[cmNOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Apr 7 18:03:36 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 08 Apr, 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: 917911
Prefixes after maximum aggregation (per Origin AS): 348250
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 447962
Total ASes present in the Internet Routing Table: 74298
Prefixes per ASN: 12.35
Origin-only ASes present in the Internet Routing Table: 63737
Origin ASes announcing only one prefix: 26192
Transit ASes present in the Internet Routing Table: 10561
Transit-only ASes present in the Internet Routing Table: 448
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: 1103
Number of instances of unregistered ASNs: 1103
Number of 32-bit ASNs allocated by the RIRs: 41624
Number of 32-bit ASNs visible in the Routing Table: 34433
Prefixes from 32-bit ASNs in the Routing Table: 169845
Number of bogon 32-bit ASNs visible in the Routing Table: 56
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 713
Number of addresses announced to Internet: 3062021376
Equivalent to 182 /8s, 130 /16s and 189 /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: 307012
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 242441
Total APNIC prefixes after maximum aggregation: 69292
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 236823
Unique aggregates announced from the APNIC address blocks: 97741
APNIC Region origin ASes present in the Internet Routing Table: 13397
APNIC Prefixes per ASN: 17.68
APNIC Region origin ASes announcing only one prefix: 3937
APNIC Region transit ASes present in the Internet Routing Table: 1808
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8686
Number of APNIC addresses announced to Internet: 773675648
Equivalent to 46 /8s, 29 /16s and 90 /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: 268778
Total ARIN prefixes after maximum aggregation: 122061
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 271173
Unique aggregates announced from the ARIN address blocks: 130691
ARIN Region origin ASes present in the Internet Routing Table: 19085
ARIN Prefixes per ASN: 14.21
ARIN Region origin ASes announcing only one prefix: 6975
ARIN Region transit ASes present in the Internet Routing Table: 1959
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4781
Number of ARIN addresses announced to Internet: 1285572096
Equivalent to 76 /8s, 160 /16s and 70 /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: 258784
Total RIPE prefixes after maximum aggregation: 121878
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 254754
Unique aggregates announced from the RIPE address blocks: 157516
RIPE Region origin ASes present in the Internet Routing Table: 28287
RIPE Prefixes per ASN: 9.01
RIPE Region origin ASes announcing only one prefix: 12034
RIPE Region transit ASes present in the Internet Routing Table: 3968
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11116
Number of RIPE addresses announced to Internet: 717837184
Equivalent to 42 /8s, 201 /16s and 83 /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: 117557
Total LACNIC prefixes after maximum aggregation: 28483
LACNIC Deaggregation factor: 4.13
Prefixes being announced from the LACNIC address blocks: 116872
Unique aggregates announced from the LACNIC address blocks: 49120
LACNIC Region origin ASes present in the Internet Routing Table: 10968
LACNIC Prefixes per ASN: 10.66
LACNIC Region origin ASes announcing only one prefix: 2644
LACNIC Region transit ASes present in the Internet Routing Table: 2289
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: 8773
Number of LACNIC addresses announced to Internet: 176705536
Equivalent to 10 /8s, 136 /16s and 80 /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: 29248
Total AfriNIC prefixes after maximum aggregation: 5772
AfriNIC Deaggregation factor: 5.07
Prefixes being announced from the AfriNIC address blocks: 37576
Unique aggregates announced from the AfriNIC address blocks: 12283
AfriNIC Region origin ASes present in the Internet Routing Table: 1729
AfriNIC Prefixes per ASN: 21.73
AfriNIC Region origin ASes announcing only one prefix: 602
AfriNIC Region transit ASes present in the Internet Routing Table: 333
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 40
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1077
Number of AfriNIC addresses announced to Internet: 107769344
Equivalent to 6 /8s, 108 /16s and 110 /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 9492 8884 51 CHINAMOBILE-CN China Mobile Communicati
7545 5744 786 689 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4865 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3563 1331 21 VIETEL-AS-AP Viettel Group, VN
7713 3546 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3383 1872 93 VNPT-AS-VN VNPT Corp, VN
9498 2901 491 237 BBIL-AP BHARTI Airtel Ltd., IN
4766 2555 11252 592 KIXS-AS-KR Korea Telecom, KR
24560 2363 835 442 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 8269 10783 2879 AMAZON-02, US
11492 4541 301 610 CABLEONE, US
7155 3967 279 48 VIASAT-SP-BACKBONE, US
22773 3608 3057 281 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3514 1320 64 SHAW, CA
16625 3160 1589 2342 AKAMAI-AS, US
749 3054 50541 2321 DNIC-AS-00749, US
396982 2631 3590 363 GOOGLE-CLOUD-PLATFORM, US
7018 2565 24118 1562 ATT-INTERNET4, US
30036 2488 359 526 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 7244 1705 149 UNI2-AS, ES
39891 4833 286 59 ALJAWWALSTC-AS, SA
20940 4058 3399 164 AKAMAI-ASN1, NL
8551 3885 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2954 2292 911 ROSTELECOM-AS, RU
9009 2646 248 1379 M247, RO
34984 2272 359 611 TELLCOM-AS, TR
6849 2076 307 18 UKRTELNET, UA
58224 1850 950 543 TCI, IR
13188 1606 100 26 TRIOLAN, 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 11211 3343 578 Uninet S.A. de C.V., MX
10620 3499 506 850 Telmex Colombia S.A., CO
13999 2311 370 610 Mega Cable, S.A. de C.V., MX
11830 2264 369 64 Instituto Costarricense de Electricidad
28573 1332 2325 235 Claro NXT Telecomunicacoes Ltda, BR
3816 1303 767 159 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1299 339 514 Axtel, S.A.B. de C.V., MX
6147 1131 370 22 Telefonica del Peru S.A.A., PE
11664 1101 180 446 Techtel LMDS Comunicaciones Interactiva
26615 1030 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
24863 1576 393 19 LINKdotNET-AS, EG
24835 1541 533 30 RAYA-AS, EG
36992 1356 1518 275 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1016 67 48 ORANGE-COTE-IVOIRE, CI
36935 872 520 42 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
15399 532 54 47 WANANCHI-, KE
37342 493 32 1 MOVITEL, MZ
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 11211 3343 578 Uninet S.A. de C.V., MX
9808 9492 8884 51 CHINAMOBILE-CN China Mobile Communicati
16509 8269 10783 2879 AMAZON-02, US
12479 7244 1705 149 UNI2-AS, ES
7545 5744 786 689 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4865 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4833 286 59 ALJAWWALSTC-AS, SA
11492 4541 301 610 CABLEONE, US
20940 4058 3399 164 AKAMAI-ASN1, NL
7155 3967 279 48 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 9492 9441 CHINAMOBILE-CN China Mobile Communications Grou
12479 7244 7095 UNI2-AS, ES
16509 8269 5390 AMAZON-02, US
7545 5744 5055 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4865 4790 ERX-CERNET-BKB China Education and Research Net
39891 4833 4774 ALJAWWALSTC-AS, SA
11492 4541 3931 CABLEONE, US
7155 3967 3919 VIASAT-SP-BACKBONE, US
20940 4058 3894 AKAMAI-ASN1, NL
8551 3885 3848 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
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
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
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
18798 UNALLOCATED 8.40.106.0/24 6461 ZAYO-6461, 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
/13:578 /14:1198 /15:2036 /16:13471 /17:8269 /18:13858
/19:25180 /20:44264 /21:51593 /22:109702 /23:97592 /24:548972
/25:728 /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 6305 7244 UNI2-AS, ES
8151 5175 11211 Uninet S.A. de C.V., MX
39891 3632 4833 ALJAWWALSTC-AS, SA
11492 3449 4541 CABLEONE, US
8551 3357 3885 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3323 3514 SHAW, CA
7155 3039 3967 VIASAT-SP-BACKBONE, US
22773 2675 3608 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2145 2488 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2053 3499 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1703 2:1237 3:172 4:5 5:4485 6:122
7:6 8:1548 9:1 11:172 12:1558 13:394
14:2310 15:299 16:185 17:371 18:417 20:248
21:4 22:188 23:6158 24:2578 25:6 27:2491
29:19 31:2524 32:97 34:10 35:107 36:1918
37:4644 38:4453 39:805 40:151 41:3959 42:987
43:2345 44:308 45:16542 46:4238 47:363 49:1758
50:1837 51:571 52:1595 54:389 55:855 56:8
57:90 58:1756 59:1128 60:978 61:2444 62:2648
63:1923 64:5689 65:2327 66:4946 67:3020 68:1375
69:4154 70:1255 71:671 72:2974 74:2615 75:1464
76:610 77:2433 78:1863 79:3163 80:2096 81:1745
82:1485 83:1279 84:1533 85:2992 86:747 87:2003
88:1240 89:3626 90:614 91:7687 92:2058 93:2616
94:3598 95:3996 96:1328 97:336 98:1157 99:745
100:73 101:1069 102:2646 103:31259 104:4640 105:483
106:906 107:2507 108:1022 109:4418 110:2079 111:3233
112:2054 113:1563 114:1640 115:2028 116:1933 117:2559
118:2284 119:2023 120:1798 121:1109 122:2624 123:2188
124:1615 125:2537 128:1312 129:1063 130:1002 131:1986
132:801 133:422 134:1902 135:305 136:839 137:945
138:2549 139:1538 140:1234 141:1458 142:1432 143:1499
144:1165 145:346 146:1936 147:1572 148:2345 149:2009
150:870 151:1155 152:1843 153:489 154:4411 155:1421
156:1801 157:1301 158:1054 159:2280 160:2537 161:1532
162:3526 163:1504 164:1592 165:1713 166:1004 167:1717
168:3883 169:939 170:4605 171:880 172:3536 173:2934
174:1072 175:1154 176:3682 177:4546 178:3628 179:2145
180:2410 181:3435 182:3376 183:1929 184:2353 185:20177
186:4678 187:3945 188:4117 189:3559 190:9158 191:1447
192:10923 193:8851 194:7300 195:5152 196:3085 197:2377
198:5966 199:6088 200:7895 201:5878 202:10672 203:10223
204:4623 205:3540 206:4127 207:3457 208:4103 209:4894
210:4433 211:2496 212:4101 213:3573 214:1083 215:59
216:6622 217:2681 218:1295 219:576 220:2018 221:973
222:890 223:2182
End of report
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