[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Jun 2 18:03:50 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 03 Jun, 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: 924953
Prefixes after maximum aggregation (per Origin AS): 350297
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 450284
Total ASes present in the Internet Routing Table: 74484
Prefixes per ASN: 12.42
Origin-only ASes present in the Internet Routing Table: 63929
Origin ASes announcing only one prefix: 26283
Transit ASes present in the Internet Routing Table: 10555
Transit-only ASes present in the Internet Routing Table: 440
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: 1055
Number of instances of unregistered ASNs: 1062
Number of 32-bit ASNs allocated by the RIRs: 42004
Number of 32-bit ASNs visible in the Routing Table: 34658
Prefixes from 32-bit ASNs in the Routing Table: 172526
Number of bogon 32-bit ASNs visible in the Routing Table: 27
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 579
Number of addresses announced to Internet: 3056305152
Equivalent to 182 /8s, 43 /16s and 132 /24s
Percentage of available address space announced: 82.6
Percentage of allocated address space announced: 82.6
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: 308714
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 246035
Total APNIC prefixes after maximum aggregation: 69651
APNIC Deaggregation factor: 3.53
Prefixes being announced from the APNIC address blocks: 240032
Unique aggregates announced from the APNIC address blocks: 98413
APNIC Region origin ASes present in the Internet Routing Table: 13444
APNIC Prefixes per ASN: 17.85
APNIC Region origin ASes announcing only one prefix: 3964
APNIC Region transit ASes present in the Internet Routing Table: 1798
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: 8752
Number of APNIC addresses announced to Internet: 773473152
Equivalent to 46 /8s, 26 /16s and 67 /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: 269929
Total ARIN prefixes after maximum aggregation: 122853
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 272782
Unique aggregates announced from the ARIN address blocks: 130493
ARIN Region origin ASes present in the Internet Routing Table: 19126
ARIN Prefixes per ASN: 14.26
ARIN Region origin ASes announcing only one prefix: 6989
ARIN Region transit ASes present in the Internet Routing Table: 1957
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: 4810
Number of ARIN addresses announced to Internet: 1280661248
Equivalent to 76 /8s, 85 /16s and 87 /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: 260152
Total RIPE prefixes after maximum aggregation: 122631
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 256119
Unique aggregates announced from the RIPE address blocks: 158928
RIPE Region origin ASes present in the Internet Routing Table: 28330
RIPE Prefixes per ASN: 9.04
RIPE Region origin ASes announcing only one prefix: 12062
RIPE Region transit ASes present in the Internet Routing Table: 3964
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: 11201
Number of RIPE addresses announced to Internet: 717836928
Equivalent to 42 /8s, 201 /16s and 82 /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: 118624
Total LACNIC prefixes after maximum aggregation: 28554
LACNIC Deaggregation factor: 4.15
Prefixes being announced from the LACNIC address blocks: 117802
Unique aggregates announced from the LACNIC address blocks: 49523
LACNIC Region origin ASes present in the Internet Routing Table: 11014
LACNIC Prefixes per ASN: 10.70
LACNIC Region origin ASes announcing only one prefix: 2655
LACNIC Region transit ASes present in the Internet Routing Table: 2290
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: 8799
Number of LACNIC addresses announced to Internet: 177029632
Equivalent to 10 /8s, 141 /16s and 66 /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: 29158
Total AfriNIC prefixes after maximum aggregation: 5842
AfriNIC Deaggregation factor: 4.99
Prefixes being announced from the AfriNIC address blocks: 37639
Unique aggregates announced from the AfriNIC address blocks: 12452
AfriNIC Region origin ASes present in the Internet Routing Table: 1748
AfriNIC Prefixes per ASN: 21.53
AfriNIC Region origin ASes announcing only one prefix: 613
AfriNIC Region transit ASes present in the Internet Routing Table: 337
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: 1096
Number of AfriNIC addresses announced to Internet: 106908160
Equivalent to 6 /8s, 95 /16s and 74 /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 9502 8706 40 CHINAMOBILE-CN China Mobile Communicati
7545 5724 785 694 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4858 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4208 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3572 1043 66 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3377 1856 95 VNPT-AS-VN VNPT Corp, VN
7552 3372 1331 21 VIETEL-AS-AP Viettel Group, VN
9498 3019 498 251 BBIL-AP BHARTI Airtel Ltd., IN
4766 2546 11253 592 KIXS-AS-KR Korea Telecom, KR
24560 2405 837 443 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 8312 10786 2994 AMAZON-02, US
11492 4523 300 612 CABLEONE, US
7155 4052 282 62 VIASAT-SP-BACKBONE, US
22773 3568 3052 271 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3523 1319 66 SHAW, CA
749 3128 54970 2380 DNIC-AS-00749, US
16625 3086 1551 2335 AKAMAI-AS, US
396982 2660 3593 375 GOOGLE-CLOUD-PLATFORM, US
30036 2504 360 419 MEDIACOM-ENTERPRISE-BUSINESS, US
7018 2449 24003 1535 ATT-INTERNET4, 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 7301 1707 141 UNI2-AS, ES
39891 4897 290 61 ALJAWWALSTC-AS, SA
20940 4092 3398 161 AKAMAI-ASN1, NL
8551 3876 369 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2950 2291 910 ROSTELECOM-AS, RU
9009 2659 247 1389 M247, RO
34984 2278 360 606 TELLCOM-AS, TR
6849 1957 307 17 UKRTELNET, UA
58224 1826 945 533 TCI, IR
61317 1654 110 1279 ASDETUK www.heficed.com, US
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 11293 3356 605 Uninet S.A. de C.V., MX
10620 3518 507 856 Telmex Colombia S.A., CO
13999 2370 364 630 Mega Cable, S.A. de C.V., MX
11830 2269 369 64 Instituto Costarricense de Electricidad
28573 1331 2324 238 Claro NXT Telecomunicacoes Ltda, BR
6503 1302 343 511 Axtel, S.A.B. de C.V., MX
3816 1297 768 173 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1134 370 22 Telefonica del Peru S.A.A., PE
11664 1100 180 442 Techtel LMDS Comunicaciones Interactiva
26615 1027 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 1573 393 19 LINKdotNET-AS, EG
24835 1538 533 29 RAYA-AS, EG
36992 1341 1518 275 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1034 67 47 ORANGE-COTE-IVOIRE, CI
36935 917 520 42 Vodafone-, EG
6713 551 1861 34 IAM-AS, MA
15399 529 54 49 WANANCHI-, KE
24757 492 73 5 EthioNet-AS, ET
37342 482 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 11293 3356 605 Uninet S.A. de C.V., MX
9808 9502 8706 40 CHINAMOBILE-CN China Mobile Communicati
16509 8312 10786 2994 AMAZON-02, US
12479 7301 1707 141 UNI2-AS, ES
7545 5724 785 694 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 290 61 ALJAWWALSTC-AS, SA
4538 4858 4192 75 ERX-CERNET-BKB China Education and Rese
11492 4523 300 612 CABLEONE, US
18403 4208 347 25 FPT-AS-AP FPT Telecom Company, VN
20940 4092 3398 161 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 9502 9462 CHINAMOBILE-CN China Mobile Communications Grou
12479 7301 7160 UNI2-AS, ES
16509 8312 5318 AMAZON-02, US
7545 5724 5030 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 4836 ALJAWWALSTC-AS, SA
4538 4858 4783 ERX-CERNET-BKB China Education and Research Net
18403 4208 4183 FPT-AS-AP FPT Telecom Company, VN
7155 4052 3990 VIASAT-SP-BACKBONE, US
20940 4092 3931 AKAMAI-ASN1, NL
11492 4523 3911 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
3507 UNALLOCATED 2.57.241.0/24 213035 AS-SERVERION Serverion B.V.,
3507 UNALLOCATED 5.105.49.0/24 213035 AS-SERVERION Serverion B.V.,
3507 UNALLOCATED 5.105.69.0/24 213035 AS-SERVERION Serverion B.V.,
3507 UNALLOCATED 5.105.206.0/24 213035 AS-SERVERION Serverion B.V.,
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
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US
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
23.139.232.0/24 Origin: 211619 MAXKO, HR
23.139.232.0/24 Transit: 42864 GIGANET-HU GigaNet Internet Service Prov
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
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 /12:301
/13:582 /14:1198 /15:2064 /16:13472 /17:8236 /18:13846
/19:25099 /20:44060 /21:51401 /22:109902 /23:98322 /24:555549
/25:749 /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 6385 7301 UNI2-AS, ES
8151 5282 11293 Uninet S.A. de C.V., MX
39891 3632 4897 ALJAWWALSTC-AS, SA
11492 3432 4523 CABLEONE, US
8551 3349 3876 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3333 3523 SHAW, CA
7155 3067 4052 VIASAT-SP-BACKBONE, US
22773 2633 3568 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2160 2504 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2073 3518 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2181 2:1244 3:180 4:5 5:4540 6:132
7:6 8:1549 9:1 11:172 12:1534 13:377
14:2310 15:304 16:193 17:371 18:436 20:263
21:4 22:188 23:6301 24:2606 25:6 27:2471
29:19 31:2498 32:82 34:21 35:112 36:1968
37:4657 38:4748 39:845 40:151 41:3903 42:1989
43:2366 44:305 45:16545 46:4348 47:375 49:1766
50:1872 51:585 52:1588 54:393 55:858 56:8
57:116 58:1889 59:1107 60:987 61:2516 62:2690
63:1922 64:5671 65:2311 66:5030 67:2980 68:1344
69:4136 70:1206 71:670 72:2997 74:2621 75:1558
76:610 77:2438 78:1826 79:3186 80:2130 81:1796
82:1490 83:1265 84:1540 85:3012 86:772 87:2032
88:1177 89:3684 90:614 91:7767 92:2063 93:2618
94:3619 95:4046 96:1309 97:336 98:1114 99:745
100:79 101:1084 102:2727 103:31411 104:4619 105:504
106:950 107:2587 108:1037 109:4404 110:2094 111:3169
112:2038 113:1805 114:1651 115:2002 116:1911 117:2509
118:2627 119:2016 120:1826 121:1134 122:2599 123:2176
124:1614 125:2505 128:1475 129:1059 130:1013 131:1989
132:819 133:420 134:1874 135:306 136:882 137:951
138:2558 139:1561 140:1244 141:1417 142:1453 143:1525
144:1151 145:347 146:1947 147:1590 148:2422 149:2246
150:879 151:1150 152:1813 153:488 154:4538 155:1447
156:1821 157:1322 158:1082 159:2227 160:2554 161:1549
162:3517 163:1530 164:1622 165:1780 166:1123 167:1735
168:3874 169:950 170:4610 171:899 172:3578 173:2968
174:1062 175:1175 176:3704 177:4684 178:3577 179:2235
180:2519 181:3487 182:3433 183:2085 184:2339 185:20308
186:4790 187:3993 188:4120 189:3649 190:9201 191:1476
192:10932 193:8884 194:7317 195:5161 196:3080 197:2379
198:5970 199:6109 200:8055 201:5914 202:10709 203:10307
204:4566 205:3712 206:4281 207:3458 208:4101 209:4911
210:4444 211:2529 212:4183 213:3629 214:1077 215:59
216:6655 217:2717 218:1292 219:580 220:1997 221:969
222:855 223:2181
End of report
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