[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Sep 23 18:03:05 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 24 Sep, 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: 910003
Prefixes after maximum aggregation (per Origin AS): 343475
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 439705
Total ASes present in the Internet Routing Table: 73701
Prefixes per ASN: 12.35
Origin-only ASes present in the Internet Routing Table: 63292
Origin ASes announcing only one prefix: 26051
Transit ASes present in the Internet Routing Table: 10409
Transit-only ASes present in the Internet Routing Table: 410
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: 1054
Number of instances of unregistered ASNs: 1055
Number of 32-bit ASNs allocated by the RIRs: 40223
Number of 32-bit ASNs visible in the Routing Table: 33403
Prefixes from 32-bit ASNs in the Routing Table: 160413
Number of bogon 32-bit ASNs visible in the Routing Table: 11
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 541
Number of addresses announced to Internet: 3067455872
Equivalent to 182 /8s, 213 /16s and 169 /24s
Percentage of available address space announced: 82.9
Percentage of allocated address space announced: 82.9
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: 308917
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 237587
Total APNIC prefixes after maximum aggregation: 67618
APNIC Deaggregation factor: 3.51
Prefixes being announced from the APNIC address blocks: 232518
Unique aggregates announced from the APNIC address blocks: 96299
APNIC Region origin ASes present in the Internet Routing Table: 12969
APNIC Prefixes per ASN: 17.93
APNIC Region origin ASes announcing only one prefix: 3747
APNIC Region transit ASes present in the Internet Routing Table: 1755
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: 8208
Number of APNIC addresses announced to Internet: 773308672
Equivalent to 46 /8s, 23 /16s and 193 /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: 265460
Total ARIN prefixes after maximum aggregation: 121652
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 266181
Unique aggregates announced from the ARIN address blocks: 128292
ARIN Region origin ASes present in the Internet Routing Table: 19058
ARIN Prefixes per ASN: 13.97
ARIN Region origin ASes announcing only one prefix: 6955
ARIN Region transit ASes present in the Internet Routing Table: 1923
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 33
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4621
Number of ARIN addresses announced to Internet: 1291873792
Equivalent to 77 /8s, 0 /16s and 110 /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: 260949
Total RIPE prefixes after maximum aggregation: 119907
RIPE Deaggregation factor: 2.18
Prefixes being announced from the RIPE address blocks: 258179
Unique aggregates announced from the RIPE address blocks: 153773
RIPE Region origin ASes present in the Internet Routing Table: 28193
RIPE Prefixes per ASN: 9.16
RIPE Region origin ASes announcing only one prefix: 12049
RIPE Region transit ASes present in the Internet Routing Table: 3990
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10819
Number of RIPE addresses announced to Internet: 718004096
Equivalent to 42 /8s, 203 /16s and 223 /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: 116503
Total LACNIC prefixes after maximum aggregation: 27926
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 116137
Unique aggregates announced from the LACNIC address blocks: 49010
LACNIC Region origin ASes present in the Internet Routing Table: 10977
LACNIC Prefixes per ASN: 10.58
LACNIC Region origin ASes announcing only one prefix: 2703
LACNIC Region transit ASes present in the Internet Routing Table: 2222
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 55
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8733
Number of LACNIC addresses announced to Internet: 176147456
Equivalent to 10 /8s, 127 /16s and 204 /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: 28450
Total AfriNIC prefixes after maximum aggregation: 5576
AfriNIC Deaggregation factor: 5.10
Prefixes being announced from the AfriNIC address blocks: 36447
Unique aggregates announced from the AfriNIC address blocks: 11884
AfriNIC Region origin ASes present in the Internet Routing Table: 1693
AfriNIC Prefixes per ASN: 21.53
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: 37
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1022
Number of AfriNIC addresses announced to Internet: 107835904
Equivalent to 6 /8s, 109 /16s and 114 /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 9068 8884 50 CHINAMOBILE-CN China Mobile Communicati
7545 5884 786 695 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4720 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3583 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3497 1042 61 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3375 1870 59 VNPT-AS-VN VNPT Corp, VN
4766 2470 11124 602 KIXS-AS-KR Korea Telecom, KR
9498 2447 499 237 BBIL-AP BHARTI Airtel Ltd., IN
24560 2221 854 414 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
45090 2180 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 7220 10536 2833 AMAZON-02, US
11492 4546 301 591 CABLEONE, US
7155 3898 265 32 VIASAT-SP-BACKBONE, US
22773 3784 3063 349 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3531 1841 2536 AKAMAI-AS, US
6327 3479 1319 64 SHAW, CA
749 3033 50728 2291 DNIC-AS-00749, US
30036 2608 369 263 MEDIACOM-ENTERPRISE-BUSINESS, US
396982 2536 3387 368 GOOGLE-CLOUD-PLATFORM, US
209 2350 4935 395 CENTURYLINK-US-LEGACY-QWEST, 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 6905 1730 144 UNI2-AS, ES
9121 6877 1692 17 TTNET, TR
20940 4062 3348 216 AKAMAI-ASN1, NL
39891 4010 234 47 ALJAWWALSTC-AS, SA
8551 3988 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2943 2290 911 ROSTELECOM-AS, RU
9009 2604 251 1339 M247, GB
6849 2590 339 20 UKRTELNET, UA
34984 2257 358 633 TELLCOM-AS, TR
47331 1994 313 1508 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 10975 3391 562 Uninet S.A. de C.V., MX
10620 3506 515 788 Telmex Colombia S.A., CO
11830 2321 369 65 Instituto Costarricense de Electricidad
13999 2008 328 515 Mega Cable, S.A. de C.V., MX
28573 1348 2328 264 Claro NXT Telecomunicacoes Ltda, BR
6503 1292 338 520 Axtel, S.A.B. de C.V., MX
3816 1278 708 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1137 369 21 Telefonica del Peru S.A.A., PE
11664 1059 179 466 Techtel LMDS Comunicaciones Interactiva
26615 987 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 1584 393 21 LINKdotNET-AS, EG
24835 1520 521 31 RAYA-AS, EG
36992 1349 1519 270 ETISALAT-MISR, EG
36903 1268 550 99 MT-MPLS, MA
29571 997 68 32 ORANGE-COTE-IVOIRE, CI
36935 814 520 42 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 522 52 40 WANANCHI-, KE
37342 481 32 1 MOVITEL, MZ
23889 402 232 16 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 10975 3391 562 Uninet S.A. de C.V., MX
9808 9068 8884 50 CHINAMOBILE-CN China Mobile Communicati
16509 7220 10536 2833 AMAZON-02, US
12479 6905 1730 144 UNI2-AS, ES
9121 6877 1692 17 TTNET, TR
7545 5884 786 695 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4720 4192 75 ERX-CERNET-BKB China Education and Rese
11492 4546 301 591 CABLEONE, US
20940 4062 3348 216 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 9068 9018 CHINAMOBILE-CN China Mobile Communications Grou
9121 6877 6860 TTNET, TR
12479 6905 6761 UNI2-AS, ES
7545 5884 5189 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4720 4645 ERX-CERNET-BKB China Education and Research Net
16509 7220 4387 AMAZON-02, US
39891 4010 3963 ALJAWWALSTC-AS, SA
11492 4546 3955 CABLEONE, US
8551 3988 3950 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7155 3898 3866 VIASAT-SP-BACKBONE, US
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
25674 UNALLOCATED 8.12.76.0/24 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
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US
393266 UNALLOCATED 8.23.52.0/24 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
23.141.0.0/24 Origin: 395350 UNASSIGNED
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
27.100.7.0/24 Origin: 56096 UNASSIGNED
27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
41.57.124.0/22 Origin: 37442 UNASSIGNED
41.57.124.0/22 Transit: 37204 TELONE, ZW
41.57.124.0/23 Origin: 37442 UNASSIGNED
41.57.124.0/23 Transit: 37204 TELONE, ZW
41.57.124.0/24 Origin: 37442 UNASSIGNED
41.57.124.0/24 Transit: 37204 TELONE, ZW
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 /12:297
/13:589 /14:1203 /15:2061 /16:13505 /17:8342 /18:13943
/19:25165 /20:44438 /21:52395 /22:109415 /23:97455 /24:540221
/25:805 /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 6022 6877 TTNET, TR
12479 5909 6905 UNI2-AS, ES
8151 4720 10975 Uninet S.A. de C.V., MX
11492 3466 4546 CABLEONE, US
8551 3452 3988 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3288 3479 SHAW, CA
39891 3193 4010 ALJAWWALSTC-AS, SA
7155 2987 3898 VIASAT-SP-BACKBONE, US
22773 2805 3784 ASN-CXA-ALL-CCI-22773-RDC, US
6849 2445 2590 UKRTELNET, UA
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1917 2:1020 3:163 4:5 5:3893 6:116
7:6 8:1600 9:1 11:173 12:1627 13:345
14:2372 15:263 16:60 17:362 18:318 20:240
21:4 22:188 23:5954 24:2456 25:6 27:2660
29:19 31:2423 32:94 34:7 35:89 36:1865
37:4475 38:3560 39:750 40:155 41:3911 42:1167
43:2245 44:290 45:16203 46:4191 47:309 48:1
49:1733 50:1933 51:242 52:1492 54:387 55:843
56:8 57:68 58:1794 59:1163 60:979 61:2354
62:2545 63:1914 64:5610 65:2315 66:4902 67:2974
68:1203 69:4178 70:1313 71:686 72:2993 74:2656
75:1488 76:594 77:2267 78:3997 79:3135 80:2062
81:1794 82:1510 83:1210 84:1397 85:3728 86:730
87:1914 88:2828 89:3405 90:554 91:7579 92:2060
93:2545 94:3550 95:4799 96:1311 97:347 98:1035
99:722 100:75 101:1065 102:2325 103:30019 104:4573
105:472 106:886 107:2528 108:896 109:4310 110:1995
111:3322 112:2040 113:1539 114:1500 115:2008 116:1912
117:2482 118:2327 119:1841 120:1737 121:1085 122:2536
123:2103 124:1555 125:2169 128:1223 129:1019 130:1000
131:2042 132:823 133:378 134:1937 135:293 136:766
137:880 138:2536 139:1513 140:991 141:1452 142:1351
143:1396 144:1193 145:346 146:1861 147:1523 148:2229
149:1815 150:869 151:1101 152:1819 153:469 154:3775
155:1425 156:1701 157:1282 158:1047 159:2196 160:2531
161:1343 162:3496 163:1400 164:1675 165:1650 166:789
167:1727 168:3840 169:875 170:4531 171:847 172:3368
173:3105 174:1021 175:1154 176:3626 177:4702 178:3567
179:2144 180:2335 181:3290 182:3231 183:1922 184:2361
185:19755 186:4549 187:3919 188:4014 189:3465 190:8986
191:1422 192:10992 193:8688 194:7140 195:5054 196:2970
197:2458 198:5976 199:6033 200:7683 201:5798 202:10548
203:10033 204:4521 205:3491 206:3877 207:3425 208:4054
209:4737 210:4339 211:2448 212:4087 213:3465 214:1116
215:54 216:6416 217:2637 218:1284 219:567 220:2036
221:922 222:827 223:2005
End of report
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