[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Feb 10 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 11 Feb, 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: 920384
Prefixes after maximum aggregation (per Origin AS): 348127
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 446226
Total ASes present in the Internet Routing Table: 74115
Prefixes per ASN: 12.42
Origin-only ASes present in the Internet Routing Table: 63573
Origin ASes announcing only one prefix: 26124
Transit ASes present in the Internet Routing Table: 10542
Transit-only ASes present in the Internet Routing Table: 443
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: 1056
Number of instances of unregistered ASNs: 1066
Number of 32-bit ASNs allocated by the RIRs: 41188
Number of 32-bit ASNs visible in the Routing Table: 34158
Prefixes from 32-bit ASNs in the Routing Table: 166962
Number of bogon 32-bit ASNs visible in the Routing Table: 30
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 565
Number of addresses announced to Internet: 3062784384
Equivalent to 182 /8s, 142 /16s and 97 /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: 312525
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 241005
Total APNIC prefixes after maximum aggregation: 69026
APNIC Deaggregation factor: 3.49
Prefixes being announced from the APNIC address blocks: 235937
Unique aggregates announced from the APNIC address blocks: 97970
APNIC Region origin ASes present in the Internet Routing Table: 13286
APNIC Prefixes per ASN: 17.76
APNIC Region origin ASes announcing only one prefix: 3843
APNIC Region transit ASes present in the Internet Routing Table: 1781
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: 8568
Number of APNIC addresses announced to Internet: 773609984
Equivalent to 46 /8s, 28 /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: 267451
Total ARIN prefixes after maximum aggregation: 121409
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 269443
Unique aggregates announced from the ARIN address blocks: 130373
ARIN Region origin ASes present in the Internet Routing Table: 19074
ARIN Prefixes per ASN: 14.13
ARIN Region origin ASes announcing only one prefix: 6986
ARIN Region transit ASes present in the Internet Routing Table: 1965
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4742
Number of ARIN addresses announced to Internet: 1286042368
Equivalent to 76 /8s, 167 /16s and 115 /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: 264443
Total RIPE prefixes after maximum aggregation: 122662
RIPE Deaggregation factor: 2.16
Prefixes being announced from the RIPE address blocks: 261014
Unique aggregates announced from the RIPE address blocks: 156354
RIPE Region origin ASes present in the Internet Routing Table: 28212
RIPE Prefixes per ASN: 9.25
RIPE Region origin ASes announcing only one prefix: 12030
RIPE Region transit ASes present in the Internet Routing Table: 3976
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11012
Number of RIPE addresses announced to Internet: 718416000
Equivalent to 42 /8s, 210 /16s and 40 /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: 117307
Total LACNIC prefixes after maximum aggregation: 28508
LACNIC Deaggregation factor: 4.11
Prefixes being announced from the LACNIC address blocks: 116532
Unique aggregates announced from the LACNIC address blocks: 49047
LACNIC Region origin ASes present in the Internet Routing Table: 10983
LACNIC Prefixes per ASN: 10.61
LACNIC Region origin ASes announcing only one prefix: 2661
LACNIC Region transit ASes present in the Internet Routing Table: 2285
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: 8770
Number of LACNIC addresses announced to Internet: 176338432
Equivalent to 10 /8s, 130 /16s and 182 /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: 29122
Total AfriNIC prefixes after maximum aggregation: 5745
AfriNIC Deaggregation factor: 5.07
Prefixes being announced from the AfriNIC address blocks: 36893
Unique aggregates announced from the AfriNIC address blocks: 12033
AfriNIC Region origin ASes present in the Internet Routing Table: 1721
AfriNIC Prefixes per ASN: 21.44
AfriNIC Region origin ASes announcing only one prefix: 604
AfriNIC Region transit ASes present in the Internet Routing Table: 331
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1066
Number of AfriNIC addresses announced to Internet: 108038144
Equivalent to 6 /8s, 112 /16s and 136 /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 9454 8884 51 CHINAMOBILE-CN China Mobile Communicati
7545 5852 786 702 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4856 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3637 1331 21 VIETEL-AS-AP Viettel Group, VN
7713 3517 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3381 1874 96 VNPT-AS-VN VNPT Corp, VN
9498 2750 499 238 BBIL-AP BHARTI Airtel Ltd., IN
4766 2532 11251 592 KIXS-AS-KR Korea Telecom, KR
24560 2360 842 441 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 7959 10737 2842 AMAZON-02, US
11492 4534 300 598 CABLEONE, US
7155 3899 265 33 VIASAT-SP-BACKBONE, US
22773 3652 3063 286 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3503 1320 63 SHAW, CA
16625 3309 1672 2425 AKAMAI-AS, US
749 3037 50571 2304 DNIC-AS-00749, US
396982 2601 3583 349 GOOGLE-CLOUD-PLATFORM, US
7018 2591 24127 1573 ATT-INTERNET4, US
30036 2556 366 377 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 6992 1706 146 UNI2-AS, ES
9121 6089 1692 17 TTNET, TR
39891 4561 269 58 ALJAWWALSTC-AS, SA
20940 4019 3399 175 AKAMAI-ASN1, NL
8551 3893 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2949 2292 910 ROSTELECOM-AS, RU
9009 2694 256 1375 M247, RO
47331 2565 386 1935 TTNET, TR
34984 2266 359 609 TELLCOM-AS, TR
6849 2252 339 19 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 11113 3348 587 Uninet S.A. de C.V., MX
10620 3476 507 862 Telmex Colombia S.A., CO
11830 2262 369 64 Instituto Costarricense de Electricidad
13999 2246 375 606 Mega Cable, S.A. de C.V., MX
28573 1351 2328 263 Claro NXT Telecomunicacoes Ltda, BR
6503 1297 339 517 Axtel, S.A.B. de C.V., MX
3816 1292 746 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1150 369 22 Telefonica del Peru S.A.A., PE
11664 1098 180 458 Techtel LMDS Comunicaciones Interactiva
26615 1018 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
24835 1540 533 30 RAYA-AS, EG
24863 1501 393 21 LINKdotNET-AS, EG
36992 1348 1517 277 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 998 67 53 ORANGE-COTE-IVOIRE, CI
36935 885 520 42 Vodafone-, EG
6713 549 1861 34 IAM-AS, MA
15399 511 52 41 WANANCHI-, KE
24757 495 73 5 EthioNet-AS, ET
37342 494 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 11113 3348 587 Uninet S.A. de C.V., MX
9808 9454 8884 51 CHINAMOBILE-CN China Mobile Communicati
16509 7959 10737 2842 AMAZON-02, US
12479 6992 1706 146 UNI2-AS, ES
9121 6089 1692 17 TTNET, TR
7545 5852 786 702 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4856 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4561 269 58 ALJAWWALSTC-AS, SA
11492 4534 300 598 CABLEONE, US
20940 4019 3399 175 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 9454 9403 CHINAMOBILE-CN China Mobile Communications Grou
12479 6992 6846 UNI2-AS, ES
9121 6089 6072 TTNET, TR
7545 5852 5150 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 7959 5117 AMAZON-02, US
4538 4856 4781 ERX-CERNET-BKB China Education and Research Net
39891 4561 4503 ALJAWWALSTC-AS, SA
11492 4534 3936 CABLEONE, US
7155 3899 3866 VIASAT-SP-BACKBONE, US
8551 3893 3856 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
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
23.131.188.0/24 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
/13:580 /14:1203 /15:2040 /16:13481 /17:8300 /18:13897
/19:25214 /20:44317 /21:52396 /22:110296 /23:98305 /24:549065
/25:820 /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 6057 6992 UNI2-AS, ES
9121 5267 6089 TTNET, TR
8151 5117 11113 Uninet S.A. de C.V., MX
39891 3552 4561 ALJAWWALSTC-AS, SA
11492 3449 4534 CABLEONE, US
8551 3365 3893 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3311 3503 SHAW, CA
7155 2988 3899 VIASAT-SP-BACKBONE, US
22773 2703 3652 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2213 2556 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1659 2:1238 3:168 4:5 5:4316 6:113
7:5 8:1557 9:1 11:172 12:1586 13:392
14:2348 15:290 16:79 17:366 18:401 20:244
21:4 22:188 23:6057 24:2509 25:4 27:2597
29:19 31:2510 32:105 34:8 35:106 36:1895
37:4585 38:4122 39:839 40:154 41:4038 42:1067
43:2335 44:304 45:16373 46:4166 47:382 49:1750
50:1835 51:372 52:1563 54:394 55:866 56:8
57:80 58:1741 59:1163 60:991 61:2431 62:2633
63:1932 64:5673 65:2327 66:4929 67:3045 68:1349
69:4155 70:1253 71:662 72:2987 74:2601 75:1457
76:603 77:2388 78:3886 79:3182 80:2081 81:1855
82:1483 83:1237 84:1527 85:3734 86:758 87:1960
88:2846 89:3581 90:593 91:7639 92:2014 93:2593
94:3536 95:4850 96:1331 97:347 98:1161 99:744
100:75 101:1067 102:2552 103:30931 104:4500 105:485
106:856 107:2523 108:919 109:4369 110:2088 111:3342
112:2047 113:1551 114:1615 115:2039 116:1902 117:2554
118:2290 119:1933 120:1768 121:1118 122:2594 123:2167
124:1605 125:2381 128:1316 129:1068 130:989 131:1995
132:801 133:406 134:1910 135:315 136:862 137:926
138:2546 139:1545 140:1184 141:1479 142:1425 143:1476
144:1202 145:349 146:1879 147:1557 148:2286 149:1902
150:870 151:1143 152:1828 153:481 154:3928 155:1413
156:1673 157:1296 158:1010 159:2265 160:2543 161:1411
162:3523 163:1538 164:1597 165:1665 166:846 167:1726
168:3874 169:921 170:4570 171:897 172:3513 173:2974
174:1028 175:1163 176:3710 177:4585 178:3580 179:2152
180:2372 181:3400 182:3280 183:1931 184:2340 185:20007
186:4650 187:3946 188:4114 189:3510 190:9091 191:1454
192:10961 193:8817 194:7242 195:5115 196:3057 197:2412
198:5961 199:6083 200:7755 201:5886 202:10646 203:10020
204:4606 205:3516 206:3864 207:3431 208:4084 209:4840
210:4446 211:2499 212:4109 213:3554 214:1098 215:55
216:6605 217:2652 218:1278 219:573 220:2024 221:970
222:866 223:2100
End of report
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