[lacnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora en apnic.net
Vie Ene 31 15:02:25 -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 01 Feb, 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: 975207
Prefixes after maximum aggregation (per Origin AS): 372656
Deaggregation factor: 2.62
Unique aggregates announced (without unneeded subnets): 473776
Number of IPv4 prefixes with a valid ROA: 522047
Number of IPv4 prefixes with an invalid ROA: 1285
Number of IPv4 prefixes with no ROA: 451875
Total ASes present in the Internet Routing Table: 76573
Prefixes per ASN: 12.74
Origin-only ASes present in the Internet Routing Table: 65549
Origin ASes announcing only one prefix: 26841
Transit ASes present in the Internet Routing Table: 11024
Transit-only ASes present in the Internet Routing Table: 530
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 65
Max AS path prepend of ASN ( 37447) 57
Prefixes from unregistered ASNs in the Routing Table: 1072
Number of instances of unregistered ASNs: 1090
Number of 32-bit ASNs allocated by the RIRs: 46094
Number of 32-bit ASNs visible in the Routing Table: 37728
Prefixes from 32-bit ASNs in the Routing Table: 198812
Number of bogon 32-bit ASNs visible in the Routing Table: 53
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 505
Number of addresses announced to Internet: 3113800064
Equivalent to 185 /8s, 152 /16s and 209 /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: 319332
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 256562
Total APNIC prefixes after maximum aggregation: 76916
APNIC Deaggregation factor: 3.34
Prefixes being announced from the APNIC address blocks: 248144
Unique aggregates announced from the APNIC address blocks: 102629
APNIC Region origin ASes present in the Internet Routing Table: 14488
APNIC Prefixes per ASN: 17.13
APNIC Region origin ASes announcing only one prefix: 4419
APNIC Region transit ASes present in the Internet Routing Table: 1944
Average APNIC Region AS path length visible: 5.5
Max APNIC Region AS path length visible: 39
Number of APNIC region 32-bit ASNs visible in the Routing Table: 9967
Number of APNIC addresses announced to Internet: 753942528
Equivalent to 44 /8s, 240 /16s and 64 /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, 131072-153913
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: 287531
Total ARIN prefixes after maximum aggregation: 127460
ARIN Deaggregation factor: 2.26
Prefixes being announced from the ARIN address blocks: 289274
Unique aggregates announced from the ARIN address blocks: 135040
ARIN Region origin ASes present in the Internet Routing Table: 19216
ARIN Prefixes per ASN: 15.05
ARIN Region origin ASes announcing only one prefix: 7013
ARIN Region transit ASes present in the Internet Routing Table: 2004
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 39
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5133
Number of ARIN addresses announced to Internet: 1344975616
Equivalent to 80 /8s, 42 /16s and 179 /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: 271458
Total RIPE prefixes after maximum aggregation: 131838
RIPE Deaggregation factor: 2.06
Prefixes being announced from the RIPE address blocks: 268496
Unique aggregates announced from the RIPE address blocks: 171529
RIPE Region origin ASes present in the Internet Routing Table: 28850
RIPE Prefixes per ASN: 9.31
RIPE Region origin ASes announcing only one prefix: 12059
RIPE Region transit ASes present in the Internet Routing Table: 3992
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 43
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12232
Number of RIPE addresses announced to Internet: 732340096
Equivalent to 43 /8s, 166 /16s and 159 /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: 123921
Total LACNIC prefixes after maximum aggregation: 29092
LACNIC Deaggregation factor: 4.26
Prefixes being announced from the LACNIC address blocks: 121260
Unique aggregates announced from the LACNIC address blocks: 48836
LACNIC Region origin ASes present in the Internet Routing Table: 11196
LACNIC Prefixes per ASN: 10.83
LACNIC Region origin ASes announcing only one prefix: 2661
LACNIC Region transit ASes present in the Internet Routing Table: 2512
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 56
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9128
Number of LACNIC addresses announced to Internet: 177903616
Equivalent to 10 /8s, 154 /16s and 152 /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: 34663
Total AfriNIC prefixes after maximum aggregation: 6685
AfriNIC Deaggregation factor: 5.19
Prefixes being announced from the AfriNIC address blocks: 47528
Unique aggregates announced from the AfriNIC address blocks: 15322
AfriNIC Region origin ASes present in the Internet Routing Table: 1912
AfriNIC Prefixes per ASN: 24.86
AfriNIC Region origin ASes announcing only one prefix: 689
AfriNIC Region transit ASes present in the Internet Routing Table: 378
Average AfriNIC Region AS path length visible: 6.1
Max AfriNIC Region AS path length visible: 65
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1268
Number of AfriNIC addresses announced to Internet: 104378624
Equivalent to 6 /8s, 56 /16s and 177 /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 10342 8754 93 CHINAMOBILE-CN China Mobile Communication
7545 6206 843 661 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4809 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4183 528 274 BBIL-AP BHARTI Airtel Ltd., IN
7552 3912 1331 25 VIETEL-AS-AP Viettel Group, VN
7713 3672 1036 72 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3266 1869 102 VNPT-AS-VN VNPT Corp, VN
24560 2836 852 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2294 11519 596 KIXS-AS-KR Korea Telecom, KR
4755 2219 434 193 TATACOMM-AS TATA Communications formerly
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 12684 38941 3720 AMAZON-02, US
11492 4697 312 552 CABLEONE, US
7155 4177 287 86 VIASAT-SP-BACKBONE, US
174 4108 8758 876 COGENT-174, US
6327 3615 1320 81 SHAW, CA
22773 3385 3033 186 ASN-CXA-ALL-CCI-22773-RDC, US
749 3259 54879 2506 DNIC-AS-00749, US
16625 2926 1258 2160 AKAMAI-AS, US
396982 2906 3657 446 GOOGLE-CLOUD-PLATFORM, US
30036 2573 358 283 MEDIACOM-ENTERPRISE-BUSINESS, 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 7759 1711 144 UNI2-AS, ES
39891 4797 293 62 ALJAWWALSTC-AS, SA
20940 3923 3395 129 AKAMAI-ASN1, NL
9009 3694 318 1911 M247, RO
12389 2991 2302 890 ROSTELECOM-AS, RU
34984 2370 361 581 TELLCOM-AS, TR
212238 1905 136 1405 CDNEXT, GB
8452 1616 1852 14 TE-AS TE-AS, EG
13188 1607 100 26 TRIOLAN, UA
62240 1495 99 748 CLOUVIDER Clouvider - Global ASN, GB
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 11674 3224 602 UNINET, MX
10620 3540 492 954 Telmex Colombia S.A., CO
13999 2513 539 366 Mega Cable, S.A. de C.V., MX
11830 1992 369 64 Instituto Costarricense de Electricidad y
28573 1336 2438 262 Claro NXT Telecomunicacoes Ltda, BR
3816 1328 777 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
11664 1155 278 33 Techtel LMDS Comunicaciones Interactivas
6503 1137 374 163 Axtel, S.A.B. de C.V., MX
6147 1104 371 22 Telefonica del Peru S.A.A., PE
22884 1076 98 370 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
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 1681 601 30 RAYA-AS, EG
24863 1650 389 16 LINKdotNET-AS, EG
29571 1547 98 102 ORANGE-COTE-IVOIRE, CI
36992 1425 1518 286 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
36935 1002 521 42 Vodafone-, EG
20011 978 180 282 INTERNET-SOLUTIONS, ZA
37069 867 1083 15 MOBINIL, EG
6713 557 1861 35 IAM-AS, MA
36914 550 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 12684 38941 3720 AMAZON-02, US
8151 11674 3224 602 UNINET, MX
9808 10342 8754 93 CHINAMOBILE-CN China Mobile Communication
12479 7759 1711 144 UNI2-AS, ES
7545 6206 843 661 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4809 4192 76 ERX-CERNET-BKB China Education and Resear
39891 4797 293 62 ALJAWWALSTC-AS, SA
11492 4697 312 552 CABLEONE, US
9498 4183 528 274 BBIL-AP BHARTI Airtel Ltd., IN
7155 4177 287 86 VIASAT-SP-BACKBONE, US
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
8151 11674 11072 UNINET, MX
9808 10342 10249 CHINAMOBILE-CN China Mobile Communications Grou
12479 7759 7615 UNI2-AS, ES
7545 6206 5545 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4797 4735 ALJAWWALSTC-AS, SA
4538 4809 4733 ERX-CERNET-BKB China Education and Research Net
11492 4697 4145 CABLEONE, US
7155 4177 4091 VIASAT-SP-BACKBONE, US
9498 4183 3909 BBIL-AP BHARTI Airtel Ltd., IN
7552 3912 3887 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
400866 UNALLOCATED 2.59.148.0/23 21859 ZEN-ECN, US
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D
40493 UNALLOCATED 8.17.26.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
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 46887 CROWNCASTLE-AS46887, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, 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: 6939 HURRICANE, US
23.132.192.0/24 Origin: 30500 WOLFPAWSERVICES, CA
23.132.192.0/24 Transit: 6939 HURRICANE, US
23.140.16.0/24 Origin: 63371 RESERVED, ZZ
23.140.16.0/24 Transit: 10796 TWC-10796-MIDWEST, US
23.140.48.0/24 Origin: 63371 RESERVED, ZZ
23.140.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.140.176.0/24 Origin: 40676 AS40676, US
23.140.176.0/24 Transit: 7922 COMCAST-7922, 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 /9:16 /10:42 /11:92 /12:308
/13:586 /14:1216 /15:2148 /16:13940 /17:8322 /18:13791
/19:24798 /20:44710 /21:52523 /22:112563 /23:101098 /24:598341
/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
12479 6719 7759 UNI2-AS, ES
8151 5887 11674 UNINET, MX
11492 3555 4697 CABLEONE, US
39891 3489 4797 ALJAWWALSTC-AS, SA
6327 3410 3615 SHAW, CA
7155 3125 4177 VIASAT-SP-BACKBONE, US
22773 2520 3385 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2269 12684 AMAZON-02, US
30036 2234 2573 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2180 3540 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1664 2:1533 3:568 4:9 5:4497 6:165
7:6 8:1550 9:1 11:172 12:1383 13:352
14:2538 15:343 16:270 17:362 18:915 20:450
21:4 22:188 23:7258 24:2735 25:2 27:2665
29:19 31:3115 32:41 34:71 35:183 36:2419
37:4613 38:9122 39:895 40:151 41:4195 42:969
43:2511 44:345 45:18207 46:4959 47:295 49:1994
50:1868 51:590 52:1568 54:307 55:1142 56:9
57:235 58:2156 59:1247 60:1162 61:2796 62:2937
63:1830 64:5495 65:2203 66:4637 67:3028 68:1182
69:4020 70:1103 71:607 72:2863 74:2781 75:1639
76:632 77:2612 78:1854 79:1575 80:2231 81:2047
82:2129 83:1410 84:1804 85:3289 86:1004 87:2437
88:1277 89:4354 90:755 91:8332 92:2775 93:2875
94:3928 95:4170 96:1293 97:308 98:990 99:735
100:71 101:1141 102:3659 103:32287 104:4653 105:751
106:1015 107:2603 108:1175 109:4084 110:2222 111:3409
112:2047 113:1524 114:1943 115:2132 116:2030 117:2745
118:2432 119:1924 120:1890 121:1409 122:2758 123:2161
124:1607 125:2891 126:94 128:1574 129:964 130:1269
131:1875 132:810 133:451 134:1519 135:322 136:1331
137:1150 138:2905 139:1579 140:1542 141:1477 142:1830
143:1605 144:1036 145:459 146:2144 147:2054 148:2586
149:2847 150:1197 151:1642 152:2065 153:504 154:7911
155:1611 156:3494 157:1872 158:1254 159:2435 160:3508
161:1811 162:3647 163:1787 164:1700 165:2177 166:1325
167:1875 168:4093 169:797 170:5065 171:999 172:4301
173:3198 174:918 175:1261 176:3601 177:4827 178:3786
179:2198 180:2547 181:3958 182:3368 183:1825 184:2262
185:21445 186:5094 187:4320 188:4235 189:4143 190:9556
191:1540 192:11249 193:9383 194:7719 195:5474 196:3213
197:3608 198:6179 199:8297 200:8154 201:6293 202:10563
203:10516 204:4556 205:3667 206:4669 207:3605 208:4193
209:5151 210:4791 211:2620 212:4519 213:3747 214:1050
215:42 216:6612 217:3104 218:1388 219:538 220:2111
221:1053 222:848 223:2336
End of report
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