[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri May 26 18:03:24 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 27 May, 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: 924479
Prefixes after maximum aggregation (per Origin AS): 349930
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 449848
Total ASes present in the Internet Routing Table: 74440
Prefixes per ASN: 12.42
Origin-only ASes present in the Internet Routing Table: 63887
Origin ASes announcing only one prefix: 26267
Transit ASes present in the Internet Routing Table: 10553
Transit-only ASes present in the Internet Routing Table: 433
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: 1060
Number of instances of unregistered ASNs: 1062
Number of 32-bit ASNs allocated by the RIRs: 41953
Number of 32-bit ASNs visible in the Routing Table: 34629
Prefixes from 32-bit ASNs in the Routing Table: 172179
Number of bogon 32-bit ASNs visible in the Routing Table: 17
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 582
Number of addresses announced to Internet: 3056605440
Equivalent to 182 /8s, 48 /16s and 25 /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: 308683
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 245668
Total APNIC prefixes after maximum aggregation: 69513
APNIC Deaggregation factor: 3.53
Prefixes being announced from the APNIC address blocks: 239695
Unique aggregates announced from the APNIC address blocks: 98351
APNIC Region origin ASes present in the Internet Routing Table: 13436
APNIC Prefixes per ASN: 17.84
APNIC Region origin ASes announcing only one prefix: 3974
APNIC Region transit ASes present in the Internet Routing Table: 1808
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: 8740
Number of APNIC addresses announced to Internet: 773526912
Equivalent to 46 /8s, 27 /16s and 21 /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: 269788
Total ARIN prefixes after maximum aggregation: 122784
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 272733
Unique aggregates announced from the ARIN address blocks: 130479
ARIN Region origin ASes present in the Internet Routing Table: 19113
ARIN Prefixes per ASN: 14.27
ARIN Region origin ASes announcing only one prefix: 6982
ARIN Region transit ASes present in the Internet Routing Table: 1961
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: 4805
Number of ARIN addresses announced to Internet: 1280804352
Equivalent to 76 /8s, 87 /16s and 134 /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: 259994
Total RIPE prefixes after maximum aggregation: 122472
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 255883
Unique aggregates announced from the RIPE address blocks: 158701
RIPE Region origin ASes present in the Internet Routing Table: 28316
RIPE Prefixes per ASN: 9.04
RIPE Region origin ASes announcing only one prefix: 12051
RIPE Region transit ASes present in the Internet Routing Table: 3959
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: 11195
Number of RIPE addresses announced to Internet: 717759104
Equivalent to 42 /8s, 200 /16s and 34 /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: 118673
Total LACNIC prefixes after maximum aggregation: 28557
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 117875
Unique aggregates announced from the LACNIC address blocks: 49457
LACNIC Region origin ASes present in the Internet Routing Table: 11010
LACNIC Prefixes per ASN: 10.71
LACNIC Region origin ASes announcing only one prefix: 2646
LACNIC Region transit ASes present in the Internet Routing Table: 2283
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: 8793
Number of LACNIC addresses announced to Internet: 177024256
Equivalent to 10 /8s, 141 /16s and 45 /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: 29296
Total AfriNIC prefixes after maximum aggregation: 5839
AfriNIC Deaggregation factor: 5.02
Prefixes being announced from the AfriNIC address blocks: 37711
Unique aggregates announced from the AfriNIC address blocks: 12382
AfriNIC Region origin ASes present in the Internet Routing Table: 1747
AfriNIC Prefixes per ASN: 21.59
AfriNIC Region origin ASes announcing only one prefix: 614
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: 1096
Number of AfriNIC addresses announced to Internet: 107095296
Equivalent to 6 /8s, 98 /16s and 37 /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 9496 8706 40 CHINAMOBILE-CN China Mobile Communicati
7545 5717 784 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4864 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4188 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3572 1043 66 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3380 1856 96 VNPT-AS-VN VNPT Corp, VN
7552 3232 1331 21 VIETEL-AS-AP Viettel Group, VN
9498 2964 491 239 BBIL-AP BHARTI Airtel Ltd., IN
4766 2548 11253 592 KIXS-AS-KR Korea Telecom, KR
24560 2399 836 446 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 8306 10783 2989 AMAZON-02, US
11492 4524 300 608 CABLEONE, US
7155 4042 282 62 VIASAT-SP-BACKBONE, US
22773 3566 3052 269 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3526 1320 64 SHAW, CA
749 3099 54980 2351 DNIC-AS-00749, US
16625 3091 1553 2339 AKAMAI-AS, US
396982 2656 3592 373 GOOGLE-CLOUD-PLATFORM, US
30036 2505 361 423 MEDIACOM-ENTERPRISE-BUSINESS, US
7018 2481 24001 1562 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 7308 1707 141 UNI2-AS, ES
39891 4897 290 61 ALJAWWALSTC-AS, SA
20940 4110 3398 161 AKAMAI-ASN1, NL
8551 3876 369 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2951 2292 910 ROSTELECOM-AS, RU
9009 2720 250 1409 M247, RO
34984 2279 360 608 TELLCOM-AS, TR
6849 1956 307 17 UKRTELNET, UA
58224 1829 945 534 TCI, IR
61317 1648 110 1236 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 11231 3347 607 Uninet S.A. de C.V., MX
10620 3521 508 855 Telmex Colombia S.A., CO
13999 2361 364 629 Mega Cable, S.A. de C.V., MX
11830 2270 369 64 Instituto Costarricense de Electricidad
28573 1331 2324 238 Claro NXT Telecomunicacoes Ltda, BR
3816 1297 768 173 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1294 343 510 Axtel, S.A.B. de C.V., MX
6147 1134 370 22 Telefonica del Peru S.A.A., PE
11664 1096 180 441 Techtel LMDS Comunicaciones Interactiva
26615 1038 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 1572 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 1030 67 47 ORANGE-COTE-IVOIRE, CI
36935 917 520 42 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
15399 526 54 49 WANANCHI-, KE
24757 488 73 5 EthioNet-AS, ET
37342 484 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 11231 3347 607 Uninet S.A. de C.V., MX
9808 9496 8706 40 CHINAMOBILE-CN China Mobile Communicati
16509 8306 10783 2989 AMAZON-02, US
12479 7308 1707 141 UNI2-AS, ES
7545 5717 784 691 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 290 61 ALJAWWALSTC-AS, SA
4538 4864 4192 75 ERX-CERNET-BKB China Education and Rese
11492 4524 300 608 CABLEONE, US
18403 4188 347 25 FPT-AS-AP FPT Telecom Company, VN
20940 4110 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 9496 9456 CHINAMOBILE-CN China Mobile Communications Grou
12479 7308 7167 UNI2-AS, ES
16509 8306 5317 AMAZON-02, US
7545 5717 5026 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 4836 ALJAWWALSTC-AS, SA
4538 4864 4789 ERX-CERNET-BKB China Education and Research Net
18403 4188 4163 FPT-AS-AP FPT Telecom Company, VN
7155 4042 3980 VIASAT-SP-BACKBONE, US
20940 4110 3949 AKAMAI-ASN1, NL
11492 4524 3916 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 /14:1200 /15:2058 /16:13477 /17:8227 /18:13858
/19:25131 /20:44109 /21:51369 /22:109931 /23:98288 /24:555029
/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 6386 7308 UNI2-AS, ES
8151 5249 11231 Uninet S.A. de C.V., MX
39891 3632 4897 ALJAWWALSTC-AS, SA
11492 3433 4524 CABLEONE, US
8551 3349 3876 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3335 3526 SHAW, CA
7155 3065 4042 VIASAT-SP-BACKBONE, US
22773 2634 3566 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2161 2505 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2074 3521 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2175 2:1312 3:181 4:5 5:4536 6:130
7:6 8:1546 9:1 11:172 12:1538 13:385
14:2306 15:304 16:191 17:374 18:421 20:258
21:4 22:188 23:6304 24:2604 25:6 27:2468
29:19 31:2486 32:80 34:21 35:112 36:1964
37:4659 38:4647 39:844 40:151 41:3924 42:1982
43:2366 44:311 45:16521 46:4353 47:363 49:1764
50:1868 51:584 52:1589 54:392 55:843 56:8
57:115 58:1891 59:1119 60:987 61:2501 62:2714
63:1940 64:5664 65:2328 66:5042 67:2927 68:1346
69:4142 70:1205 71:670 72:3003 74:2613 75:1554
76:610 77:2434 78:1822 79:3176 80:2125 81:1763
82:1488 83:1264 84:1534 85:2986 86:765 87:2010
88:1174 89:3712 90:615 91:7744 92:2065 93:2614
94:3616 95:4040 96:1298 97:336 98:1093 99:745
100:69 101:1079 102:2722 103:31356 104:4670 105:504
106:949 107:2588 108:1047 109:4415 110:2098 111:3158
112:2038 113:1801 114:1648 115:1981 116:1912 117:2508
118:2619 119:2012 120:1825 121:1131 122:2598 123:2177
124:1610 125:2502 128:1461 129:1059 130:1021 131:1988
132:815 133:422 134:1917 135:306 136:880 137:950
138:2574 139:1558 140:1248 141:1431 142:1451 143:1544
144:1152 145:346 146:1949 147:1592 148:2390 149:2251
150:875 151:1152 152:1816 153:491 154:4468 155:1438
156:1789 157:1321 158:1082 159:2237 160:2554 161:1548
162:3531 163:1533 164:1616 165:1768 166:1100 167:1736
168:3903 169:949 170:4597 171:893 172:3565 173:2962
174:1047 175:1176 176:3710 177:4699 178:3585 179:2212
180:2520 181:3501 182:3389 183:2087 184:2341 185:20285
186:4820 187:4054 188:4129 189:3668 190:9178 191:1484
192:10925 193:8873 194:7267 195:5142 196:3109 197:2373
198:5967 199:6086 200:8028 201:5889 202:10700 203:10301
204:4575 205:3704 206:4274 207:3466 208:4102 209:4894
210:4446 211:2511 212:4193 213:3619 214:1076 215:59
216:6643 217:2717 218:1291 219:580 220:1995 221:971
222:883 223:2183
End of report
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