[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Apr 19 18:02:18 UTC 2024
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 20 Apr, 2024
BGP Table (Global) as seen in Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 944392
Prefixes after maximum aggregation (per Origin AS): 360904
Deaggregation factor: 2.62
Unique aggregates announced (without unneeded subnets): 460300
Total ASes present in the Internet Routing Table: 75677
Prefixes per ASN: 12.48
Origin-only ASes present in the Internet Routing Table: 64892
Origin ASes announcing only one prefix: 26586
Transit ASes present in the Internet Routing Table: 10785
Transit-only ASes present in the Internet Routing Table: 517
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 121
Max AS path prepend of ASN (150315) 116
Prefixes from unregistered ASNs in the Routing Table: 1044
Number of instances of unregistered ASNs: 1046
Number of 32-bit ASNs allocated by the RIRs: 44204
Number of 32-bit ASNs visible in the Routing Table: 36243
Prefixes from 32-bit ASNs in the Routing Table: 185454
Number of bogon 32-bit ASNs visible in the Routing Table: 16
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 589
Number of addresses announced to Internet: 3028224640
Equivalent to 180 /8s, 127 /16s and 10 /24s
Percentage of available address space announced: 81.8
Percentage of allocated address space announced: 81.8
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: 311370
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 250540
Total APNIC prefixes after maximum aggregation: 73742
APNIC Deaggregation factor: 3.40
Prefixes being announced from the APNIC address blocks: 242704
Unique aggregates announced from the APNIC address blocks: 100466
APNIC Region origin ASes present in the Internet Routing Table: 14096
APNIC Prefixes per ASN: 17.22
APNIC Region origin ASes announcing only one prefix: 4271
APNIC Region transit ASes present in the Internet Routing Table: 1872
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 121
Number of APNIC region 32-bit ASNs visible in the Routing Table: 9479
Number of APNIC addresses announced to Internet: 761931136
Equivalent to 45 /8s, 106 /16s and 37 /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: 275322
Total ARIN prefixes after maximum aggregation: 124663
ARIN Deaggregation factor: 2.21
Prefixes being announced from the ARIN address blocks: 280196
Unique aggregates announced from the ARIN address blocks: 133382
ARIN Region origin ASes present in the Internet Routing Table: 19136
ARIN Prefixes per ASN: 14.64
ARIN Region origin ASes announcing only one prefix: 6960
ARIN Region transit ASes present in the Internet Routing Table: 1985
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4877
Number of ARIN addresses announced to Internet: 1268923648
Equivalent to 75 /8s, 162 /16s and 61 /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, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 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: 264976
Total RIPE prefixes after maximum aggregation: 126706
RIPE Deaggregation factor: 2.09
Prefixes being announced from the RIPE address blocks: 259717
Unique aggregates announced from the RIPE address blocks: 163430
RIPE Region origin ASes present in the Internet Routing Table: 28606
RIPE Prefixes per ASN: 9.08
RIPE Region origin ASes announcing only one prefix: 12110
RIPE Region transit ASes present in the Internet Routing Table: 3975
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11737
Number of RIPE addresses announced to Internet: 714687488
Equivalent to 42 /8s, 153 /16s and 68 /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,
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: 121535
Total LACNIC prefixes after maximum aggregation: 28949
LACNIC Deaggregation factor: 4.20
Prefixes being announced from the LACNIC address blocks: 119765
Unique aggregates announced from the LACNIC address blocks: 49448
LACNIC Region origin ASes present in the Internet Routing Table: 11081
LACNIC Prefixes per ASN: 10.81
LACNIC Region origin ASes announcing only one prefix: 2599
LACNIC Region transit ASes present in the Internet Routing Table: 2396
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 55
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8956
Number of LACNIC addresses announced to Internet: 177085440
Equivalent to 10 /8s, 142 /16s and 28 /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: 30975
Total AfriNIC prefixes after maximum aggregation: 6161
AfriNIC Deaggregation factor: 5.03
Prefixes being announced from the AfriNIC address blocks: 41421
Unique aggregates announced from the AfriNIC address blocks: 13111
AfriNIC Region origin ASes present in the Internet Routing Table: 1829
AfriNIC Prefixes per ASN: 22.65
AfriNIC Region origin ASes announcing only one prefix: 646
AfriNIC Region transit ASes present in the Internet Routing Table: 357
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1194
Number of AfriNIC addresses announced to Internet: 105283840
Equivalent to 6 /8s, 70 /16s and 129 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 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 9882 8744 69 CHINAMOBILE-CN China Mobile Communicati
7545 5665 778 678 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4936 4192 76 ERX-CERNET-BKB China Education and Rese
7552 3879 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3618 1043 64 TELKOMNET-AS-AP PT Telekomunikasi Indon
9498 3595 499 257 BBIL-AP BHARTI Airtel Ltd., IN
45899 3290 1872 99 VNPT-AS-VN VNPT Corp, VN
24560 2782 864 374 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
4766 2313 11524 584 KIXS-AS-KR Korea Telecom, KR
4755 2199 434 196 TATACOMM-AS TATA Communications formerl
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 9846 11366 3476 AMAZON-02, US
11492 4603 305 604 CABLEONE, US
7155 4170 287 90 VIASAT-SP-BACKBONE, US
6327 3609 1320 75 SHAW, CA
22773 3512 3048 241 ASN-CXA-ALL-CCI-22773-RDC, US
174 3319 6629 838 COGENT-174, US
749 3202 54912 2454 DNIC-AS-00749, US
16625 3112 1323 2216 AKAMAI-AS, US
367 2828 3551 1347 DNIC-ASBLK-00306-00371, US
7018 2767 23647 1772 ATT-INTERNET4, 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 7711 1709 144 UNI2-AS, ES
39891 4758 286 60 ALJAWWALSTC-AS, SA
20940 3879 3396 128 AKAMAI-ASN1, NL
9009 3284 285 1607 M247, RO
12389 2976 2303 899 ROSTELECOM-AS, RU
8551 2640 368 35 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
34984 2349 364 583 TELLCOM-AS, TR
13188 1607 100 26 TRIOLAN, UA
8452 1549 1852 14 TE-AS TE-AS, EG
44477 1536 100 727 STARK-INDUSTRIES, 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 12393 3319 483 UNINET, MX
10620 3524 495 908 Telmex Colombia S.A., CO
13999 2530 350 660 Mega Cable, S.A. de C.V., MX
11830 2004 369 64 Instituto Costarricense de Electricidad
28573 1340 2313 251 Claro NXT Telecomunicacoes Ltda, BR
3816 1314 788 192 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11664 1156 175 429 Techtel LMDS Comunicaciones Interactiva
6503 1133 314 478 Axtel, S.A.B. de C.V., MX
6147 1102 369 22 Telefonica del Peru S.A.A., PE
22884 1068 114 390 TOTAL PLAY TELECOMUNICACIONES SA DE CV,
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 1549 545 28 RAYA-AS, EG
24863 1501 389 20 LINKdotNET-AS, EG
36992 1368 1519 282 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
29571 1206 76 63 ORANGE-COTE-IVOIRE, CI
36935 935 521 42 Vodafone-, EG
6713 557 1861 35 IAM-AS, MA
15399 531 56 54 WANANCHI-, KE
36914 483 82 3 KENET-AS, KE
24757 436 73 5 EthioNet-AS, ET
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
8151 12393 3319 483 UNINET, MX
9808 9882 8744 69 CHINAMOBILE-CN China Mobile Communicati
16509 9846 11366 3476 AMAZON-02, US
12479 7711 1709 144 UNI2-AS, ES
7545 5665 778 678 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4936 4192 76 ERX-CERNET-BKB China Education and Rese
39891 4758 286 60 ALJAWWALSTC-AS, SA
11492 4603 305 604 CABLEONE, US
7155 4170 287 90 VIASAT-SP-BACKBONE, US
7552 3879 1330 20 VIETEL-AS-AP Viettel Group, VN
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 9882 9813 CHINAMOBILE-CN China Mobile Communications Grou
12479 7711 7567 UNI2-AS, ES
16509 9846 6370 AMAZON-02, US
7545 5665 4987 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4936 4860 ERX-CERNET-BKB China Education and Research Net
39891 4758 4698 ALJAWWALSTC-AS, SA
7155 4170 4080 VIASAT-SP-BACKBONE, US
11492 4603 3999 CABLEONE, US
7552 3879 3859 VIETEL-AS-AP Viettel Group, VN
20940 3879 3751 AKAMAI-ASN1, NL
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
65536 DOCUMENT 5.102.30.0/24 65512 -Private Use AS-, ZZ
33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M
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
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, 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
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
23.175.120.0/24 Origin: 400967 ASSUREDNET-ASN1, US
23.175.120.0/24 Transit: 21700 NEPTUNE-NETWORKS, US
23.189.192.0/24 Origin: 27593 RESERVED, ZZ
23.189.192.0/24 Transit: 174 COGENT-174, US
27.0.192.0/22 Origin: 138415 YANCYLIMITED-AS-HK Yancy Limited, HK
27.0.192.0/22 Transit: 51847 NEAROUTE, HK
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 /10:37 /11:95 /12:298
/13:583 /14:1195 /15:2068 /16:13285 /17:8263 /18:13701
/19:24845 /20:43905 /21:51701 /22:111356 /23:98720 /24:573584
/25:726 /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 6826 7711 UNI2-AS, ES
8151 6425 12393 UNINET, MX
11492 3516 4603 CABLEONE, US
39891 3440 4758 ALJAWWALSTC-AS, SA
6327 3406 3609 SHAW, CA
7155 3114 4170 VIASAT-SP-BACKBONE, US
22773 2601 3512 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2145 2490 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2137 3524 Telmex Colombia S.A., CO
8551 2116 2640 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1654 2:1502 3:324 4:6 5:4527 6:163
7:6 8:1513 9:1 11:172 12:1456 13:371
14:2399 15:317 16:209 17:369 18:765 20:361
21:4 22:188 23:6690 24:2711 25:2 27:2561
29:19 31:2698 32:48 34:60 35:131 36:2298
37:4471 38:7279 39:891 40:123 41:4093 42:984
43:2376 44:314 45:17061 46:4442 47:305 49:1948
50:1922 51:573 52:1584 54:311 55:927 56:5
57:169 58:1922 59:1251 60:1032 61:2592 62:2693
63:1892 64:5528 65:2346 66:4694 67:3002 68:1336
69:4115 70:1188 71:574 72:2892 74:2594 75:1551
76:610 77:2435 78:1849 79:2495 80:2182 81:1962
82:1560 83:1317 84:1640 85:3129 86:841 87:2266
88:1241 89:4070 90:667 91:8104 92:2215 93:2667
94:3676 95:4138 96:1294 97:314 98:1038 99:742
100:78 101:1186 102:3143 103:32556 104:4845 105:651
106:949 107:2772 108:1111 109:4113 110:2146 111:3297
112:2074 113:1594 114:1785 115:2033 116:1889 117:2624
118:2392 119:1969 120:1808 121:1327 122:2662 123:2237
124:1622 125:2888 126:32 128:1482 129:937 130:1120
131:1842 132:803 133:410 134:1719 135:319 136:938
137:1062 138:2831 139:1550 140:1392 141:1367 142:1587
143:1481 144:1005 145:345 146:2063 147:1854 148:2494
149:2580 150:1036 151:1343 152:2028 153:524 154:6491
155:1450 156:2470 157:1722 158:1117 159:2328 160:2641
161:1637 162:3587 163:1697 164:1639 165:2130 166:1172
167:1792 168:3914 169:798 170:4826 171:1021 172:3828
173:3032 174:901 175:1201 176:3648 177:4649 178:3572
179:2267 180:2356 181:3690 182:3432 183:1806 184:2271
185:20730 186:5010 187:4480 188:4063 189:4172 190:9294
191:1446 192:10972 193:9066 194:7473 195:5275 196:3145
197:2478 198:6037 199:7652 200:8044 201:6311 202:10478
203:10170 204:4566 205:3775 206:4494 207:3495 208:4153
209:5066 210:4658 211:2580 212:4288 213:3426 214:1061
215:50 216:6775 217:2821 218:1362 219:579 220:2048
221:1033 222:880 223:2241
End of report
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