[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Feb 2 18:02:31 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 03 Feb, 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: 940493
Prefixes after maximum aggregation (per Origin AS): 357581
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 456313
Total ASes present in the Internet Routing Table: 75360
Prefixes per ASN: 12.48
Origin-only ASes present in the Internet Routing Table: 64592
Origin ASes announcing only one prefix: 26541
Transit ASes present in the Internet Routing Table: 10768
Transit-only ASes present in the Internet Routing Table: 494
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: 1108
Number of instances of unregistered ASNs: 1110
Number of 32-bit ASNs allocated by the RIRs: 43555
Number of 32-bit ASNs visible in the Routing Table: 35809
Prefixes from 32-bit ASNs in the Routing Table: 181205
Number of bogon 32-bit ASNs visible in the Routing Table: 33
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 503
Number of addresses announced to Internet: 3044438912
Equivalent to 181 /8s, 118 /16s and 115 /24s
Percentage of available address space announced: 82.2
Percentage of allocated address space announced: 82.2
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: 310387
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 251780
Total APNIC prefixes after maximum aggregation: 72796
APNIC Deaggregation factor: 3.46
Prefixes being announced from the APNIC address blocks: 244553
Unique aggregates announced from the APNIC address blocks: 100011
APNIC Region origin ASes present in the Internet Routing Table: 13956
APNIC Prefixes per ASN: 17.52
APNIC Region origin ASes announcing only one prefix: 4211
APNIC Region transit ASes present in the Internet Routing Table: 1891
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: 9325
Number of APNIC addresses announced to Internet: 774566272
Equivalent to 46 /8s, 42 /16s and 241 /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: 274581
Total ARIN prefixes after maximum aggregation: 123714
ARIN Deaggregation factor: 2.22
Prefixes being announced from the ARIN address blocks: 279530
Unique aggregates announced from the ARIN address blocks: 132071
ARIN Region origin ASes present in the Internet Routing Table: 19095
ARIN Prefixes per ASN: 14.64
ARIN Region origin ASes announcing only one prefix: 6956
ARIN Region transit ASes present in the Internet Routing Table: 1966
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4843
Number of ARIN addresses announced to Internet: 1270334464
Equivalent to 75 /8s, 183 /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, 393216-401308
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: 262220
Total RIPE prefixes after maximum aggregation: 125357
RIPE Deaggregation factor: 2.09
Prefixes being announced from the RIPE address blocks: 256822
Unique aggregates announced from the RIPE address blocks: 161039
RIPE Region origin ASes present in the Internet Routing Table: 28523
RIPE Prefixes per ASN: 9.00
RIPE Region origin ASes announcing only one prefix: 12090
RIPE Region transit ASes present in the Internet Routing Table: 3958
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 37
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11556
Number of RIPE addresses announced to Internet: 714250752
Equivalent to 42 /8s, 146 /16s and 154 /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: 120329
Total LACNIC prefixes after maximum aggregation: 28856
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 118942
Unique aggregates announced from the LACNIC address blocks: 49633
LACNIC Region origin ASes present in the Internet Routing Table: 11065
LACNIC Prefixes per ASN: 10.75
LACNIC Region origin ASes announcing only one prefix: 2640
LACNIC Region transit ASes present in the Internet Routing Table: 2390
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: 8918
Number of LACNIC addresses announced to Internet: 177976064
Equivalent to 10 /8s, 155 /16s and 179 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + 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: 30475
Total AfriNIC prefixes after maximum aggregation: 6138
AfriNIC Deaggregation factor: 4.96
Prefixes being announced from the AfriNIC address blocks: 40143
Unique aggregates announced from the AfriNIC address blocks: 13145
AfriNIC Region origin ASes present in the Internet Routing Table: 1822
AfriNIC Prefixes per ASN: 22.03
AfriNIC Region origin ASes announcing only one prefix: 644
AfriNIC Region transit ASes present in the Internet Routing Table: 350
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 30
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1167
Number of AfriNIC addresses announced to Internet: 107021056
Equivalent to 6 /8s, 97 /16s and 3 /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 9830 8740 56 CHINAMOBILE-CN China Mobile Communicati
7545 5678 784 684 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4917 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4563 347 25 FPT-AS-AP FPT Telecom Company, VN
7552 3878 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3582 1038 55 TELKOMNET-AS-AP PT Telekomunikasi Indon
9498 3475 499 255 BBIL-AP BHARTI Airtel Ltd., IN
45899 3283 1872 99 VNPT-AS-VN VNPT Corp, VN
24560 2688 858 377 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
4766 2302 11258 574 KIXS-AS-KR Korea Telecom, KR
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 9588 11246 3374 AMAZON-02, US
11492 4576 303 662 CABLEONE, US
7155 4177 288 96 VIASAT-SP-BACKBONE, US
22773 3625 3062 301 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3593 1320 74 SHAW, CA
16625 3240 1421 2313 AKAMAI-AS, US
749 3185 54927 2437 DNIC-AS-00749, US
367 2910 3722 1404 DNIC-ASBLK-00306-00371, US
174 2890 6637 666 COGENT-174, US
396982 2749 3639 390 GOOGLE-CLOUD-PLATFORM, 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 7571 1698 148 UNI2-AS, ES
39891 4658 280 55 ALJAWWALSTC-AS, SA
20940 3904 3396 134 AKAMAI-ASN1, NL
9009 3266 284 1583 M247, RO
12389 2968 2301 906 ROSTELECOM-AS, RU
8551 2700 368 35 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
34984 2343 362 596 TELLCOM-AS, TR
13188 1607 100 26 TRIOLAN, UA
58224 1504 856 577 TCI, IR
8452 1497 1852 14 TE-AS TE-AS, EG
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 12385 3385 615 UNINET, MX
10620 3520 496 895 Telmex Colombia S.A., CO
13999 2501 337 641 Mega Cable, S.A. de C.V., MX
11830 2005 369 64 Instituto Costarricense de Electricidad
28573 1325 2319 238 Claro NXT Telecomunicacoes Ltda, BR
3816 1306 787 197 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1237 340 498 Axtel, S.A.B. de C.V., MX
11664 1128 178 423 Techtel LMDS Comunicaciones Interactiva
6147 1088 369 22 Telefonica del Peru S.A.A., PE
22884 1070 115 386 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 1548 545 28 RAYA-AS, EG
24863 1532 389 16 LINKdotNET-AS, EG
36992 1365 1519 282 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
29571 1102 71 57 ORANGE-COTE-IVOIRE, CI
36935 935 521 42 Vodafone-, EG
6713 551 1861 34 IAM-AS, MA
36914 535 82 3 KENET-AS, KE
15399 525 55 53 WANANCHI-, KE
24757 488 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 12385 3385 615 UNINET, MX
9808 9830 8740 56 CHINAMOBILE-CN China Mobile Communicati
16509 9588 11246 3374 AMAZON-02, US
12479 7571 1698 148 UNI2-AS, ES
7545 5678 784 684 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4917 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4658 280 55 ALJAWWALSTC-AS, SA
11492 4576 303 662 CABLEONE, US
18403 4563 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4177 288 96 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
9808 9830 9774 CHINAMOBILE-CN China Mobile Communications Grou
12479 7571 7423 UNI2-AS, ES
16509 9588 6214 AMAZON-02, US
7545 5678 4994 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4917 4842 ERX-CERNET-BKB China Education and Research Net
39891 4658 4603 ALJAWWALSTC-AS, SA
18403 4563 4538 FPT-AS-AP FPT Telecom Company, VN
7155 4177 4081 VIASAT-SP-BACKBONE, US
11492 4576 3914 CABLEONE, US
7552 3878 3858 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
65536 DOCUMENT 5.102.30.0/24 65512 -Private Use AS-, ZZ
33492 UNALLOCATED 8.6.184.0/23 33650 COMCAST-33650, US
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
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 LIGHTOWER, US
396894 UNALLOCATED 8.28.201.0/24 46887 LIGHTOWER, 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
23.176.160.0/24 Origin: 397327 RESERVED, ZZ
23.176.160.0/24 Transit: 19108 SUDDENLINK-COMMUNICATIONS, US
23.189.192.0/24 Origin: 27593 RESERVED, ZZ
23.189.192.0/24 Transit: 174 COGENT-174, US
27.0.192.0/24 Origin: 136800 MOACKCOLTD-AS-AP MOACK.Co.LTD, KR
27.0.192.0/24 Transit: 64050 BCPL-SG BGPNET Global ASN, SG
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 /11:98 /12:300
/13:579 /14:1195 /15:2071 /16:13403 /17:8220 /18:13710
/19:25007 /20:44253 /21:51866 /22:110869 /23:99372 /24:568746
/25:737 /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 6681 7571 UNI2-AS, ES
8151 6363 12385 UNINET, MX
11492 3490 4576 CABLEONE, US
6327 3391 3593 SHAW, CA
39891 3340 4658 ALJAWWALSTC-AS, SA
7155 3121 4177 VIASAT-SP-BACKBONE, US
22773 2659 3625 ASN-CXA-ALL-CCI-22773-RDC, US
8551 2176 2700 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2129 2472 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2126 3520 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2330 2:1541 3:291 4:5 5:4463 6:163
7:6 8:1532 9:1 11:172 12:1479 13:379
14:2355 15:311 16:203 17:362 18:721 20:352
21:4 22:188 23:6595 24:2717 25:2 27:2551
29:19 31:2560 32:56 34:35 35:124 36:2151
37:4481 38:6703 39:900 40:151 41:4087 42:2214
43:2335 44:328 45:16830 46:4295 47:286 49:1907
50:1901 51:572 52:1592 54:359 55:888 56:5
57:140 58:2026 59:1205 60:1018 61:2601 62:2710
63:1921 64:5520 65:2334 66:4928 67:3058 68:1338
69:4102 70:1199 71:579 72:2936 74:2650 75:1556
76:627 77:2352 78:1843 79:2504 80:2133 81:1890
82:1515 83:1248 84:1635 85:3103 86:771 87:1957
88:1219 89:3958 90:668 91:7934 92:2184 93:2635
94:3613 95:4042 96:1288 97:318 98:1035 99:743
100:95 101:1169 102:3054 103:32539 104:4779 105:596
106:922 107:2760 108:1133 109:4025 110:2151 111:3196
112:2070 113:1795 114:1762 115:1967 116:1969 117:2630
118:2754 119:1945 120:1811 121:1324 122:2646 123:2228
124:1605 125:2843 126:28 128:1511 129:926 130:1080
131:1815 132:822 133:410 134:1706 135:307 136:921
137:1034 138:2772 139:1569 140:1319 141:1343 142:1554
143:1521 144:1015 145:344 146:2004 147:1681 148:2505
149:2506 150:1023 151:1319 152:1979 153:528 154:5668
155:1368 156:2104 157:1466 158:1086 159:2205 160:2606
161:1625 162:3605 163:1691 164:1625 165:2104 166:1072
167:1707 168:3829 169:798 170:4719 171:1012 172:3806
173:3008 174:902 175:1216 176:3634 177:4579 178:3520
179:2216 180:2359 181:3654 182:3469 183:2017 184:2277
185:20535 186:4771 187:4343 188:4020 189:4039 190:9308
191:1440 192:11000 193:8982 194:7338 195:5223 196:3140
197:2644 198:6009 199:7107 200:8050 201:6317 202:10471
203:10159 204:4566 205:3733 206:4441 207:3518 208:4125
209:4921 210:4632 211:2597 212:4245 213:3411 214:1107
215:44 216:6808 217:2773 218:1362 219:597 220:2053
221:1020 222:873 223:2229
End of report
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