[lacnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora en apnic.net
Vie Feb 28 15:02:17 -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 Mar, 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: 976495
Prefixes after maximum aggregation (per Origin AS): 373759
Deaggregation factor: 2.61
Unique aggregates announced (without unneeded subnets): 475448
Number of IPv4 prefixes with a valid ROA: 527690
Number of IPv4 prefixes with an invalid ROA: 2120
Number of IPv4 prefixes with no ROA: 446685
Total ASes present in the Internet Routing Table: 76714
Prefixes per ASN: 12.73
Origin-only ASes present in the Internet Routing Table: 65661
Origin ASes announcing only one prefix: 26909
Transit ASes present in the Internet Routing Table: 11053
Transit-only ASes present in the Internet Routing Table: 539
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: 987
Number of instances of unregistered ASNs: 1005
Number of 32-bit ASNs allocated by the RIRs: 46215
Number of 32-bit ASNs visible in the Routing Table: 37939
Prefixes from 32-bit ASNs in the Routing Table: 199640
Number of bogon 32-bit ASNs visible in the Routing Table: 66
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 468
Number of addresses announced to Internet: 3110173824
Equivalent to 185 /8s, 97 /16s and 124 /24s
Percentage of available address space announced: 84.0
Percentage of allocated address space announced: 84.0
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: 320345
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 256651
Total APNIC prefixes after maximum aggregation: 76857
APNIC Deaggregation factor: 3.34
Prefixes being announced from the APNIC address blocks: 248562
Unique aggregates announced from the APNIC address blocks: 102733
APNIC Region origin ASes present in the Internet Routing Table: 14570
APNIC Prefixes per ASN: 17.06
APNIC Region origin ASes announcing only one prefix: 4442
APNIC Region transit ASes present in the Internet Routing Table: 1960
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 38
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10050
Number of APNIC addresses announced to Internet: 750480896
Equivalent to 44 /8s, 187 /16s and 110 /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: 287838
Total ARIN prefixes after maximum aggregation: 127909
ARIN Deaggregation factor: 2.25
Prefixes being announced from the ARIN address blocks: 289408
Unique aggregates announced from the ARIN address blocks: 136083
ARIN Region origin ASes present in the Internet Routing Table: 19254
ARIN Prefixes per ASN: 15.03
ARIN Region origin ASes announcing only one prefix: 7037
ARIN Region transit ASes present in the Internet Routing Table: 2012
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5176
Number of ARIN addresses announced to Internet: 1348417536
Equivalent to 80 /8s, 95 /16s and 56 /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: 272485
Total RIPE prefixes after maximum aggregation: 132340
RIPE Deaggregation factor: 2.06
Prefixes being announced from the RIPE address blocks: 269922
Unique aggregates announced from the RIPE address blocks: 172290
RIPE Region origin ASes present in the Internet Routing Table: 28862
RIPE Prefixes per ASN: 9.35
RIPE Region origin ASes announcing only one prefix: 12068
RIPE Region transit ASes present in the Internet Routing Table: 3995
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 45
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12291
Number of RIPE addresses announced to Internet: 732722816
Equivalent to 43 /8s, 172 /16s and 118 /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: 123676
Total LACNIC prefixes after maximum aggregation: 29215
LACNIC Deaggregation factor: 4.23
Prefixes being announced from the LACNIC address blocks: 120582
Unique aggregates announced from the LACNIC address blocks: 48886
LACNIC Region origin ASes present in the Internet Routing Table: 11207
LACNIC Prefixes per ASN: 10.76
LACNIC Region origin ASes announcing only one prefix: 2664
LACNIC Region transit ASes present in the Internet Routing Table: 2508
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: 9149
Number of LACNIC addresses announced to Internet: 173813760
Equivalent to 10 /8s, 92 /16s and 48 /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: 34858
Total AfriNIC prefixes after maximum aggregation: 6813
AfriNIC Deaggregation factor: 5.12
Prefixes being announced from the AfriNIC address blocks: 47553
Unique aggregates announced from the AfriNIC address blocks: 15048
AfriNIC Region origin ASes present in the Internet Routing Table: 1912
AfriNIC Prefixes per ASN: 24.87
AfriNIC Region origin ASes announcing only one prefix: 698
AfriNIC Region transit ASes present in the Internet Routing Table: 384
Average AfriNIC Region AS path length visible: 6.0
Max AfriNIC Region AS path length visible: 65
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1273
Number of AfriNIC addresses announced to Internet: 104494080
Equivalent to 6 /8s, 58 /16s and 116 /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 10331 8754 93 CHINAMOBILE-CN China Mobile Communication
7545 6215 843 659 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4813 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4242 530 277 BBIL-AP BHARTI Airtel Ltd., IN
7552 3920 1332 26 VIETEL-AS-AP Viettel Group, VN
7713 3675 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3275 1869 102 VNPT-AS-VN VNPT Corp, VN
24560 2846 855 533 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2353 11522 606 KIXS-AS-KR Korea Telecom, KR
45090 2207 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer
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 12803 39185 3778 AMAZON-02, US
11492 4704 312 566 CABLEONE, US
7155 4175 286 83 VIASAT-SP-BACKBONE, US
6327 3623 1320 81 SHAW, CA
22773 3372 3033 180 ASN-CXA-ALL-CCI-22773-RDC, US
174 3289 8762 929 COGENT-174, US
749 3260 54879 2507 DNIC-AS-00749, US
16625 3004 1275 2201 AKAMAI-AS, US
396982 2935 3660 453 GOOGLE-CLOUD-PLATFORM, US
30036 2582 358 326 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 7758 1714 145 UNI2-AS, ES
39891 4797 293 62 ALJAWWALSTC-AS, SA
20940 3948 3395 131 AKAMAI-ASN1, NL
9009 3760 322 1928 M247, RO
12389 2989 2303 895 ROSTELECOM-AS, RU
34984 2367 361 580 TELLCOM-AS, TR
212238 2008 145 1483 CDNEXT, GB
8452 1617 1852 14 TE-AS TE-AS, EG
13188 1606 100 34 TRIOLAN, UA
62240 1489 98 748 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 11783 3235 591 UNINET, MX
10620 3547 492 953 Telmex Colombia S.A., CO
13999 2512 539 370 Mega Cable, S.A. de C.V., MX
11830 1992 369 64 Instituto Costarricense de Electricidad y
28573 1351 2436 268 Claro NXT Telecomunicacoes Ltda, BR
3816 1329 777 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1172 371 22 Telefonica del Peru S.A.A., PE
11664 1165 278 33 Techtel LMDS Comunicaciones Interactivas
6503 1130 374 163 Axtel, S.A.B. de C.V., MX
22884 1048 82 371 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 1683 599 30 RAYA-AS, EG
24863 1619 389 16 LINKdotNET-AS, EG
29571 1570 99 102 ORANGE-COTE-IVOIRE, CI
36992 1426 1518 286 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
36935 1013 523 45 Vodafone-, EG
20011 980 183 284 INTERNET-SOLUTIONS, ZA
37069 847 1083 15 MOBINIL, EG
6713 558 1861 35 IAM-AS, MA
36914 553 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 12803 39185 3778 AMAZON-02, US
8151 11783 3235 591 UNINET, MX
9808 10331 8754 93 CHINAMOBILE-CN China Mobile Communication
12479 7758 1714 145 UNI2-AS, ES
7545 6215 843 659 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4813 4192 76 ERX-CERNET-BKB China Education and Resear
39891 4797 293 62 ALJAWWALSTC-AS, SA
11492 4704 312 566 CABLEONE, US
9498 4242 530 277 BBIL-AP BHARTI Airtel Ltd., IN
7155 4175 286 83 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 11783 11192 UNINET, MX
9808 10331 10238 CHINAMOBILE-CN China Mobile Communications Grou
12479 7758 7613 UNI2-AS, ES
7545 6215 5556 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4813 4737 ERX-CERNET-BKB China Education and Research Net
39891 4797 4735 ALJAWWALSTC-AS, SA
11492 4704 4138 CABLEONE, US
7155 4175 4092 VIASAT-SP-BACKBONE, US
9498 4242 3965 BBIL-AP BHARTI Airtel Ltd., IN
7552 3920 3894 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
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
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
54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.38.73.0/24 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: 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
23.140.216.0/24 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
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 /12:304
/13:584 /14:1216 /15:2146 /16:13969 /17:8345 /18:13795
/19:24787 /20:44725 /21:52426 /22:112683 /23:101326 /24:599335
/25:688 /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 6712 7758 UNI2-AS, ES
8151 5985 11783 UNINET, MX
11492 3555 4704 CABLEONE, US
39891 3489 4797 ALJAWWALSTC-AS, SA
6327 3418 3623 SHAW, CA
7155 3121 4175 VIASAT-SP-BACKBONE, US
22773 2510 3372 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2276 12803 AMAZON-02, US
30036 2242 2582 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2187 3547 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1668 2:1513 3:576 4:10 5:4534 6:167
7:6 8:1560 9:1 11:172 12:1379 13:350
14:2551 15:350 16:277 17:358 18:918 20:454
21:4 22:188 23:7347 24:2728 25:2 27:2666
29:19 31:3175 32:38 34:78 35:201 36:2422
37:4608 38:8728 39:897 40:153 41:4165 42:952
43:2523 44:350 45:18368 46:4997 47:293 49:1985
50:1892 51:590 52:1570 54:302 55:911 56:9
57:241 58:2161 59:1280 60:1167 61:2793 62:2885
63:1833 64:5499 65:2173 66:4621 67:3049 68:1122
69:3963 70:1104 71:609 72:2879 74:2786 75:1649
76:615 77:2668 78:1856 79:1727 80:2221 81:2012
82:2690 83:1391 84:1811 85:3359 86:1030 87:2408
88:1284 89:4304 90:777 91:8314 92:2802 93:2891
94:3917 95:4244 96:1343 97:318 98:973 99:739
100:71 101:1150 102:3644 103:32322 104:4801 105:758
106:998 107:2594 108:1219 109:4102 110:2232 111:3325
112:2047 113:1531 114:1944 115:2097 116:2049 117:2758
118:2416 119:1929 120:1896 121:1417 122:2771 123:2177
124:1617 125:2901 126:94 128:1559 129:964 130:1273
131:1849 132:794 133:450 134:1532 135:329 136:1310
137:1162 138:2890 139:1610 140:1563 141:1474 142:1824
143:1620 144:1066 145:467 146:2140 147:2068 148:2580
149:2876 150:1222 151:1704 152:2109 153:504 154:7510
155:1599 156:3215 157:1889 158:1262 159:2442 160:3530
161:1924 162:3690 163:1853 164:1700 165:2186 166:1368
167:1878 168:4049 169:794 170:5075 171:1003 172:4342
173:3232 174:915 175:1266 176:3625 177:4685 178:3766
179:2223 180:2575 181:4014 182:3377 183:1824 184:2299
185:21451 186:5078 187:4318 188:4197 189:4205 190:9650
191:1529 192:11179 193:9395 194:7749 195:5514 196:3283
197:3634 198:6193 199:8378 200:8167 201:6292 202:10580
203:10525 204:4560 205:3664 206:4622 207:3585 208:4197
209:5227 210:4806 211:2633 212:4510 213:3750 214:1054
215:42 216:6568 217:3108 218:1389 219:537 220:2101
221:1051 222:849 223:2343
End of report
Más información sobre la lista de distribución LACNOG