 200:8202 201:6381 202:10821
203:10541 204:4700 205:3759 206:4414 207:3973 208:4375
209:5502 210:4999 211:2782 212:4973 213:4046 214:1068
215:54 216:7141 217:3463 218:1675 219:591 220:2191
221:1311 222:1018 223:3276
End of report
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