[lacnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora en apnic.net
Vie Feb 3 15:03:01 -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 04 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: 919404
Prefixes after maximum aggregation (per Origin AS): 347822
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 445727
Total ASes present in the Internet Routing Table: 74078
Prefixes per ASN: 12.41
Origin-only ASes present in the Internet Routing Table: 63572
Origin ASes announcing only one prefix: 26134
Transit ASes present in the Internet Routing Table: 10506
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: 951
Number of instances of unregistered ASNs: 961
Number of 32-bit ASNs allocated by the RIRs: 41183
Number of 32-bit ASNs visible in the Routing Table: 34103
Prefixes from 32-bit ASNs in the Routing Table: 166598
Number of bogon 32-bit ASNs visible in the Routing Table: 31
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 521
Number of addresses announced to Internet: 3062699648
Equivalent to 182 /8s, 141 /16s and 22 /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: 312179
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 240580
Total APNIC prefixes after maximum aggregation: 68793
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 235600
Unique aggregates announced from the APNIC address blocks: 97865
APNIC Region origin ASes present in the Internet Routing Table: 13261
APNIC Prefixes per ASN: 17.77
APNIC Region origin ASes announcing only one prefix: 3847
APNIC Region transit ASes present in the Internet Routing Table: 1771
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: 8531
Number of APNIC addresses announced to Internet: 773543680
Equivalent to 46 /8s, 27 /16s and 87 /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: 267075
Total ARIN prefixes after maximum aggregation: 121357
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 269014
Unique aggregates announced from the ARIN address blocks: 130096
ARIN Region origin ASes present in the Internet Routing Table: 19068
ARIN Prefixes per ASN: 14.11
ARIN Region origin ASes announcing only one prefix: 6982
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: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4736
Number of ARIN addresses announced to Internet: 1286223616
Equivalent to 76 /8s, 170 /16s and 55 /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: 264437
Total RIPE prefixes after maximum aggregation: 122675
RIPE Deaggregation factor: 2.16
Prefixes being announced from the RIPE address blocks: 260933
Unique aggregates announced from the RIPE address blocks: 156189
RIPE Region origin ASes present in the Internet Routing Table: 28215
RIPE Prefixes per ASN: 9.25
RIPE Region origin ASes announcing only one prefix: 12037
RIPE Region transit ASes present in the Internet Routing Table: 3969
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10996
Number of RIPE addresses announced to Internet: 718364800
Equivalent to 42 /8s, 209 /16s and 96 /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: 117476
Total LACNIC prefixes after maximum aggregation: 28532
LACNIC Deaggregation factor: 4.12
Prefixes being announced from the LACNIC address blocks: 116671
Unique aggregates announced from the LACNIC address blocks: 49129
LACNIC Region origin ASes present in the Internet Routing Table: 11000
LACNIC Prefixes per ASN: 10.61
LACNIC Region origin ASes announcing only one prefix: 2663
LACNIC Region transit ASes present in the Internet Routing Table: 2281
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: 8776
Number of LACNIC addresses announced to Internet: 176175616
Equivalent to 10 /8s, 128 /16s and 58 /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: 28885
Total AfriNIC prefixes after maximum aggregation: 5731
AfriNIC Deaggregation factor: 5.04
Prefixes being announced from the AfriNIC address blocks: 36665
Unique aggregates announced from the AfriNIC address blocks: 12023
AfriNIC Region origin ASes present in the Internet Routing Table: 1718
AfriNIC Prefixes per ASN: 21.34
AfriNIC Region origin ASes announcing only one prefix: 605
AfriNIC Region transit ASes present in the Internet Routing Table: 331
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: 1064
Number of AfriNIC addresses announced to Internet: 108071936
Equivalent to 6 /8s, 113 /16s and 12 /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 9448 8884 50 CHINAMOBILE-CN China Mobile Communicati
7545 5875 786 703 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4859 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3636 1331 21 VIETEL-AS-AP Viettel Group, VN
7713 3504 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3376 1874 96 VNPT-AS-VN VNPT Corp, VN
9498 2721 499 238 BBIL-AP BHARTI Airtel Ltd., IN
4766 2528 11251 592 KIXS-AS-KR Korea Telecom, KR
24560 2363 847 437 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 7880 10722 2910 AMAZON-02, US
11492 4532 300 602 CABLEONE, US
7155 3899 265 33 VIASAT-SP-BACKBONE, US
22773 3663 3064 295 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3502 1320 63 SHAW, CA
16625 3307 1672 2421 AKAMAI-AS, US
749 3036 50571 2303 DNIC-AS-00749, US
7018 2590 24128 1572 ATT-INTERNET4, US
396982 2589 3496 365 GOOGLE-CLOUD-PLATFORM, US
30036 2567 367 356 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 6985 1706 146 UNI2-AS, ES
9121 6106 1692 17 TTNET, TR
39891 4561 269 58 ALJAWWALSTC-AS, SA
20940 4028 3399 177 AKAMAI-ASN1, NL
8551 3895 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2941 2290 908 ROSTELECOM-AS, RU
47331 2782 409 2090 TTNET, TR
9009 2695 256 1369 M247, RO
34984 2259 359 608 TELLCOM-AS, TR
6849 2197 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 11072 3346 588 Uninet S.A. de C.V., MX
10620 3479 508 859 Telmex Colombia S.A., CO
11830 2262 369 64 Instituto Costarricense de Electricidad
13999 2237 371 602 Mega Cable, S.A. de C.V., MX
28573 1353 2328 263 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 1151 369 22 Telefonica del Peru S.A.A., PE
11664 1108 181 460 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 1539 533 30 RAYA-AS, EG
24863 1501 393 21 LINKdotNET-AS, EG
36992 1347 1517 277 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 996 67 53 ORANGE-COTE-IVOIRE, CI
36935 884 520 42 Vodafone-, EG
6713 548 1861 34 IAM-AS, MA
15399 526 54 46 WANANCHI-, KE
37342 494 32 1 MOVITEL, MZ
24757 491 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 11072 3346 588 Uninet S.A. de C.V., MX
9808 9448 8884 50 CHINAMOBILE-CN China Mobile Communicati
16509 7880 10722 2910 AMAZON-02, US
12479 6985 1706 146 UNI2-AS, ES
9121 6106 1692 17 TTNET, TR
7545 5875 786 703 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4859 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4561 269 58 ALJAWWALSTC-AS, SA
11492 4532 300 602 CABLEONE, US
20940 4028 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 9448 9398 CHINAMOBILE-CN China Mobile Communications Grou
12479 6985 6839 UNI2-AS, ES
9121 6106 6089 TTNET, TR
7545 5875 5172 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 7880 4970 AMAZON-02, US
4538 4859 4784 ERX-CERNET-BKB China Education and Research Net
39891 4561 4503 ALJAWWALSTC-AS, SA
11492 4532 3930 CABLEONE, US
7155 3899 3866 VIASAT-SP-BACKBONE, US
8551 3895 3858 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 /15:2038 /16:13481 /17:8308 /18:13910
/19:25169 /20:44262 /21:52300 /22:110175 /23:98335 /24:548376
/25:807 /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 6048 6985 UNI2-AS, ES
9121 5285 6106 TTNET, TR
8151 5079 11072 Uninet S.A. de C.V., MX
39891 3552 4561 ALJAWWALSTC-AS, SA
11492 3447 4532 CABLEONE, US
8551 3367 3895 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3310 3502 SHAW, CA
7155 2988 3899 VIASAT-SP-BACKBONE, US
22773 2706 3663 ASN-CXA-ALL-CCI-22773-RDC, US
47331 2403 2782 TTNET, TR
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1642 2:1233 3:168 4:5 5:4247 6:114
7:5 8:1554 9:1 11:172 12:1588 13:375
14:2358 15:290 16:79 17:367 18:395 20:243
21:4 22:188 23:6060 24:2497 25:4 27:2643
29:19 31:2500 32:106 34:9 35:107 36:1887
37:4589 38:4087 39:836 40:154 41:3939 42:1061
43:2332 44:302 45:16418 46:4128 47:382 49:1748
50:1835 51:382 52:1551 54:395 55:857 56:8
57:79 58:1745 59:1165 60:993 61:2428 62:2624
63:1933 64:5661 65:2317 66:4916 67:3045 68:1349
69:4154 70:1254 71:660 72:2970 74:2599 75:1457
76:599 77:2400 78:3942 79:3173 80:2070 81:1854
82:1480 83:1239 84:1521 85:3767 86:752 87:1950
88:2887 89:3565 90:594 91:7643 92:2005 93:2597
94:3527 95:4863 96:1328 97:346 98:1159 99:740
100:75 101:1067 102:2545 103:30899 104:4573 105:484
106:848 107:2513 108:920 109:4381 110:2081 111:3337
112:2044 113:1546 114:1615 115:2037 116:1906 117:2553
118:2289 119:1907 120:1770 121:1119 122:2596 123:2148
124:1605 125:2360 128:1303 129:1058 130:981 131:1988
132:802 133:406 134:1910 135:297 136:865 137:925
138:2560 139:1550 140:1183 141:1469 142:1426 143:1497
144:1197 145:351 146:1879 147:1556 148:2296 149:1890
150:869 151:1139 152:1830 153:480 154:3933 155:1400
156:1668 157:1293 158:1016 159:2268 160:2541 161:1421
162:3519 163:1490 164:1618 165:1653 166:838 167:1733
168:3890 169:916 170:4571 171:883 172:3505 173:2962
174:1025 175:1168 176:3689 177:4597 178:3556 179:2141
180:2365 181:3387 182:3277 183:1933 184:2338 185:19999
186:4666 187:3923 188:4086 189:3491 190:9112 191:1437
192:10954 193:8817 194:7240 195:5122 196:3009 197:2405
198:5953 199:6105 200:7740 201:5859 202:10635 203:10033
204:4601 205:3523 206:3865 207:3412 208:4081 209:4821
210:4436 211:2498 212:4105 213:3554 214:1096 215:56
216:6596 217:2647 218:1278 219:567 220:2026 221:969
222:844 223:2082
End of report
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