[cmNOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Feb 17 18:03:46 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 18 Feb, 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: 920998
Prefixes after maximum aggregation (per Origin AS): 348514
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 446349
Total ASes present in the Internet Routing Table: 74146
Prefixes per ASN: 12.42
Origin-only ASes present in the Internet Routing Table: 63618
Origin ASes announcing only one prefix: 26104
Transit ASes present in the Internet Routing Table: 10528
Transit-only ASes present in the Internet Routing Table: 443
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: 1061
Number of instances of unregistered ASNs: 1071
Number of 32-bit ASNs allocated by the RIRs: 41203
Number of 32-bit ASNs visible in the Routing Table: 34191
Prefixes from 32-bit ASNs in the Routing Table: 167381
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: 589
Number of addresses announced to Internet: 3063279232
Equivalent to 182 /8s, 149 /16s and 238 /24s
Percentage of available address space announced: 82.7
Percentage of allocated address space announced: 82.7
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: 312783
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 241118
Total APNIC prefixes after maximum aggregation: 69086
APNIC Deaggregation factor: 3.49
Prefixes being announced from the APNIC address blocks: 235992
Unique aggregates announced from the APNIC address blocks: 97957
APNIC Region origin ASes present in the Internet Routing Table: 13308
APNIC Prefixes per ASN: 17.73
APNIC Region origin ASes announcing only one prefix: 3861
APNIC Region transit ASes present in the Internet Routing Table: 1781
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8581
Number of APNIC addresses announced to Internet: 773670912
Equivalent to 46 /8s, 29 /16s and 72 /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: 267489
Total ARIN prefixes after maximum aggregation: 121496
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 269494
Unique aggregates announced from the ARIN address blocks: 130285
ARIN Region origin ASes present in the Internet Routing Table: 19064
ARIN Prefixes per ASN: 14.14
ARIN Region origin ASes announcing only one prefix: 6961
ARIN Region transit ASes present in the Internet Routing Table: 1958
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: 4737
Number of ARIN addresses announced to Internet: 1286207232
Equivalent to 76 /8s, 169 /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: 264849
Total RIPE prefixes after maximum aggregation: 122896
RIPE Deaggregation factor: 2.16
Prefixes being announced from the RIPE address blocks: 261359
Unique aggregates announced from the RIPE address blocks: 156643
RIPE Region origin ASes present in the Internet Routing Table: 28233
RIPE Prefixes per ASN: 9.26
RIPE Region origin ASes announcing only one prefix: 12037
RIPE Region transit ASes present in the Internet Routing Table: 3961
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: 11029
Number of RIPE addresses announced to Internet: 718495360
Equivalent to 42 /8s, 211 /16s and 94 /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: 117347
Total LACNIC prefixes after maximum aggregation: 28511
LACNIC Deaggregation factor: 4.12
Prefixes being announced from the LACNIC address blocks: 116612
Unique aggregates announced from the LACNIC address blocks: 48926
LACNIC Region origin ASes present in the Internet Routing Table: 10969
LACNIC Prefixes per ASN: 10.63
LACNIC Region origin ASes announcing only one prefix: 2647
LACNIC Region transit ASes present in the Internet Routing Table: 2278
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: 8779
Number of LACNIC addresses announced to Internet: 176456448
Equivalent to 10 /8s, 132 /16s and 131 /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: 29134
Total AfriNIC prefixes after maximum aggregation: 5752
AfriNIC Deaggregation factor: 5.07
Prefixes being announced from the AfriNIC address blocks: 36952
Unique aggregates announced from the AfriNIC address blocks: 12080
AfriNIC Region origin ASes present in the Internet Routing Table: 1722
AfriNIC Prefixes per ASN: 21.46
AfriNIC Region origin ASes announcing only one prefix: 598
AfriNIC Region transit ASes present in the Internet Routing Table: 335
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1065
Number of AfriNIC addresses announced to Internet: 108095744
Equivalent to 6 /8s, 113 /16s and 105 /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 9453 8884 51 CHINAMOBILE-CN China Mobile Communicati
7545 5819 787 693 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4860 4192 75 ERX-CERNET-BKB China Education and Rese
7713 3531 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon
7552 3430 1331 21 VIETEL-AS-AP Viettel Group, VN
45899 3381 1874 96 VNPT-AS-VN VNPT Corp, VN
9498 2775 499 238 BBIL-AP BHARTI Airtel Ltd., IN
4766 2531 11251 591 KIXS-AS-KR Korea Telecom, KR
24560 2355 836 442 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
45090 2184 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 7968 10732 2865 AMAZON-02, US
11492 4535 300 597 CABLEONE, US
7155 3962 279 45 VIASAT-SP-BACKBONE, US
22773 3654 3063 287 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3503 1320 63 SHAW, CA
16625 3307 1668 2421 AKAMAI-AS, US
749 3036 50571 2303 DNIC-AS-00749, US
396982 2605 3583 352 GOOGLE-CLOUD-PLATFORM, US
7018 2598 24143 1576 ATT-INTERNET4, US
30036 2555 366 365 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 7075 1706 146 UNI2-AS, ES
9121 5939 1692 17 TTNET, TR
39891 4561 269 58 ALJAWWALSTC-AS, SA
20940 4005 3399 175 AKAMAI-ASN1, NL
8551 3893 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2951 2292 911 ROSTELECOM-AS, RU
9009 2653 253 1377 M247, RO
47331 2474 378 1865 TTNET, TR
34984 2264 359 608 TELLCOM-AS, TR
6849 2256 339 19 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 11135 3348 587 Uninet S.A. de C.V., MX
10620 3476 507 862 Telmex Colombia S.A., CO
11830 2258 369 64 Instituto Costarricense de Electricidad
13999 2257 375 606 Mega Cable, S.A. de C.V., MX
28573 1349 2328 261 Claro NXT Telecomunicacoes Ltda, BR
6503 1297 339 517 Axtel, S.A.B. de C.V., MX
3816 1292 746 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1151 370 22 Telefonica del Peru S.A.A., PE
11664 1099 180 456 Techtel LMDS Comunicaciones Interactiva
26615 1019 2498 45 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 1542 533 30 RAYA-AS, EG
24863 1495 393 21 LINKdotNET-AS, EG
36992 1348 1517 277 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1000 67 53 ORANGE-COTE-IVOIRE, CI
36935 886 520 42 Vodafone-, EG
6713 549 1861 34 IAM-AS, MA
15399 526 54 46 WANANCHI-, KE
24757 497 73 5 EthioNet-AS, ET
37342 488 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 11135 3348 587 Uninet S.A. de C.V., MX
9808 9453 8884 51 CHINAMOBILE-CN China Mobile Communicati
16509 7968 10732 2865 AMAZON-02, US
12479 7075 1706 146 UNI2-AS, ES
9121 5939 1692 17 TTNET, TR
7545 5819 787 693 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4860 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4561 269 58 ALJAWWALSTC-AS, SA
11492 4535 300 597 CABLEONE, US
20940 4005 3399 175 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 9453 9402 CHINAMOBILE-CN China Mobile Communications Grou
12479 7075 6929 UNI2-AS, ES
9121 5939 5922 TTNET, TR
7545 5819 5126 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 7968 5103 AMAZON-02, US
4538 4860 4785 ERX-CERNET-BKB China Education and Research Net
39891 4561 4503 ALJAWWALSTC-AS, SA
11492 4535 3938 CABLEONE, US
7155 3962 3917 VIASAT-SP-BACKBONE, US
8551 3893 3856 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
3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V.,
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
16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US
1618 UNALLOCATED 8.21.143.0/24 136796 CL-JP-AS CORELINK JAPAN, JP
393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, 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 /11:103 /12:299
/13:580 /14:1202 /15:2039 /16:13479 /17:8292 /18:13862
/19:25220 /20:44334 /21:52315 /22:110409 /23:98277 /24:549699
/25:820 /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 6135 7075 UNI2-AS, ES
8151 5140 11135 Uninet S.A. de C.V., MX
9121 5117 5939 TTNET, TR
39891 3552 4561 ALJAWWALSTC-AS, SA
11492 3451 4535 CABLEONE, US
8551 3365 3893 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3311 3503 SHAW, CA
7155 3037 3962 VIASAT-SP-BACKBONE, US
22773 2704 3654 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2212 2555 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1683 2:1239 3:168 4:5 5:4333 6:114
7:5 8:1551 9:1 11:172 12:1586 13:383
14:2346 15:293 16:103 17:366 18:397 20:248
21:4 22:188 23:6057 24:2499 25:4 27:2516
29:19 31:2498 32:107 34:9 35:106 36:1905
37:4638 38:4163 39:841 40:153 41:4038 42:1071
43:2338 44:303 45:16390 46:4220 47:382 49:1749
50:1834 51:383 52:1575 54:397 55:852 56:8
57:87 58:1743 59:1167 60:985 61:2439 62:2632
63:1931 64:5671 65:2326 66:4931 67:3047 68:1348
69:4155 70:1264 71:661 72:2991 74:2602 75:1458
76:607 77:2408 78:3827 79:3172 80:2079 81:1859
82:1495 83:1245 84:1528 85:3704 86:758 87:1972
88:2783 89:3616 90:609 91:7673 92:2011 93:2598
94:3530 95:4838 96:1334 97:346 98:1161 99:744
100:75 101:1065 102:2566 103:30964 104:4570 105:485
106:855 107:2525 108:918 109:4396 110:2083 111:3331
112:2044 113:1550 114:1617 115:2023 116:1903 117:2542
118:2292 119:1943 120:1769 121:1115 122:2601 123:2187
124:1605 125:2406 128:1322 129:1073 130:997 131:1986
132:798 133:411 134:1908 135:297 136:861 137:931
138:2557 139:1545 140:1182 141:1478 142:1424 143:1476
144:1211 145:347 146:1877 147:1558 148:2288 149:1905
150:867 151:1141 152:1843 153:481 154:3934 155:1420
156:1679 157:1298 158:1007 159:2264 160:2540 161:1450
162:3545 163:1539 164:1593 165:1673 166:855 167:1719
168:3848 169:923 170:4582 171:885 172:3498 173:2977
174:1034 175:1163 176:3735 177:4568 178:3579 179:2151
180:2377 181:3405 182:3288 183:1933 184:2341 185:20047
186:4648 187:3964 188:4140 189:3526 190:9129 191:1452
192:10944 193:8832 194:7259 195:5119 196:3056 197:2401
198:5953 199:6101 200:7743 201:5877 202:10659 203:10022
204:4608 205:3529 206:3856 207:3445 208:4083 209:4844
210:4452 211:2501 212:4127 213:3560 214:1093 215:55
216:6605 217:2641 218:1278 219:573 220:2018 221:973
222:866 223:2148
End of report
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