[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Dec 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 Dec, 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: 917301
Prefixes after maximum aggregation (per Origin AS): 346961
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 444192
Total ASes present in the Internet Routing Table: 73978
Prefixes per ASN: 12.40
Origin-only ASes present in the Internet Routing Table: 63487
Origin ASes announcing only one prefix: 26133
Transit ASes present in the Internet Routing Table: 10491
Transit-only ASes present in the Internet Routing Table: 427
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: 999
Number of instances of unregistered ASNs: 1008
Number of 32-bit ASNs allocated by the RIRs: 40962
Number of 32-bit ASNs visible in the Routing Table: 33921
Prefixes from 32-bit ASNs in the Routing Table: 165300
Number of bogon 32-bit ASNs visible in the Routing Table: 28
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 515
Number of addresses announced to Internet: 3066232832
Equivalent to 182 /8s, 195 /16s and 0 /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: 311651
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 239767
Total APNIC prefixes after maximum aggregation: 68430
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 234633
Unique aggregates announced from the APNIC address blocks: 97437
APNIC Region origin ASes present in the Internet Routing Table: 13190
APNIC Prefixes per ASN: 17.79
APNIC Region origin ASes announcing only one prefix: 3856
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: 25
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8446
Number of APNIC addresses announced to Internet: 773768320
Equivalent to 46 /8s, 30 /16s and 196 /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: 267514
Total ARIN prefixes after maximum aggregation: 121704
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 268966
Unique aggregates announced from the ARIN address blocks: 129578
ARIN Region origin ASes present in the Internet Routing Table: 19050
ARIN Prefixes per ASN: 14.12
ARIN Region origin ASes announcing only one prefix: 6966
ARIN Region transit ASes present in the Internet Routing Table: 1952
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4706
Number of ARIN addresses announced to Internet: 1288525824
Equivalent to 76 /8s, 205 /16s and 88 /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: 263138
Total RIPE prefixes after maximum aggregation: 121987
RIPE Deaggregation factor: 2.16
Prefixes being announced from the RIPE address blocks: 260049
Unique aggregates announced from the RIPE address blocks: 155767
RIPE Region origin ASes present in the Internet Routing Table: 28197
RIPE Prefixes per ASN: 9.22
RIPE Region origin ASes announcing only one prefix: 12038
RIPE Region transit ASes present in the Internet Routing Table: 3958
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: 10942
Number of RIPE addresses announced to Internet: 719480192
Equivalent to 42 /8s, 226 /16s and 101 /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: 117498
Total LACNIC prefixes after maximum aggregation: 28397
LACNIC Deaggregation factor: 4.14
Prefixes being announced from the LACNIC address blocks: 116798
Unique aggregates announced from the LACNIC address blocks: 48974
LACNIC Region origin ASes present in the Internet Routing Table: 11008
LACNIC Prefixes per ASN: 10.61
LACNIC Region origin ASes announcing only one prefix: 2673
LACNIC Region transit ASes present in the Internet Routing Table: 2280
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: 8774
Number of LACNIC addresses announced to Internet: 176038656
Equivalent to 10 /8s, 126 /16s and 35 /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: 28385
Total AfriNIC prefixes after maximum aggregation: 5689
AfriNIC Deaggregation factor: 4.99
Prefixes being announced from the AfriNIC address blocks: 36340
Unique aggregates announced from the AfriNIC address blocks: 12020
AfriNIC Region origin ASes present in the Internet Routing Table: 1714
AfriNIC Prefixes per ASN: 21.20
AfriNIC Region origin ASes announcing only one prefix: 600
AfriNIC Region transit ASes present in the Internet Routing Table: 330
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 37
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1053
Number of AfriNIC addresses announced to Internet: 108124672
Equivalent to 6 /8s, 113 /16s and 218 /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 9170 8884 50 CHINAMOBILE-CN China Mobile Communicati
7545 5943 787 703 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4860 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3625 1331 21 VIETEL-AS-AP Viettel Group, VN
7713 3504 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3371 1874 95 VNPT-AS-VN VNPT Corp, VN
9498 2679 499 238 BBIL-AP BHARTI Airtel Ltd., IN
4766 2529 11251 594 KIXS-AS-KR Korea Telecom, KR
24560 2349 849 437 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 7764 10639 2927 AMAZON-02, US
11492 4539 301 581 CABLEONE, US
7155 3894 265 33 VIASAT-SP-BACKBONE, US
22773 3697 3064 324 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3520 1320 63 SHAW, CA
16625 3465 1799 2514 AKAMAI-AS, US
749 3026 50577 2293 DNIC-AS-00749, US
7018 2606 24130 1578 ATT-INTERNET4, US
396982 2574 3493 369 GOOGLE-CLOUD-PLATFORM, US
30036 2563 368 393 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 6960 1706 146 UNI2-AS, ES
9121 6126 1692 17 TTNET, TR
39891 4560 269 57 ALJAWWALSTC-AS, SA
20940 4047 3400 183 AKAMAI-ASN1, NL
8551 3700 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2939 2290 907 ROSTELECOM-AS, RU
47331 2820 413 2125 TTNET, TR
9009 2645 252 1360 M247, RO
34984 2255 358 611 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 10924 3340 593 Uninet S.A. de C.V., MX
10620 3466 507 852 Telmex Colombia S.A., CO
11830 2261 369 64 Instituto Costarricense de Electricidad
13999 2191 358 584 Mega Cable, S.A. de C.V., MX
28573 1345 2328 258 Claro NXT Telecomunicacoes Ltda, BR
6503 1295 339 517 Axtel, S.A.B. de C.V., MX
3816 1291 740 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1153 370 22 Telefonica del Peru S.A.A., PE
11664 1138 186 467 Techtel LMDS Comunicaciones Interactiva
26615 991 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 1518 393 21 LINKdotNET-AS, EG
24835 1509 511 29 RAYA-AS, EG
36992 1321 1518 274 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1013 67 40 ORANGE-COTE-IVOIRE, CI
36935 705 520 42 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 517 53 43 WANANCHI-, KE
37342 494 32 1 MOVITEL, MZ
2018 372 319 71 TENET-1, ZA
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 10924 3340 593 Uninet S.A. de C.V., MX
9808 9170 8884 50 CHINAMOBILE-CN China Mobile Communicati
16509 7764 10639 2927 AMAZON-02, US
12479 6960 1706 146 UNI2-AS, ES
9121 6126 1692 17 TTNET, TR
7545 5943 787 703 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4860 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4560 269 57 ALJAWWALSTC-AS, SA
11492 4539 301 581 CABLEONE, US
20940 4047 3400 183 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 9170 9120 CHINAMOBILE-CN China Mobile Communications Grou
12479 6960 6814 UNI2-AS, ES
9121 6126 6109 TTNET, TR
7545 5943 5240 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 7764 4837 AMAZON-02, US
4538 4860 4785 ERX-CERNET-BKB China Education and Research Net
39891 4560 4503 ALJAWWALSTC-AS, SA
11492 4539 3958 CABLEONE, US
20940 4047 3864 AKAMAI-ASN1, NL
7155 3894 3861 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
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
23.131.190.0/24 Origin: 7018 ATT-INTERNET4, US
23.131.190.0/24 Transit: 1299 TWELVE99 Arelion, fka Telia Carrier, SE
23.131.191.0/24 Origin: 212238 CDNEXT, GB
23.131.191.0/24 Transit: 60068 CDN77 \^_^, GB
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 /12:296
/13:587 /14:1204 /15:2045 /16:13502 /17:8318 /18:13923
/19:25190 /20:44236 /21:52307 /22:110039 /23:98038 /24:546637
/25:810 /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 6006 6960 UNI2-AS, ES
9121 5301 6126 TTNET, TR
8151 4910 10924 Uninet S.A. de C.V., MX
39891 3551 4560 ALJAWWALSTC-AS, SA
11492 3447 4539 CABLEONE, US
6327 3328 3520 SHAW, CA
8551 3165 3700 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7155 2983 3894 VIASAT-SP-BACKBONE, US
22773 2726 3697 ASN-CXA-ALL-CCI-22773-RDC, US
47331 2441 2820 TTNET, TR
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1635 2:1225 3:168 4:5 5:4106 6:110
7:5 8:1574 9:1 11:172 12:1609 13:370
14:2368 15:285 16:76 17:371 18:410 20:243
21:4 22:188 23:6009 24:2458 25:4 27:2708
29:19 31:2497 32:103 34:8 35:95 36:1817
37:4591 38:3975 39:820 40:144 41:3911 42:1055
43:2316 44:305 45:16450 46:4239 47:381 49:1723
50:1935 51:374 52:1543 54:396 55:773 56:8
57:80 58:1747 59:1160 60:1006 61:2436 62:2600
63:1938 64:5649 65:2331 66:4910 67:3035 68:1362
69:4141 70:1256 71:657 72:2993 74:2598 75:1464
76:594 77:2345 78:3957 79:2943 80:2060 81:1830
82:1488 83:1236 84:1510 85:3754 86:744 87:1926
88:2870 89:3506 90:591 91:7624 92:1982 93:2567
94:3494 95:4842 96:1316 97:344 98:1173 99:740
100:75 101:1058 102:2502 103:30699 104:4611 105:482
106:850 107:2547 108:918 109:4344 110:2050 111:3311
112:2034 113:1559 114:1605 115:2038 116:1900 117:2473
118:2282 119:1915 120:1727 121:1105 122:2592 123:2150
124:1577 125:2324 128:1290 129:1061 130:971 131:2009
132:799 133:403 134:1896 135:292 136:887 137:918
138:2583 139:1500 140:1029 141:1491 142:1420 143:1441
144:1188 145:352 146:1894 147:1517 148:2285 149:1858
150:864 151:1147 152:1845 153:476 154:3826 155:1412
156:1629 157:1290 158:1045 159:2233 160:2577 161:1432
162:3548 163:1482 164:1684 165:1636 166:825 167:1732
168:3876 169:924 170:4567 171:887 172:3513 173:3059
174:1026 175:1146 176:3632 177:4798 178:3532 179:2161
180:2371 181:3362 182:3267 183:1934 184:2366 185:19982
186:4623 187:3927 188:4093 189:3457 190:9046 191:1469
192:10983 193:8820 194:7188 195:5091 196:2969 197:2414
198:5999 199:6097 200:7727 201:5884 202:10651 203:10025
204:4611 205:3523 206:3826 207:3405 208:4114 209:4820
210:4425 211:2496 212:4086 213:3541 214:1101 215:55
216:6575 217:2642 218:1271 219:576 220:2030 221:954
222:843 223:2001
End of report
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