[lacnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora en apnic.net
Vie Oct 10 15:02:23 -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 11 Oct, 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: 1009133
Prefixes after maximum aggregation (per Origin AS): 391938
Deaggregation factor: 2.57
Unique aggregates announced (without unneeded subnets): 497192
Number of IPv4 prefixes with a valid ROA: 572562
Number of IPv4 prefixes with an invalid ROA: 1558
Number of IPv4 prefixes with no ROA: 434948
Total ASes present in the Internet Routing Table: 77422
Prefixes per ASN: 13.03
Origin-only ASes present in the Internet Routing Table: 66519
Origin ASes announcing only one prefix: 27083
Transit ASes present in the Internet Routing Table: 10903
Transit-only ASes present in the Internet Routing Table: 540
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 57
Max AS path prepend of ASN ( 37447) 53
Prefixes from unregistered ASNs in the Routing Table: 1016
Number of instances of unregistered ASNs: 1054
Number of 32-bit ASNs allocated by the RIRs: 47679
Number of 32-bit ASNs visible in the Routing Table: 39109
Prefixes from 32-bit ASNs in the Routing Table: 212945
Number of bogon 32-bit ASNs visible in the Routing Table: 104
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 453
Number of addresses announced to Internet: 3111947264
Equivalent to 185 /8s, 124 /16s and 140 /24s
Percentage of available address space announced: 84.1
Percentage of allocated address space announced: 84.1
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: 329017
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 270360
Total APNIC prefixes after maximum aggregation: 80505
APNIC Deaggregation factor: 3.36
Prefixes being announced from the APNIC address blocks: 260252
Unique aggregates announced from the APNIC address blocks: 105922
APNIC Region origin ASes present in the Internet Routing Table: 14850
APNIC Prefixes per ASN: 17.53
APNIC Region origin ASes announcing only one prefix: 4531
APNIC Region transit ASes present in the Internet Routing Table: 1953
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: 10392
Number of APNIC addresses announced to Internet: 752275584
Equivalent to 44 /8s, 214 /16s and 208 /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: 297245
Total ARIN prefixes after maximum aggregation: 134392
ARIN Deaggregation factor: 2.21
Prefixes being announced from the ARIN address blocks: 298046
Unique aggregates announced from the ARIN address blocks: 143867
ARIN Region origin ASes present in the Internet Routing Table: 19340
ARIN Prefixes per ASN: 15.41
ARIN Region origin ASes announcing only one prefix: 7093
ARIN Region transit ASes present in the Internet Routing Table: 1949
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5356
Number of ARIN addresses announced to Internet: 1352451072
Equivalent to 80 /8s, 156 /16s and 196 /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: 280582
Total RIPE prefixes after maximum aggregation: 138821
RIPE Deaggregation factor: 2.02
Prefixes being announced from the RIPE address blocks: 280121
Unique aggregates announced from the RIPE address blocks: 181062
RIPE Region origin ASes present in the Internet Routing Table: 29071
RIPE Prefixes per ASN: 9.64
RIPE Region origin ASes announcing only one prefix: 12091
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: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12752
Number of RIPE addresses announced to Internet: 732564096
Equivalent to 43 /8s, 170 /16s and 10 /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: 125048
Total LACNIC prefixes after maximum aggregation: 30672
LACNIC Deaggregation factor: 4.08
Prefixes being announced from the LACNIC address blocks: 121242
Unique aggregates announced from the LACNIC address blocks: 49345
LACNIC Region origin ASes present in the Internet Routing Table: 11311
LACNIC Prefixes per ASN: 10.72
LACNIC Region origin ASes announcing only one prefix: 2654
LACNIC Region transit ASes present in the Internet Routing Table: 2504
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 37
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9277
Number of LACNIC addresses announced to Internet: 170577408
Equivalent to 10 /8s, 42 /16s and 206 /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: 34882
Total AfriNIC prefixes after maximum aggregation: 6859
AfriNIC Deaggregation factor: 5.09
Prefixes being announced from the AfriNIC address blocks: 49019
Unique aggregates announced from the AfriNIC address blocks: 16594
AfriNIC Region origin ASes present in the Internet Routing Table: 1968
AfriNIC Prefixes per ASN: 24.91
AfriNIC Region origin ASes announcing only one prefix: 714
AfriNIC Region transit ASes present in the Internet Routing Table: 382
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 57
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1332
Number of AfriNIC addresses announced to Internet: 103835392
Equivalent to 6 /8s, 48 /16s and 103 /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 13798 8759 117 CHINAMOBILE-CN China Mobile Communication
7545 6185 835 604 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4956 4193 77 ERX-CERNET-BKB China Education and Resear
9498 4472 536 313 BBIL-AP BHARTI Airtel Ltd., IN
7552 3948 1332 28 VIETEL-AS-AP Viettel Group, VN
7713 3689 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3312 1869 100 VNPT-AS-VN VNPT Corp, VN
56046 3138 827 182 CMNET-JIANGSU-AP China Mobile communicati
24560 2930 863 500 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
9304 2474 512 1596 HUTCHISON-AS-AP HGC Global Communications
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 14309 40997 5362 AMAZON-02, US
11492 4756 321 791 CABLEONE, US
22773 4019 3068 361 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3859 286 85 VIASAT-SP-BACKBONE, US
6327 3684 1320 82 SHAW, CA
396982 3272 4824 464 GOOGLE-CLOUD-PLATFORM, US
749 3220 54766 2471 DNIC-AS-00749, US
174 3168 8767 804 COGENT-174, US
4155 3117 242 1743 USDA-1, US
16625 2875 1224 2156 AKAMAI-AS, 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 7400 1711 149 UNI2-AS, ES
39891 4833 298 66 ALJAWWALSTC-AS, SA
9009 3986 374 2246 M247, RO
20940 3897 3395 126 AKAMAI-ASN1, NL
12389 3148 2315 868 ROSTELECOM-AS PJSC Rostelecom. Technical
212238 2509 180 1822 CDNEXT, GB
34984 2415 363 576 TELLCOM-AS, TR
203020 2022 221 991 HOSTROYALE, IN
8452 1654 1852 14 TE-AS TE-AS, EG
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 12340 3253 591 UNINET, MX
10620 3477 468 1087 Telmex Colombia S.A., CO
13999 2515 508 351 Mega Cable, S.A. de C.V., MX
11830 1988 369 64 Instituto Costarricense de Electricidad y
28573 1369 2433 261 Claro NXT Telecomunicacoes Ltda, BR
3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1178 371 23 Telefonica del Peru S.A.A., PE
22884 1064 68 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
26615 1011 2486 56 TIM SA, BR
11172 907 148 66 Alestra, S. de R.L. de C.V., MX
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 1766 600 27 RAYA-AS, EG
36992 1512 1498 385 ETISALAT-MISR, EG
24863 1251 389 20 LINKdotNET-AS, EG
36903 1250 554 97 MT-MPLS, MA
29571 1189 102 52 ORANGE-COTE-IVOIRE, CI
37069 1085 1096 13 MOBINIL, EG
36935 958 523 47 Vodafone-, EG
20011 580 154 212 NTT-DATA-Inc, ZA
36914 574 82 3 KENET-AS, KE
15399 536 55 50 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 14309 40997 5362 AMAZON-02, US
9808 13798 8759 117 CHINAMOBILE-CN China Mobile Communication
8151 12340 3253 591 UNINET, MX
12479 7400 1711 149 UNI2-AS, ES
7545 6185 835 604 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4956 4193 77 ERX-CERNET-BKB China Education and Resear
39891 4833 298 66 ALJAWWALSTC-AS, SA
11492 4756 321 791 CABLEONE, US
9498 4472 536 313 BBIL-AP BHARTI Airtel Ltd., IN
22773 4019 3068 361 ASN-CXA-ALL-CCI-22773-RDC, 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 13798 13681 CHINAMOBILE-CN China Mobile Communications Grou
8151 12340 11749 UNINET, MX
12479 7400 7251 UNI2-AS, ES
7545 6185 5581 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4956 4879 ERX-CERNET-BKB China Education and Research Net
39891 4833 4767 ALJAWWALSTC-AS, SA
9498 4472 4159 BBIL-AP BHARTI Airtel Ltd., IN
11492 4756 3965 CABLEONE, US
7552 3948 3920 VIETEL-AS-AP Viettel Group, VN
7155 3859 3774 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
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
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 3356 LEVEL3, US
395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US
397015 UNALLOCATED 8.44.246.0/24 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
14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US
14.192.20.0/22 Transit: 21859 ZEN-ECN, US
23.135.216.0/24 Origin: 400565 RESERVED, ZZ
23.135.216.0/24 Transit: 3356 LEVEL3, US
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 /10:41 /11:93 /12:300
/13:582 /14:1198 /15:2123 /16:13804 /17:8281 /18:13547
/19:24893 /20:45198 /21:52400 /22:112964 /23:104261 /24:628633
/25:785 /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 6581 12340 UNINET, MX
12479 6365 7400 UNI2-AS, ES
11492 3569 4756 CABLEONE, US
39891 3521 4833 ALJAWWALSTC-AS, SA
6327 3472 3684 SHAW, CA
7155 2818 3859 VIASAT-SP-BACKBONE, US
22773 2523 4019 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2395 14309 AMAZON-02, US
30036 2299 2639 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2212 3477 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1786 2:1516 3:941 4:10 5:4794 6:170
7:6 8:1550 9:6 11:172 12:1242 13:565
14:2686 15:401 16:304 17:388 18:909 20:574
21:4 22:188 23:7896 24:2654 25:2 27:2735
29:19 31:3360 32:32 33:1 34:81 35:275
36:4453 37:4549 38:9471 39:1100 40:470 41:4367
42:944 43:2715 44:387 45:19140 46:5183 47:369
49:2078 50:2057 51:597 52:1592 54:359 55:1188
56:11 57:285 58:2205 59:1370 60:1190 61:2925
62:3087 63:1766 64:5675 65:2135 66:5071 67:3114
68:1214 69:4001 70:1048 71:630 72:2991 74:2836
75:1503 76:602 77:2775 78:1896 79:1754 80:2261
81:2129 82:3457 83:1473 84:1991 85:3531 86:1102
87:2389 88:1327 89:4511 90:807 91:8383 92:2811
93:2979 94:4174 95:4500 96:1474 97:312 98:948
99:753 100:71 101:1221 102:4137 103:32243 104:5459
105:777 106:895 107:2666 108:1218 109:4223 110:2252
111:3839 112:2667 113:1588 114:2067 115:2266 116:2075
117:3024 118:2536 119:2015 120:2311 121:1536 122:2826
123:2260 124:1729 125:2916 126:125 128:1583 129:969
130:1380 131:2151 132:792 133:462 134:1620 135:363
136:1489 137:1189 138:2822 139:1590 140:1696 141:1547
142:2109 143:2095 144:1262 145:628 146:2190 147:2132
148:2743 149:2926 150:1273 151:2608 152:2174 153:576
154:7890 155:2115 156:3295 157:1974 158:1432 159:2609
160:3608 161:1989 162:3952 163:2291 164:1951 165:2548
166:1570 167:2107 168:3841 169:779 170:5387 171:1023
172:4461 173:3418 174:908 175:1339 176:3812 177:4759
178:4292 179:2277 180:2703 181:4252 182:3747 183:2319
184:2063 185:21645 186:5384 187:4711 188:4376 189:4396
190:9680 191:1546 192:11409 193:9483 194:7798 195:5587
196:3299 197:3248 198:6234 199:8801 200:8209 201:6341
202:10673 203:10537 204:4622 205:3705 206:4437 207:3719
208:4281 209:5372 210:4953 211:2774 212:4844 213:3897
214:1037 215:52 216:6943 217:3356 218:1627 219:568
220:2189 221:1249 222:884 223:3063
End of report
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