[lacnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora en apnic.net
Vie Dic 5 15:03:24 -03 2025
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 en lists.apnic.net.
For historical data, please see https://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.
IPv4 Routing Table Report 04:00 +10GMT Sat 06 Dec, 2025
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: 1019924
Prefixes after maximum aggregation (per Origin AS): 394232
Deaggregation factor: 2.59
Unique aggregates announced (without unneeded subnets): 504455
Number of IPv4 prefixes with a valid ROA: 593473
Number of IPv4 prefixes with an invalid ROA: 1542
Number of IPv4 prefixes with no ROA: 424909
Total ASes present in the Internet Routing Table: 77610
Prefixes per ASN: 13.14
Origin-only ASes present in the Internet Routing Table: 66677
Origin ASes announcing only one prefix: 27126
Transit ASes present in the Internet Routing Table: 10933
Transit-only ASes present in the Internet Routing Table: 541
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: 965
Number of instances of unregistered ASNs: 1004
Number of 32-bit ASNs allocated by the RIRs: 48158
Number of 32-bit ASNs visible in the Routing Table: 39423
Prefixes from 32-bit ASNs in the Routing Table: 217674
Number of bogon 32-bit ASNs visible in the Routing Table: 113
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 439
Number of addresses announced to Internet: 3101066752
Equivalent to 184 /8s, 214 /16s and 134 /24s
Percentage of available address space announced: 83.8
Percentage of allocated address space announced: 83.8
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: 333911
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 275935
Total APNIC prefixes after maximum aggregation: 81300
APNIC Deaggregation factor: 3.39
Prefixes being announced from the APNIC address blocks: 263483
Unique aggregates announced from the APNIC address blocks: 106295
APNIC Region origin ASes present in the Internet Routing Table: 14928
APNIC Prefixes per ASN: 17.65
APNIC Region origin ASes announcing only one prefix: 4555
APNIC Region transit ASes present in the Internet Routing Table: 1983
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 39
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10475
Number of APNIC addresses announced to Internet: 753543424
Equivalent to 44 /8s, 234 /16s and 41 /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: 299157
Total ARIN prefixes after maximum aggregation: 134685
ARIN Deaggregation factor: 2.22
Prefixes being announced from the ARIN address blocks: 298844
Unique aggregates announced from the ARIN address blocks: 145729
ARIN Region origin ASes present in the Internet Routing Table: 19388
ARIN Prefixes per ASN: 15.41
ARIN Region origin ASes announcing only one prefix: 7097
ARIN Region transit ASes present in the Internet Routing Table: 1940
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: 5426
Number of ARIN addresses announced to Internet: 1337569152
Equivalent to 79 /8s, 185 /16s and 175 /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: 282405
Total RIPE prefixes after maximum aggregation: 139883
RIPE Deaggregation factor: 2.02
Prefixes being announced from the RIPE address blocks: 283381
Unique aggregates announced from the RIPE address blocks: 183886
RIPE Region origin ASes present in the Internet Routing Table: 29112
RIPE Prefixes per ASN: 9.73
RIPE Region origin ASes announcing only one prefix: 12062
RIPE Region transit ASes present in the Internet Routing Table: 3950
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12853
Number of RIPE addresses announced to Internet: 735802752
Equivalent to 43 /8s, 219 /16s and 117 /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: 125940
Total LACNIC prefixes after maximum aggregation: 30804
LACNIC Deaggregation factor: 4.09
Prefixes being announced from the LACNIC address blocks: 121908
Unique aggregates announced from the LACNIC address blocks: 49699
LACNIC Region origin ASes present in the Internet Routing Table: 11324
LACNIC Prefixes per ASN: 10.77
LACNIC Region origin ASes announcing only one prefix: 2678
LACNIC Region transit ASes present in the Internet Routing Table: 2522
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: 9311
Number of LACNIC addresses announced to Internet: 170683904
Equivalent to 10 /8s, 44 /16s and 110 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + 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: 35522
Total AfriNIC prefixes after maximum aggregation: 6902
AfriNIC Deaggregation factor: 5.15
Prefixes being announced from the AfriNIC address blocks: 51869
Unique aggregates announced from the AfriNIC address blocks: 18465
AfriNIC Region origin ASes present in the Internet Routing Table: 1997
AfriNIC Prefixes per ASN: 25.97
AfriNIC Region origin ASes announcing only one prefix: 734
AfriNIC Region transit ASes present in the Internet Routing Table: 382
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 57
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1358
Number of AfriNIC addresses announced to Internet: 103303424
Equivalent to 6 /8s, 40 /16s and 73 /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 13362 8760 123 CHINAMOBILE-CN China Mobile Communication
7545 6048 835 593 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5010 4193 77 ERX-CERNET-BKB China Education and Resear
9498 4602 541 336 BBIL-AP BHARTI Airtel Ltd., IN
7552 4012 1332 28 VIETEL-AS-AP Viettel Group, VN
7713 3711 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones
56046 3339 827 183 CMNET-JIANGSU-AP China Mobile communicati
45899 3327 1869 100 VNPT-AS-VN VNPT Corp, VN
24560 2951 864 505 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
140292 2519 276 1939 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH
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 14280 37210 5402 AMAZON-02, US
22773 4780 3116 369 ASN-CXA-ALL-CCI-22773-RDC, US
11492 4715 313 913 CABLEONE, US
7155 3861 286 85 VIASAT-SP-BACKBONE, US
6327 3691 1320 83 SHAW, CA
396982 3312 4861 486 GOOGLE-CLOUD-PLATFORM, US
749 3208 54760 2459 DNIC-AS-00749, US
16625 2874 1231 2152 AKAMAI-AS, US
36352 2824 231 908 AS-COLOCROSSING, US
174 2703 8768 846 COGENT-174, 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 7282 1711 149 UNI2-AS, ES
39891 4833 298 66 ALJAWWALSTC-AS, SA
9009 4002 376 2294 M247, RO
20940 3862 3395 125 AKAMAI-ASN1, NL
12389 3175 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical
212238 2533 180 1833 CDNEXT, GB
34984 2423 363 576 TELLCOM-AS, TR
8452 1662 1852 14 TE-AS TE-AS, EG
203020 1612 241 784 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 12651 3291 583 UNINET, MX
10620 3458 463 1101 Telmex Colombia S.A., CO
13999 2508 509 352 Mega Cable, S.A. de C.V., MX
11830 1992 369 65 Instituto Costarricense de Electricidad y
28573 1373 2431 267 Claro NXT Telecomunicacoes Ltda, BR
3816 1344 777 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1263 371 22 Telefonica del Peru S.A.A., PE
22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
26615 1016 2486 56 TIM SA, BR
18881 901 1127 31 TELEFONICA BRASIL S.A, 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 1951 506 27 RAYA-AS, EG
36992 1681 1509 399 ETISALAT-MISR, EG
24863 1261 389 20 LINKdotNET-AS, EG
36903 1250 554 97 MT-MPLS, MA
37069 1093 1096 13 MOBINIL, EG
29571 1072 94 22 ORANGE-COTE-IVOIRE, CI
36935 1038 519 32 Vodafone-, EG
20011 580 154 212 NTT-DATA-Inc, ZA
36914 556 82 3 KENET-AS, KE
15399 539 56 51 WANANCHI-, 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 14280 37210 5402 AMAZON-02, US
9808 13362 8760 123 CHINAMOBILE-CN China Mobile Communication
8151 12651 3291 583 UNINET, MX
12479 7282 1711 149 UNI2-AS, ES
7545 6048 835 593 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5010 4193 77 ERX-CERNET-BKB China Education and Resear
39891 4833 298 66 ALJAWWALSTC-AS, SA
22773 4780 3116 369 ASN-CXA-ALL-CCI-22773-RDC, US
11492 4715 313 913 CABLEONE, US
9498 4602 541 336 BBIL-AP BHARTI Airtel Ltd., IN
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 13362 13239 CHINAMOBILE-CN China Mobile Communications Grou
8151 12651 12068 UNINET, MX
12479 7282 7133 UNI2-AS, ES
7545 6048 5455 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5010 4933 ERX-CERNET-BKB China Education and Research Net
39891 4833 4767 ALJAWWALSTC-AS, SA
22773 4780 4411 ASN-CXA-ALL-CCI-22773-RDC, US
9498 4602 4266 BBIL-AP BHARTI Airtel Ltd., IN
7552 4012 3984 VIETEL-AS-AP Viettel Group, VN
11492 4715 3802 CABLEONE, 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
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, 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
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
23.135.216.0/24 Origin: 400565 RESERVED, ZZ
23.135.216.0/24 Transit: 3356 LEVEL3, US
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
23.141.0.0/24 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 /10:41 /11:94 /12:298
/13:580 /14:1198 /15:2093 /16:13706 /17:8301 /18:13570
/19:25043 /20:45464 /21:52607 /22:113405 /23:105483 /24:637314
/25:697 /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 6852 12651 UNINET, MX
12479 6212 7282 UNI2-AS, ES
11492 3559 4715 CABLEONE, US
39891 3521 4833 ALJAWWALSTC-AS, SA
6327 3478 3691 SHAW, CA
22773 3053 4780 ASN-CXA-ALL-CCI-22773-RDC, US
7155 2820 3861 VIASAT-SP-BACKBONE, US
16509 2434 14280 AMAZON-02, US
30036 2318 2661 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2213 3458 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1805 2:1541 3:976 4:10 5:4884 6:190
7:6 8:1519 9:6 11:172 12:1230 13:571
14:2640 15:414 16:303 17:388 18:913 20:587
21:4 22:188 23:8092 24:2561 25:2 27:2733
29:19 31:3391 32:32 33:1 34:81 35:288
36:4599 37:4560 38:9377 39:1195 40:446 41:4437
42:949 43:2820 44:398 45:19496 46:5094 47:388
49:2162 50:2051 51:598 52:1567 54:289 55:1102
56:11 57:305 58:2213 59:1388 60:1167 61:3068
62:3098 63:1736 64:5958 65:2128 66:5913 67:3236
68:1499 69:4198 70:1032 71:621 72:3053 74:2934
75:1515 76:603 77:2775 78:1915 79:1784 80:2318
81:2103 82:3828 83:1460 84:2035 85:3649 86:1104
87:2322 88:1350 89:4582 90:838 91:8440 92:2849
93:3013 94:4237 95:4566 96:1448 97:314 98:951
99:773 100:68 101:1340 102:4330 103:32216 104:5525
105:772 106:913 107:2807 108:1212 109:4246 110:2312
111:3979 112:2796 113:1657 114:2101 115:2237 116:2157
117:3136 118:2498 119:2111 120:2409 121:1562 122:2957
123:2288 124:1674 125:2939 126:125 128:1593 129:968
130:1511 131:2261 132:771 133:462 134:1634 135:497
136:1503 137:1209 138:2909 139:1587 140:1779 141:1550
142:2348 143:2143 144:1354 145:627 146:2165 147:2139
148:2790 149:2884 150:1305 151:2617 152:2297 153:767
154:9199 155:2258 156:4251 157:2217 158:1474 159:2693
160:3654 161:1990 162:4007 163:2321 164:1962 165:2615
166:1313 167:2152 168:3888 169:799 170:5455 171:1114
172:4509 173:3428 174:914 175:1342 176:3781 177:4755
178:4299 179:2292 180:2853 181:4349 182:3837 183:2401
184:2060 185:21656 186:5517 187:4784 188:4436 189:4503
190:9707 191:1566 192:11449 193:9508 194:7859 195:5631
196:3298 197:3200 198:6225 199:6093 200:8219 201:6395
202:10674 203:10514 204:4643 205:3730 206:4402 207:3926
208:4267 209:5456 210:4977 211:2772 212:4904 213:4013
214:1027 215:53 216:7064 217:3391 218:1646 219:578
220:2195 221:1286 222:913 223:3213
End of report
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