[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Oct 14 18:03:14 UTC 2022
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 15 Oct, 2022
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: 912340
Prefixes after maximum aggregation (per Origin AS): 344180
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 440144
Total ASes present in the Internet Routing Table: 73730
Prefixes per ASN: 12.37
Origin-only ASes present in the Internet Routing Table: 63304
Origin ASes announcing only one prefix: 25999
Transit ASes present in the Internet Routing Table: 10426
Transit-only ASes present in the Internet Routing Table: 401
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 55
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 1107
Number of instances of unregistered ASNs: 1111
Number of 32-bit ASNs allocated by the RIRs: 40378
Number of 32-bit ASNs visible in the Routing Table: 33509
Prefixes from 32-bit ASNs in the Routing Table: 161515
Number of bogon 32-bit ASNs visible in the Routing Table: 17
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 558
Number of addresses announced to Internet: 3064243328
Equivalent to 182 /8s, 164 /16s and 164 /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: 309744
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 238366
Total APNIC prefixes after maximum aggregation: 67845
APNIC Deaggregation factor: 3.51
Prefixes being announced from the APNIC address blocks: 233178
Unique aggregates announced from the APNIC address blocks: 96623
APNIC Region origin ASes present in the Internet Routing Table: 13030
APNIC Prefixes per ASN: 17.90
APNIC Region origin ASes announcing only one prefix: 3754
APNIC Region transit ASes present in the Internet Routing Table: 1757
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8273
Number of APNIC addresses announced to Internet: 773887232
Equivalent to 46 /8s, 32 /16s and 149 /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: 266403
Total ARIN prefixes after maximum aggregation: 121538
ARIN Deaggregation factor: 2.19
Prefixes being announced from the ARIN address blocks: 267553
Unique aggregates announced from the ARIN address blocks: 128610
ARIN Region origin ASes present in the Internet Routing Table: 19034
ARIN Prefixes per ASN: 14.06
ARIN Region origin ASes announcing only one prefix: 6929
ARIN Region transit ASes present in the Internet Routing Table: 1925
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4635
Number of ARIN addresses announced to Internet: 1289615104
Equivalent to 76 /8s, 221 /16s and 247 /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: 261568
Total RIPE prefixes after maximum aggregation: 120368
RIPE Deaggregation factor: 2.17
Prefixes being announced from the RIPE address blocks: 258541
Unique aggregates announced from the RIPE address blocks: 154045
RIPE Region origin ASes present in the Internet Routing Table: 28178
RIPE Prefixes per ASN: 9.18
RIPE Region origin ASes announcing only one prefix: 12021
RIPE Region transit ASes present in the Internet Routing Table: 3979
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 35
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10839
Number of RIPE addresses announced to Internet: 716498816
Equivalent to 42 /8s, 180 /16s and 231 /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: 116409
Total LACNIC prefixes after maximum aggregation: 28033
LACNIC Deaggregation factor: 4.15
Prefixes being announced from the LACNIC address blocks: 116001
Unique aggregates announced from the LACNIC address blocks: 48337
LACNIC Region origin ASes present in the Internet Routing Table: 10979
LACNIC Prefixes per ASN: 10.57
LACNIC Region origin ASes announcing only one prefix: 2698
LACNIC Region transit ASes present in the Internet Routing Table: 2248
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: 8739
Number of LACNIC addresses announced to Internet: 176010496
Equivalent to 10 /8s, 125 /16s and 181 /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: 28487
Total AfriNIC prefixes after maximum aggregation: 5575
AfriNIC Deaggregation factor: 5.11
Prefixes being announced from the AfriNIC address blocks: 36509
Unique aggregates announced from the AfriNIC address blocks: 12074
AfriNIC Region origin ASes present in the Internet Routing Table: 1693
AfriNIC Prefixes per ASN: 21.56
AfriNIC Region origin ASes announcing only one prefix: 597
AfriNIC Region transit ASes present in the Internet Routing Table: 325
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 30
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1023
Number of AfriNIC addresses announced to Internet: 107923200
Equivalent to 6 /8s, 110 /16s and 199 /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 9071 8884 50 CHINAMOBILE-CN China Mobile Communicati
7545 5928 786 694 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4723 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3592 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3506 1042 61 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3388 1877 66 VNPT-AS-VN VNPT Corp, VN
4766 2530 11252 600 KIXS-AS-KR Korea Telecom, KR
9498 2467 499 237 BBIL-AP BHARTI Airtel Ltd., IN
24560 2237 852 412 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
45090 2179 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 7342 10579 2894 AMAZON-02, US
11492 4603 305 518 CABLEONE, US
7155 3898 265 32 VIASAT-SP-BACKBONE, US
22773 3781 3066 355 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3547 1849 2541 AKAMAI-AS, US
6327 3491 1319 64 SHAW, CA
749 3028 50696 2295 DNIC-AS-00749, US
30036 2600 367 256 MEDIACOM-ENTERPRISE-BUSINESS, US
7018 2568 24150 1572 ATT-INTERNET4, US
396982 2552 3479 345 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 6885 1730 144 UNI2-AS, ES
9121 6830 1692 17 TTNET, TR
20940 4111 3400 182 AKAMAI-ASN1, NL
39891 4010 234 47 ALJAWWALSTC-AS, SA
8551 3991 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2947 2290 913 ROSTELECOM-AS, RU
9009 2621 252 1347 M247, RO
6849 2488 339 20 UKRTELNET, UA
34984 2243 357 616 TELLCOM-AS, TR
47331 2074 323 1578 TTNET, TR
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 10888 3339 596 Uninet S.A. de C.V., MX
10620 3470 510 844 Telmex Colombia S.A., CO
11830 2301 369 64 Instituto Costarricense de Electricidad
13999 2056 335 528 Mega Cable, S.A. de C.V., MX
28573 1351 2328 265 Claro NXT Telecomunicacoes Ltda, BR
6503 1294 338 520 Axtel, S.A.B. de C.V., MX
3816 1285 722 152 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11664 1088 181 463 Techtel LMDS Comunicaciones Interactiva
6147 1084 369 22 Telefonica del Peru S.A.A., PE
26615 986 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
24863 1569 393 21 LINKdotNET-AS, EG
24835 1518 521 31 RAYA-AS, EG
36992 1349 1519 270 ETISALAT-MISR, EG
36903 1260 550 99 MT-MPLS, MA
29571 1015 68 32 ORANGE-COTE-IVOIRE, CI
36935 815 520 42 Vodafone-, EG
6713 613 1863 34 IAM-AS, MA
15399 526 53 42 WANANCHI-, KE
37342 488 32 1 MOVITEL, MZ
23889 400 231 14 MauritiusTelecom, MU
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 10888 3339 596 Uninet S.A. de C.V., MX
9808 9071 8884 50 CHINAMOBILE-CN China Mobile Communicati
16509 7342 10579 2894 AMAZON-02, US
12479 6885 1730 144 UNI2-AS, ES
9121 6830 1692 17 TTNET, TR
7545 5928 786 694 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4723 4192 75 ERX-CERNET-BKB China Education and Rese
11492 4603 305 518 CABLEONE, US
20940 4111 3400 182 AKAMAI-ASN1, NL
39891 4010 234 47 ALJAWWALSTC-AS, SA
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 9071 9021 CHINAMOBILE-CN China Mobile Communications Grou
9121 6830 6813 TTNET, TR
12479 6885 6741 UNI2-AS, ES
7545 5928 5234 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4723 4648 ERX-CERNET-BKB China Education and Research Net
16509 7342 4448 AMAZON-02, US
11492 4603 4085 CABLEONE, US
39891 4010 3963 ALJAWWALSTC-AS, SA
8551 3991 3952 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
20940 4111 3929 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
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
23.133.252.0/24 Origin: 54681 ROSETEL, US
23.133.252.0/24 Transit: 50058 August Internet, GB
23.133.253.0/24 Origin: 54681 ROSETEL, US
23.133.253.0/24 Transit: 50058 August Internet, GB
23.133.254.0/24 Origin: 54681 ROSETEL, US
23.133.254.0/24 Transit: 50058 August Internet, GB
23.133.255.0/24 Origin: 54681 ROSETEL, US
23.133.255.0/24 Transit: 50058 August Internet, GB
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 /11:100 /12:294
/13:589 /14:1202 /15:2045 /16:13520 /17:8362 /18:13955
/19:25182 /20:44418 /21:52312 /22:109576 /23:97648 /24:542285
/25:784 /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
9121 5979 6830 TTNET, TR
12479 5895 6885 UNI2-AS, ES
8151 4774 10888 Uninet S.A. de C.V., MX
11492 3510 4603 CABLEONE, US
8551 3455 3991 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3300 3491 SHAW, CA
39891 3193 4010 ALJAWWALSTC-AS, SA
7155 2987 3898 VIASAT-SP-BACKBONE, US
22773 2787 3781 ASN-CXA-ALL-CCI-22773-RDC, US
6849 2345 2488 UKRTELNET, UA
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1910 2:1030 3:166 4:5 5:3940 6:116
7:6 8:1592 9:1 11:173 12:1623 13:338
14:2376 15:270 16:69 17:362 18:338 20:241
21:4 22:188 23:5958 24:2473 25:6 27:2664
29:19 31:2448 32:94 34:7 35:90 36:1867
37:4483 38:3639 39:753 40:159 41:3940 42:1181
43:2293 44:296 45:16213 46:4219 47:385 49:1721
50:1933 51:242 52:1489 54:383 55:842 56:8
57:77 58:1790 59:1159 60:990 61:2385 62:2544
63:1963 64:5627 65:2318 66:4853 67:2961 68:1320
69:4169 70:1305 71:679 72:2995 74:2654 75:1476
76:595 77:2239 78:3963 79:3145 80:2035 81:1810
82:1531 83:1221 84:1422 85:3733 86:729 87:1916
88:2838 89:3436 90:544 91:7595 92:2059 93:2549
94:3520 95:4783 96:1347 97:344 98:1166 99:737
100:78 101:1065 102:2331 103:30264 104:4554 105:474
106:887 107:2535 108:899 109:4347 110:2012 111:3323
112:2047 113:1552 114:1524 115:2021 116:1921 117:2483
118:2324 119:1854 120:1738 121:1081 122:2548 123:2112
124:1555 125:2188 128:1242 129:979 130:969 131:2014
132:829 133:377 134:1908 135:289 136:877 137:888
138:2535 139:1517 140:1122 141:1481 142:1385 143:1394
144:1198 145:348 146:1869 147:1538 148:2256 149:1793
150:879 151:1117 152:1831 153:469 154:3865 155:1423
156:1688 157:1292 158:1046 159:2177 160:2563 161:1370
162:3517 163:1424 164:1671 165:1652 166:812 167:1711
168:3805 169:882 170:4534 171:853 172:3454 173:3107
174:1026 175:1143 176:3581 177:4718 178:3551 179:2098
180:2339 181:3269 182:3248 183:1936 184:2355 185:19826
186:4553 187:3961 188:4048 189:3451 190:8996 191:1441
192:11005 193:8741 194:7158 195:5058 196:2975 197:2452
198:6018 199:6058 200:7623 201:5826 202:10551 203:10035
204:4562 205:3498 206:3892 207:3430 208:4097 209:4771
210:4337 211:2433 212:4049 213:3552 214:1090 215:53
216:6463 217:2611 218:1294 219:570 220:2044 221:924
222:824 223:2009
End of report
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