[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Jun 30 18:02:11 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 01 Jul, 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: 926783
Prefixes after maximum aggregation (per Origin AS): 350989
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 451559
Total ASes present in the Internet Routing Table: 74553
Prefixes per ASN: 12.43
Origin-only ASes present in the Internet Routing Table: 64022
Origin ASes announcing only one prefix: 26312
Transit ASes present in the Internet Routing Table: 10531
Transit-only ASes present in the Internet Routing Table: 437
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 79
Max AS path prepend of ASN ( 37447) 75
Prefixes from unregistered ASNs in the Routing Table: 1039
Number of instances of unregistered ASNs: 1043
Number of 32-bit ASNs allocated by the RIRs: 42198
Number of 32-bit ASNs visible in the Routing Table: 34769
Prefixes from 32-bit ASNs in the Routing Table: 173345
Number of bogon 32-bit ASNs visible in the Routing Table: 25
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 557
Number of addresses announced to Internet: 3054653952
Equivalent to 182 /8s, 18 /16s and 82 /24s
Percentage of available address space announced: 82.5
Percentage of allocated address space announced: 82.5
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: 309201
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 245979
Total APNIC prefixes after maximum aggregation: 69770
APNIC Deaggregation factor: 3.53
Prefixes being announced from the APNIC address blocks: 239835
Unique aggregates announced from the APNIC address blocks: 98665
APNIC Region origin ASes present in the Internet Routing Table: 13484
APNIC Prefixes per ASN: 17.79
APNIC Region origin ASes announcing only one prefix: 3985
APNIC Region transit ASes present in the Internet Routing Table: 1787
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: 8806
Number of APNIC addresses announced to Internet: 773544576
Equivalent to 46 /8s, 27 /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, 131072-153913
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: 271273
Total ARIN prefixes after maximum aggregation: 123356
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 273760
Unique aggregates announced from the ARIN address blocks: 130697
ARIN Region origin ASes present in the Internet Routing Table: 19114
ARIN Prefixes per ASN: 14.32
ARIN Region origin ASes announcing only one prefix: 6987
ARIN Region transit ASes present in the Internet Routing Table: 1956
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: 4816
Number of ARIN addresses announced to Internet: 1278673152
Equivalent to 76 /8s, 55 /16s and 1 /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: 260071
Total RIPE prefixes after maximum aggregation: 122756
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 256523
Unique aggregates announced from the RIPE address blocks: 159652
RIPE Region origin ASes present in the Internet Routing Table: 28359
RIPE Prefixes per ASN: 9.05
RIPE Region origin ASes announcing only one prefix: 12047
RIPE Region transit ASes present in the Internet Routing Table: 3953
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11230
Number of RIPE addresses announced to Internet: 717425536
Equivalent to 42 /8s, 195 /16s and 11 /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: 118844
Total LACNIC prefixes after maximum aggregation: 28555
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 117974
Unique aggregates announced from the LACNIC address blocks: 49532
LACNIC Region origin ASes present in the Internet Routing Table: 11019
LACNIC Prefixes per ASN: 10.71
LACNIC Region origin ASes announcing only one prefix: 2674
LACNIC Region transit ASes present in the Internet Routing Table: 2301
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: 8807
Number of LACNIC addresses announced to Internet: 176968192
Equivalent to 10 /8s, 140 /16s and 82 /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: 29576
Total AfriNIC prefixes after maximum aggregation: 5845
AfriNIC Deaggregation factor: 5.06
Prefixes being announced from the AfriNIC address blocks: 38134
Unique aggregates announced from the AfriNIC address blocks: 12554
AfriNIC Region origin ASes present in the Internet Routing Table: 1760
AfriNIC Prefixes per ASN: 21.67
AfriNIC Region origin ASes announcing only one prefix: 619
AfriNIC Region transit ASes present in the Internet Routing Table: 329
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 79
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1110
Number of AfriNIC addresses announced to Internet: 107715840
Equivalent to 6 /8s, 107 /16s and 157 /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 9524 8706 40 CHINAMOBILE-CN China Mobile Communicati
7545 5685 784 696 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4856 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4233 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3553 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3379 1856 96 VNPT-AS-VN VNPT Corp, VN
7552 3313 1331 21 VIETEL-AS-AP Viettel Group, VN
9498 3047 498 252 BBIL-AP BHARTI Airtel Ltd., IN
4766 2561 11271 592 KIXS-AS-KR Korea Telecom, KR
24560 2434 837 441 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
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 8669 10886 3143 AMAZON-02, US
11492 4519 300 614 CABLEONE, US
7155 4170 288 87 VIASAT-SP-BACKBONE, US
22773 3536 3053 260 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3524 1319 66 SHAW, CA
16625 3137 1559 2360 AKAMAI-AS, US
749 3125 54969 2377 DNIC-AS-00749, US
367 2736 3748 1309 DNIC-ASBLK-00306-00371, US
396982 2670 3594 381 GOOGLE-CLOUD-PLATFORM, US
30036 2496 360 438 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 7293 1706 141 UNI2-AS, ES
39891 4897 290 61 ALJAWWALSTC-AS, SA
20940 4091 3398 162 AKAMAI-ASN1, NL
8551 3465 368 33 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2967 2292 912 ROSTELECOM-AS, RU
9009 2660 247 1383 M247, RO
34984 2307 361 609 TELLCOM-AS, TR
58224 1831 946 535 TCI, IR
6849 1824 307 17 UKRTELNET, UA
13188 1606 100 27 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 11494 3373 591 UNINET, MX
10620 3529 507 843 Telmex Colombia S.A., CO
13999 2378 355 627 Mega Cable, S.A. de C.V., MX
11830 2269 369 64 Instituto Costarricense de Electricidad
28573 1318 2323 241 Claro NXT Telecomunicacoes Ltda, BR
3816 1306 774 170 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1304 344 511 Axtel, S.A.B. de C.V., MX
6147 1127 370 22 Telefonica del Peru S.A.A., PE
11664 1099 177 437 Techtel LMDS Comunicaciones Interactiva
26615 1038 2500 47 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 1628 393 19 LINKdotNET-AS, EG
24835 1548 533 27 RAYA-AS, EG
36992 1313 1518 282 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1038 67 46 ORANGE-COTE-IVOIRE, CI
36935 917 520 42 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
15399 534 54 50 WANANCHI-, KE
24757 495 73 5 EthioNet-AS, ET
37342 475 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 11494 3373 591 UNINET, MX
9808 9524 8706 40 CHINAMOBILE-CN China Mobile Communicati
16509 8669 10886 3143 AMAZON-02, US
12479 7293 1706 141 UNI2-AS, ES
7545 5685 784 696 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 290 61 ALJAWWALSTC-AS, SA
4538 4856 4192 75 ERX-CERNET-BKB China Education and Rese
11492 4519 300 614 CABLEONE, US
18403 4233 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4170 288 87 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 9524 9484 CHINAMOBILE-CN China Mobile Communications Grou
12479 7293 7152 UNI2-AS, ES
16509 8669 5526 AMAZON-02, US
7545 5685 4989 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 4836 ALJAWWALSTC-AS, SA
4538 4856 4781 ERX-CERNET-BKB China Education and Research Net
18403 4233 4208 FPT-AS-AP FPT Telecom Company, VN
7155 4170 4083 VIASAT-SP-BACKBONE, US
20940 4091 3929 AKAMAI-ASN1, NL
11492 4519 3905 CABLEONE, 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
33492 UNALLOCATED 8.6.184.0/23 33650 COMCAST-33650, US
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
19695 UNALLOCATED 8.20.161.0/24 46887 LIGHTOWER, 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
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
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
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
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 /9:14 /10:39 /11:103 /12:299
/13:578 /14:1199 /15:2072 /16:13477 /17:8268 /18:13859
/19:25214 /20:44226 /21:51536 /22:110129 /23:98598 /24:556409
/25:747 /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 6381 7293 UNI2-AS, ES
8151 5423 11494 UNINET, MX
39891 3632 4897 ALJAWWALSTC-AS, SA
11492 3428 4519 CABLEONE, US
6327 3334 3524 SHAW, CA
7155 3118 4170 VIASAT-SP-BACKBONE, US
8551 2934 3465 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2606 3536 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2152 2496 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2088 3529 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2200 2:1333 3:224 4:5 5:4528 6:129
7:6 8:1552 9:1 11:172 12:1519 13:386
14:2320 15:301 16:196 17:373 18:496 20:260
21:4 22:188 23:6359 24:2601 25:6 27:2490
29:19 31:2513 32:81 34:23 35:114 36:1978
37:4691 38:4985 39:828 40:151 41:3943 42:2014
43:2343 44:303 45:16621 46:4385 47:373 49:1766
50:1872 51:586 52:1596 54:395 55:978 56:8
57:119 58:1890 59:1160 60:981 61:2498 62:2677
63:1909 64:5605 65:2319 66:5039 67:3065 68:1357
69:4124 70:1214 71:688 72:2984 74:2634 75:1565
76:613 77:2448 78:1829 79:2984 80:2111 81:1795
82:1511 83:1255 84:1558 85:3013 86:749 87:2010
88:1184 89:3761 90:614 91:7762 92:2040 93:2610
94:3567 95:4057 96:1312 97:341 98:1135 99:736
100:94 101:1078 102:2784 103:31653 104:4570 105:504
106:894 107:2570 108:1058 109:4225 110:2107 111:3182
112:2055 113:1805 114:1645 115:1973 116:1912 117:2533
118:2623 119:1986 120:1834 121:1138 122:2619 123:2178
124:1619 125:2508 128:1466 129:1058 130:1015 131:1977
132:814 133:422 134:1799 135:309 136:887 137:950
138:2535 139:1569 140:1250 141:1417 142:1465 143:1507
144:1102 145:341 146:1965 147:1590 148:2431 149:2220
150:870 151:1161 152:1844 153:494 154:4639 155:1394
156:1802 157:1310 158:1086 159:2263 160:2563 161:1518
162:3508 163:1566 164:1607 165:1856 166:1089 167:1714
168:3862 169:953 170:4611 171:895 172:3633 173:2968
174:1083 175:1188 176:3762 177:4518 178:3614 179:2176
180:2440 181:3489 182:3438 183:2025 184:2325 185:20411
186:4824 187:4039 188:4118 189:3705 190:9242 191:1393
192:10914 193:8946 194:7338 195:5147 196:3123 197:2384
198:5993 199:6100 200:8003 201:5958 202:10591 203:10142
204:4557 205:3718 206:4329 207:3446 208:4137 209:4938
210:4478 211:2525 212:4273 213:3623 214:1087 215:59
216:6690 217:2764 218:1295 219:582 220:1995 221:963
222:856 223:2185
End of report
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