[lacnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora en apnic.net
Vie Ene 27 15:03:23 -03 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 en lists.apnic.net.
For historical data, please see https://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.
IPv4 Routing Table Report 04:00 +10GMT Sat 28 Jan, 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: 919562
Prefixes after maximum aggregation (per Origin AS): 347630
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 445281
Total ASes present in the Internet Routing Table: 74145
Prefixes per ASN: 12.40
Origin-only ASes present in the Internet Routing Table: 63629
Origin ASes announcing only one prefix: 26181
Transit ASes present in the Internet Routing Table: 10516
Transit-only ASes present in the Internet Routing Table: 438
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: 956
Number of instances of unregistered ASNs: 965
Number of 32-bit ASNs allocated by the RIRs: 41137
Number of 32-bit ASNs visible in the Routing Table: 34125
Prefixes from 32-bit ASNs in the Routing Table: 166499
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: 521
Number of addresses announced to Internet: 3063468416
Equivalent to 182 /8s, 152 /16s and 209 /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: 312048
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 240628
Total APNIC prefixes after maximum aggregation: 68753
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 235655
Unique aggregates announced from the APNIC address blocks: 97714
APNIC Region origin ASes present in the Internet Routing Table: 13286
APNIC Prefixes per ASN: 17.74
APNIC Region origin ASes announcing only one prefix: 3873
APNIC Region transit ASes present in the Internet Routing Table: 1786
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8549
Number of APNIC addresses announced to Internet: 773811200
Equivalent to 46 /8s, 31 /16s and 108 /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: 267148
Total ARIN prefixes after maximum aggregation: 121418
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 269042
Unique aggregates announced from the ARIN address blocks: 129860
ARIN Region origin ASes present in the Internet Routing Table: 19077
ARIN Prefixes per ASN: 14.10
ARIN Region origin ASes announcing only one prefix: 6989
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: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4738
Number of ARIN addresses announced to Internet: 1286425344
Equivalent to 76 /8s, 173 /16s and 75 /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: 264423
Total RIPE prefixes after maximum aggregation: 122536
RIPE Deaggregation factor: 2.16
Prefixes being announced from the RIPE address blocks: 260803
Unique aggregates announced from the RIPE address blocks: 156156
RIPE Region origin ASes present in the Internet Routing Table: 28236
RIPE Prefixes per ASN: 9.24
RIPE Region origin ASes announcing only one prefix: 12047
RIPE Region transit ASes present in the Internet Routing Table: 3960
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: 10996
Number of RIPE addresses announced to Internet: 718605440
Equivalent to 42 /8s, 213 /16s and 12 /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: 117583
Total LACNIC prefixes after maximum aggregation: 28461
LACNIC Deaggregation factor: 4.13
Prefixes being announced from the LACNIC address blocks: 116755
Unique aggregates announced from the LACNIC address blocks: 49073
LACNIC Region origin ASes present in the Internet Routing Table: 11011
LACNIC Prefixes per ASN: 10.60
LACNIC Region origin ASes announcing only one prefix: 2673
LACNIC Region transit ASes present in the Internet Routing Table: 2276
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: 8779
Number of LACNIC addresses announced to Internet: 176249344
Equivalent to 10 /8s, 129 /16s and 90 /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: 28824
Total AfriNIC prefixes after maximum aggregation: 5722
AfriNIC Deaggregation factor: 5.04
Prefixes being announced from the AfriNIC address blocks: 36786
Unique aggregates announced from the AfriNIC address blocks: 12054
AfriNIC Region origin ASes present in the Internet Routing Table: 1719
AfriNIC Prefixes per ASN: 21.40
AfriNIC Region origin ASes announcing only one prefix: 599
AfriNIC Region transit ASes present in the Internet Routing Table: 329
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1063
Number of AfriNIC addresses announced to Internet: 108057088
Equivalent to 6 /8s, 112 /16s and 210 /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 9446 8884 50 CHINAMOBILE-CN China Mobile Communicati
7545 5921 787 703 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4863 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3632 1331 21 VIETEL-AS-AP Viettel Group, VN
7713 3505 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3378 1874 96 VNPT-AS-VN VNPT Corp, VN
9498 2713 499 238 BBIL-AP BHARTI Airtel Ltd., IN
4766 2531 11251 593 KIXS-AS-KR Korea Telecom, KR
24560 2362 848 437 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
45090 2183 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 7847 10711 2895 AMAZON-02, US
11492 4531 300 601 CABLEONE, US
7155 3895 265 33 VIASAT-SP-BACKBONE, US
22773 3694 3066 323 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3500 1320 63 SHAW, CA
16625 3462 1778 2507 AKAMAI-AS, US
749 3023 50575 2290 DNIC-AS-00749, US
396982 2589 3496 365 GOOGLE-CLOUD-PLATFORM, US
7018 2584 24127 1566 ATT-INTERNET4, US
30036 2556 366 395 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 6975 1706 146 UNI2-AS, ES
9121 6115 1692 17 TTNET, TR
39891 4561 269 58 ALJAWWALSTC-AS, SA
20940 4047 3399 177 AKAMAI-ASN1, NL
8551 3904 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2941 2290 908 ROSTELECOM-AS, RU
47331 2787 410 2095 TTNET, TR
9009 2702 256 1370 M247, RO
34984 2259 358 610 TELLCOM-AS, TR
6849 2196 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 11074 3342 584 Uninet S.A. de C.V., MX
10620 3474 507 856 Telmex Colombia S.A., CO
11830 2247 369 64 Instituto Costarricense de Electricidad
13999 2228 367 594 Mega Cable, S.A. de C.V., MX
28573 1353 2329 257 Claro NXT Telecomunicacoes Ltda, BR
6503 1297 339 517 Axtel, S.A.B. de C.V., MX
3816 1290 742 155 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1149 369 22 Telefonica del Peru S.A.A., PE
11664 1128 186 460 Techtel LMDS Comunicaciones Interactiva
26615 1017 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 1538 533 30 RAYA-AS, EG
24863 1502 393 21 LINKdotNET-AS, EG
36992 1337 1517 277 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1009 67 47 ORANGE-COTE-IVOIRE, CI
36935 884 520 42 Vodafone-, EG
6713 612 1861 34 IAM-AS, MA
15399 526 54 46 WANANCHI-, KE
37342 494 32 1 MOVITEL, MZ
24757 492 73 5 EthioNet-AS, ET
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 11074 3342 584 Uninet S.A. de C.V., MX
9808 9446 8884 50 CHINAMOBILE-CN China Mobile Communicati
16509 7847 10711 2895 AMAZON-02, US
12479 6975 1706 146 UNI2-AS, ES
9121 6115 1692 17 TTNET, TR
7545 5921 787 703 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4863 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4561 269 58 ALJAWWALSTC-AS, SA
11492 4531 300 601 CABLEONE, US
20940 4047 3399 177 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 9446 9396 CHINAMOBILE-CN China Mobile Communications Grou
12479 6975 6829 UNI2-AS, ES
9121 6115 6098 TTNET, TR
7545 5921 5218 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 7847 4952 AMAZON-02, US
4538 4863 4788 ERX-CERNET-BKB China Education and Research Net
39891 4561 4503 ALJAWWALSTC-AS, SA
11492 4531 3930 CABLEONE, US
20940 4047 3870 AKAMAI-ASN1, NL
8551 3904 3866 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
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
23.131.188.0/24 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 /11:101 /12:295
/13:580 /14:1199 /15:2041 /16:13488 /17:8316 /18:13943
/19:25209 /20:44346 /21:52333 /22:110215 /23:98394 /24:548215
/25:819 /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 6043 6975 UNI2-AS, ES
9121 5294 6115 TTNET, TR
8151 5084 11074 Uninet S.A. de C.V., MX
39891 3552 4561 ALJAWWALSTC-AS, SA
11492 3446 4531 CABLEONE, US
8551 3369 3904 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3308 3500 SHAW, CA
7155 2984 3895 VIASAT-SP-BACKBONE, US
22773 2725 3694 ASN-CXA-ALL-CCI-22773-RDC, US
47331 2408 2787 TTNET, TR
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1641 2:1232 3:168 4:5 5:4113 6:113
7:5 8:1561 9:1 11:172 12:1575 13:376
14:2361 15:289 16:79 17:370 18:388 20:243
21:4 22:188 23:6068 24:2497 25:4 27:2647
29:19 31:2492 32:101 34:9 35:106 36:1877
37:4586 38:4053 39:833 40:154 41:3953 42:1057
43:2322 44:302 45:16408 46:4184 47:382 49:1750
50:1840 51:380 52:1551 54:395 55:859 56:8
57:79 58:1745 59:1165 60:1004 61:2428 62:2620
63:1940 64:5663 65:2322 66:4905 67:3046 68:1340
69:4147 70:1254 71:660 72:2970 74:2594 75:1457
76:601 77:2391 78:3947 79:3176 80:2066 81:1843
82:1483 83:1235 84:1511 85:3747 86:749 87:1948
88:2881 89:3561 90:597 91:7644 92:2001 93:2582
94:3510 95:4863 96:1328 97:347 98:1159 99:739
100:75 101:1062 102:2531 103:30898 104:4538 105:482
106:848 107:2512 108:921 109:4390 110:2092 111:3341
112:2046 113:1544 114:1616 115:2040 116:1902 117:2562
118:2288 119:1911 120:1768 121:1113 122:2594 123:2155
124:1604 125:2353 128:1303 129:1062 130:980 131:1985
132:802 133:406 134:1912 135:298 136:869 137:930
138:2559 139:1548 140:1140 141:1482 142:1425 143:1489
144:1194 145:347 146:1872 147:1562 148:2297 149:1891
150:863 151:1138 152:1828 153:479 154:3968 155:1406
156:1661 157:1294 158:1031 159:2262 160:2555 161:1465
162:3526 163:1485 164:1615 165:1655 166:838 167:1736
168:3880 169:918 170:4589 171:878 172:3498 173:2953
174:1024 175:1159 176:3698 177:4650 178:3552 179:2152
180:2375 181:3383 182:3279 183:1936 184:2343 185:19968
186:4671 187:3911 188:4108 189:3504 190:9097 191:1429
192:10953 193:8828 194:7221 195:5113 196:3008 197:2405
198:5960 199:6098 200:7762 201:5857 202:10653 203:10036
204:4604 205:3487 206:3876 207:3425 208:4078 209:4826
210:4434 211:2503 212:4101 213:3558 214:1092 215:56
216:6621 217:2636 218:1279 219:567 220:2032 221:969
222:845 223:2064
End of report
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