[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Jan 20 18:03:12 UTC 2023
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
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 21 Jan, 2023
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: 919460
Prefixes after maximum aggregation (per Origin AS): 347315
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 444984
Total ASes present in the Internet Routing Table: 74112
Prefixes per ASN: 12.41
Origin-only ASes present in the Internet Routing Table: 63597
Origin ASes announcing only one prefix: 26170
Transit ASes present in the Internet Routing Table: 10515
Transit-only ASes present in the Internet Routing Table: 430
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 55
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 953
Number of instances of unregistered ASNs: 962
Number of 32-bit ASNs allocated by the RIRs: 41079
Number of 32-bit ASNs visible in the Routing Table: 34073
Prefixes from 32-bit ASNs in the Routing Table: 166405
Number of bogon 32-bit ASNs visible in the Routing Table: 29
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 502
Number of addresses announced to Internet: 3063801088
Equivalent to 182 /8s, 157 /16s and 229 /24s
Percentage of available address space announced: 82.8
Percentage of allocated address space announced: 82.8
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: 312168
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 240538
Total APNIC prefixes after maximum aggregation: 68701
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 235601
Unique aggregates announced from the APNIC address blocks: 97720
APNIC Region origin ASes present in the Internet Routing Table: 13254
APNIC Prefixes per ASN: 17.78
APNIC Region origin ASes announcing only one prefix: 3844
APNIC Region transit ASes present in the Internet Routing Table: 1775
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8514
Number of APNIC addresses announced to Internet: 773715072
Equivalent to 46 /8s, 29 /16s and 244 /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, 131072-151865
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: 267202
Total ARIN prefixes after maximum aggregation: 121273
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 269209
Unique aggregates announced from the ARIN address blocks: 129792
ARIN Region origin ASes present in the Internet Routing Table: 19076
ARIN Prefixes per ASN: 14.11
ARIN Region origin ASes announcing only one prefix: 6986
ARIN Region transit ASes present in the Internet Routing Table: 1962
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4732
Number of ARIN addresses announced to Internet: 1286338048
Equivalent to 76 /8s, 171 /16s and 246 /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: 264243
Total RIPE prefixes after maximum aggregation: 122408
RIPE Deaggregation factor: 2.16
Prefixes being announced from the RIPE address blocks: 260620
Unique aggregates announced from the RIPE address blocks: 156066
RIPE Region origin ASes present in the Internet Routing Table: 28257
RIPE Prefixes per ASN: 9.22
RIPE Region origin ASes announcing only one prefix: 12065
RIPE Region transit ASes present in the Internet Routing Table: 3969
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11001
Number of RIPE addresses announced to Internet: 719149696
Equivalent to 42 /8s, 221 /16s and 90 /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
196608-213403
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: 117563
Total LACNIC prefixes after maximum aggregation: 28462
LACNIC Deaggregation factor: 4.13
Prefixes being announced from the LACNIC address blocks: 116740
Unique aggregates announced from the LACNIC address blocks: 48999
LACNIC Region origin ASes present in the Internet Routing Table: 11002
LACNIC Prefixes per ASN: 10.61
LACNIC Region origin ASes announcing only one prefix: 2683
LACNIC Region transit ASes present in the Internet Routing Table: 2288
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: 8771
Number of LACNIC addresses announced to Internet: 176187136
Equivalent to 10 /8s, 128 /16s and 103 /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: 28961
Total AfriNIC prefixes after maximum aggregation: 5728
AfriNIC Deaggregation factor: 5.06
Prefixes being announced from the AfriNIC address blocks: 36788
Unique aggregates announced from the AfriNIC address blocks: 11999
AfriNIC Region origin ASes present in the Internet Routing Table: 1711
AfriNIC Prefixes per ASN: 21.50
AfriNIC Region origin ASes announcing only one prefix: 592
AfriNIC Region transit ASes present in the Internet Routing Table: 328
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: 1055
Number of AfriNIC addresses announced to Internet: 108122624
Equivalent to 6 /8s, 113 /16s and 210 /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 9446 8884 50 CHINAMOBILE-CN China Mobile Communicati
7545 5945 787 703 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4863 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3632 1331 21 VIETEL-AS-AP Viettel Group, VN
7713 3506 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3382 1874 96 VNPT-AS-VN VNPT Corp, VN
9498 2711 499 238 BBIL-AP BHARTI Airtel Ltd., IN
4766 2531 11251 593 KIXS-AS-KR Korea Telecom, KR
24560 2360 849 436 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
45090 2183 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
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 7809 10710 2912 AMAZON-02, US
11492 4530 300 601 CABLEONE, US
7155 3895 265 33 VIASAT-SP-BACKBONE, US
22773 3693 3066 323 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3499 1320 63 SHAW, CA
16625 3468 1789 2513 AKAMAI-AS, US
749 3024 50575 2291 DNIC-AS-00749, US
7018 2586 24126 1562 ATT-INTERNET4, US
396982 2580 3494 369 GOOGLE-CLOUD-PLATFORM, US
30036 2570 368 356 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 6966 1705 145 UNI2-AS, ES
9121 6117 1692 17 TTNET, TR
39891 4557 269 60 ALJAWWALSTC-AS, SA
20940 4055 3399 179 AKAMAI-ASN1, NL
8551 3905 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2941 2290 908 ROSTELECOM-AS, RU
47331 2792 411 2100 TTNET, TR
9009 2686 255 1361 M247, RO
34984 2253 358 609 TELLCOM-AS, TR
6849 2195 339 20 UKRTELNET, 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 11032 3340 585 Uninet S.A. de C.V., MX
10620 3472 507 854 Telmex Colombia S.A., CO
11830 2261 369 64 Instituto Costarricense de Electricidad
13999 2221 366 594 Mega Cable, S.A. de C.V., MX
28573 1350 2329 257 Claro NXT Telecomunicacoes Ltda, BR
6503 1297 339 517 Axtel, S.A.B. de C.V., MX
3816 1292 742 157 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1151 369 22 Telefonica del Peru S.A.A., PE
11664 1136 186 465 Techtel LMDS Comunicaciones Interactiva
26615 1007 2466 43 TIM SA, BR
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 1544 533 30 RAYA-AS, EG
24863 1503 393 21 LINKdotNET-AS, EG
36992 1332 1517 277 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1004 67 46 ORANGE-COTE-IVOIRE, CI
36935 885 520 42 Vodafone-, EG
6713 611 1861 34 IAM-AS, MA
15399 527 54 45 WANANCHI-, KE
24757 494 73 5 EthioNet-AS, ET
37342 494 32 1 MOVITEL, MZ
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 11032 3340 585 Uninet S.A. de C.V., MX
9808 9446 8884 50 CHINAMOBILE-CN China Mobile Communicati
16509 7809 10710 2912 AMAZON-02, US
12479 6966 1705 145 UNI2-AS, ES
9121 6117 1692 17 TTNET, TR
7545 5945 787 703 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4863 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4557 269 60 ALJAWWALSTC-AS, SA
11492 4530 300 601 CABLEONE, US
20940 4055 3399 179 AKAMAI-ASN1, NL
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 9446 9396 CHINAMOBILE-CN China Mobile Communications Grou
12479 6966 6821 UNI2-AS, ES
9121 6117 6100 TTNET, TR
7545 5945 5242 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 7809 4897 AMAZON-02, US
4538 4863 4788 ERX-CERNET-BKB China Education and Research Net
39891 4557 4497 ALJAWWALSTC-AS, SA
11492 4530 3929 CABLEONE, US
20940 4055 3876 AKAMAI-ASN1, NL
8551 3905 3867 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
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
398083 UNALLOCATED 5.133.124.0/24 399587 UT, US
33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US
16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US
16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US
25674 UNALLOCATED 8.12.76.0/24 3356 LEVEL3, US
16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US
25674 UNALLOCATED 8.14.115.0/24 3356 LEVEL3, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M
25674 UNALLOCATED 8.19.146.0/24 3356 LEVEL3, US
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, 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
23.131.185.0/24 Origin: 174 COGENT-174, US
23.131.185.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.186.0/24 Origin: 174 COGENT-174, US
23.131.186.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.187.0/24 Origin: 174 COGENT-174, US
23.131.187.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.188.0/24 Origin: 174 COGENT-174, US
23.131.188.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.136.112.0/24 Origin: 54835 UNASSIGNED
23.136.112.0/24 Transit: 21559 OSNET, PR
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 /9:13 /10:39 /11:101 /12:295
/13:582 /14:1201 /15:2039 /16:13491 /17:8321 /18:13921
/19:25219 /20:44355 /21:52331 /22:110280 /23:98380 /24:548060
/25:816 /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 6033 6966 UNI2-AS, ES
9121 5296 6117 TTNET, TR
8151 5046 11032 Uninet S.A. de C.V., MX
39891 3548 4557 ALJAWWALSTC-AS, SA
11492 3445 4530 CABLEONE, US
8551 3370 3905 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3307 3499 SHAW, CA
7155 2984 3895 VIASAT-SP-BACKBONE, US
22773 2725 3693 ASN-CXA-ALL-CCI-22773-RDC, US
47331 2413 2792 TTNET, TR
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1641 2:1236 3:168 4:5 5:4110 6:110
7:5 8:1562 9:1 11:172 12:1586 13:373
14:2372 15:286 16:79 17:371 18:421 20:243
21:4 22:188 23:6064 24:2488 25:4 27:2650
29:19 31:2500 32:99 34:9 35:106 36:1875
37:4600 38:4020 39:833 40:155 41:3957 42:1055
43:2318 44:303 45:16362 46:4196 47:382 49:1744
50:1929 51:379 52:1546 54:394 55:860 56:8
57:77 58:1745 59:1165 60:1007 61:2423 62:2623
63:1939 64:5658 65:2319 66:4909 67:3050 68:1345
69:4142 70:1254 71:661 72:2980 74:2592 75:1464
76:597 77:2386 78:3951 79:3167 80:2071 81:1828
82:1481 83:1233 84:1523 85:3716 86:746 87:1933
88:2885 89:3542 90:591 91:7631 92:1988 93:2592
94:3526 95:4863 96:1328 97:346 98:1163 99:740
100:75 101:1061 102:2511 103:30877 104:4595 105:483
106:847 107:2537 108:921 109:4356 110:2081 111:3339
112:2046 113:1556 114:1615 115:2042 116:1902 117:2562
118:2286 119:1912 120:1765 121:1114 122:2591 123:2156
124:1601 125:2351 128:1308 129:1062 130:967 131:1999
132:800 133:406 134:1907 135:298 136:886 137:927
138:2565 139:1546 140:1042 141:1485 142:1413 143:1481
144:1194 145:349 146:1854 147:1551 148:2293 149:1879
150:862 151:1135 152:1832 153:478 154:3932 155:1402
156:1655 157:1298 158:1048 159:2264 160:2557 161:1425
162:3523 163:1480 164:1612 165:1651 166:832 167:1742
168:3867 169:918 170:4582 171:886 172:3506 173:3000
174:1023 175:1159 176:3700 177:4748 178:3552 179:2152
180:2377 181:3376 182:3278 183:1932 184:2342 185:19977
186:4650 187:3925 188:4104 189:3497 190:9054 191:1428
192:10944 193:8825 194:7215 195:5117 196:3015 197:2408
198:5996 199:6094 200:7744 201:5858 202:10643 203:10040
204:4609 205:3519 206:3859 207:3421 208:4083 209:4817
210:4434 211:2503 212:4086 213:3567 214:1091 215:55
216:6610 217:2630 218:1279 219:567 220:2034 221:969
222:845 223:2060
End of report
More information about the sanog
mailing list