[cmNOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri May 19 18:03:34 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 20 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: 924080
Prefixes after maximum aggregation (per Origin AS): 349822
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 449331
Total ASes present in the Internet Routing Table: 74455
Prefixes per ASN: 12.41
Origin-only ASes present in the Internet Routing Table: 63908
Origin ASes announcing only one prefix: 26264
Transit ASes present in the Internet Routing Table: 10547
Transit-only ASes present in the Internet Routing Table: 432
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: 1074
Number of instances of unregistered ASNs: 1075
Number of 32-bit ASNs allocated by the RIRs: 41898
Number of 32-bit ASNs visible in the Routing Table: 34608
Prefixes from 32-bit ASNs in the Routing Table: 171767
Number of bogon 32-bit ASNs visible in the Routing Table: 15
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 622
Number of addresses announced to Internet: 3057966848
Equivalent to 182 /8s, 68 /16s and 223 /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: 308506
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 245522
Total APNIC prefixes after maximum aggregation: 69449
APNIC Deaggregation factor: 3.54
Prefixes being announced from the APNIC address blocks: 239730
Unique aggregates announced from the APNIC address blocks: 98339
APNIC Region origin ASes present in the Internet Routing Table: 13441
APNIC Prefixes per ASN: 17.84
APNIC Region origin ASes announcing only one prefix: 3959
APNIC Region transit ASes present in the Internet Routing Table: 1799
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: 8741
Number of APNIC addresses announced to Internet: 773621376
Equivalent to 46 /8s, 28 /16s and 134 /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: 269926
Total ARIN prefixes after maximum aggregation: 122680
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 272754
Unique aggregates announced from the ARIN address blocks: 130386
ARIN Region origin ASes present in the Internet Routing Table: 19115
ARIN Prefixes per ASN: 14.27
ARIN Region origin ASes announcing only one prefix: 6984
ARIN Region transit ASes present in the Internet Routing Table: 1960
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 29
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4800
Number of ARIN addresses announced to Internet: 1281265664
Equivalent to 76 /8s, 94 /16s and 144 /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: 260002
Total RIPE prefixes after maximum aggregation: 122558
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 255899
Unique aggregates announced from the RIPE address blocks: 158414
RIPE Region origin ASes present in the Internet Routing Table: 28333
RIPE Prefixes per ASN: 9.03
RIPE Region origin ASes announcing only one prefix: 12060
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: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11194
Number of RIPE addresses announced to Internet: 717968512
Equivalent to 42 /8s, 203 /16s and 84 /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: 118348
Total LACNIC prefixes after maximum aggregation: 28519
LACNIC Deaggregation factor: 4.15
Prefixes being announced from the LACNIC address blocks: 117547
Unique aggregates announced from the LACNIC address blocks: 49414
LACNIC Region origin ASes present in the Internet Routing Table: 11000
LACNIC Prefixes per ASN: 10.69
LACNIC Region origin ASes announcing only one prefix: 2649
LACNIC Region transit ASes present in the Internet Routing Table: 2285
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: 8785
Number of LACNIC addresses announced to Internet: 176955136
Equivalent to 10 /8s, 140 /16s and 31 /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: 29208
Total AfriNIC prefixes after maximum aggregation: 5837
AfriNIC Deaggregation factor: 5.00
Prefixes being announced from the AfriNIC address blocks: 37528
Unique aggregates announced from the AfriNIC address blocks: 12260
AfriNIC Region origin ASes present in the Internet Routing Table: 1743
AfriNIC Prefixes per ASN: 21.53
AfriNIC Region origin ASes announcing only one prefix: 612
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: 1088
Number of AfriNIC addresses announced to Internet: 107748096
Equivalent to 6 /8s, 108 /16s and 27 /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 9500 8706 40 CHINAMOBILE-CN China Mobile Communicati
7545 5718 784 689 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4864 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4131 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3561 1043 66 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3394 1872 93 VNPT-AS-VN VNPT Corp, VN
7552 3229 1331 21 VIETEL-AS-AP Viettel Group, VN
9498 2961 491 241 BBIL-AP BHARTI Airtel Ltd., IN
4766 2547 11251 591 KIXS-AS-KR Korea Telecom, KR
24560 2399 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 8277 10775 2955 AMAZON-02, US
11492 4537 300 609 CABLEONE, US
7155 4020 281 51 VIASAT-SP-BACKBONE, US
22773 3566 3051 270 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3526 1320 64 SHAW, CA
749 3099 54980 2351 DNIC-AS-00749, US
16625 3099 1559 2343 AKAMAI-AS, US
396982 2656 3592 373 GOOGLE-CLOUD-PLATFORM, US
30036 2500 361 448 MEDIACOM-ENTERPRISE-BUSINESS, US
7018 2495 24148 1570 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 7312 1707 141 UNI2-AS, ES
39891 4765 282 59 ALJAWWALSTC-AS, SA
20940 4105 3399 163 AKAMAI-ASN1, NL
8551 3880 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2948 2292 910 ROSTELECOM-AS, RU
9009 2700 249 1398 M247, RO
34984 2280 360 609 TELLCOM-AS, TR
6849 2017 307 17 UKRTELNET, UA
58224 1840 948 547 TCI, IR
61317 1610 108 1213 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 11304 3348 593 Uninet S.A. de C.V., MX
10620 3517 508 854 Telmex Colombia S.A., CO
13999 2346 361 620 Mega Cable, S.A. de C.V., MX
11830 2270 369 64 Instituto Costarricense de Electricidad
28573 1330 2323 240 Claro NXT Telecomunicacoes Ltda, BR
6503 1300 339 514 Axtel, S.A.B. de C.V., MX
3816 1295 766 172 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1134 370 22 Telefonica del Peru S.A.A., PE
11664 1095 180 441 Techtel LMDS Comunicaciones Interactiva
26615 1035 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 1605 393 19 LINKdotNET-AS, EG
24835 1496 533 29 RAYA-AS, EG
36992 1338 1518 275 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1028 67 47 ORANGE-COTE-IVOIRE, CI
36935 917 520 42 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
15399 532 54 48 WANANCHI-, KE
24757 491 73 5 EthioNet-AS, ET
37342 489 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 11304 3348 593 Uninet S.A. de C.V., MX
9808 9500 8706 40 CHINAMOBILE-CN China Mobile Communicati
16509 8277 10775 2955 AMAZON-02, US
12479 7312 1707 141 UNI2-AS, ES
7545 5718 784 689 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4864 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4765 282 59 ALJAWWALSTC-AS, SA
11492 4537 300 609 CABLEONE, US
18403 4131 347 25 FPT-AS-AP FPT Telecom Company, VN
20940 4105 3399 163 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 9500 9460 CHINAMOBILE-CN China Mobile Communications Grou
12479 7312 7171 UNI2-AS, ES
16509 8277 5322 AMAZON-02, US
7545 5718 5029 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4864 4789 ERX-CERNET-BKB China Education and Research Net
39891 4765 4706 ALJAWWALSTC-AS, SA
18403 4131 4106 FPT-AS-AP FPT Telecom Company, VN
7155 4020 3969 VIASAT-SP-BACKBONE, US
20940 4105 3942 AKAMAI-ASN1, NL
11492 4537 3928 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 /11:104 /12:301
/13:581 /14:1200 /15:2053 /16:13479 /17:8235 /18:13852
/19:25136 /20:44172 /21:51371 /22:109824 /23:98240 /24:554716
/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 6382 7312 UNI2-AS, ES
8151 5268 11304 Uninet S.A. de C.V., MX
39891 3628 4765 ALJAWWALSTC-AS, SA
11492 3444 4537 CABLEONE, US
8551 3352 3880 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3335 3526 SHAW, CA
7155 3070 4020 VIASAT-SP-BACKBONE, US
22773 2635 3566 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2156 2500 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2070 3517 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2169 2:1310 3:175 4:5 5:4537 6:130
7:6 8:1553 9:1 11:172 12:1537 13:388
14:2314 15:303 16:188 17:373 18:417 20:258
21:4 22:188 23:6279 24:2606 25:6 27:2463
29:19 31:2492 32:79 34:21 35:112 36:1962
37:4686 38:4636 39:845 40:152 41:3920 42:1962
43:2363 44:310 45:16522 46:4325 47:363 49:1766
50:1859 51:571 52:1600 54:392 55:855 56:8
57:113 58:1890 59:1153 60:987 61:2504 62:2683
63:1927 64:5673 65:2323 66:5033 67:2996 68:1345
69:4109 70:1223 71:670 72:2992 74:2616 75:1557
76:609 77:2449 78:1818 79:3169 80:2122 81:1784
82:1501 83:1276 84:1531 85:2988 86:769 87:2012
88:1171 89:3712 90:618 91:7745 92:2062 93:2619
94:3625 95:4034 96:1308 97:336 98:1152 99:746
100:73 101:1074 102:2689 103:31360 104:4690 105:493
106:952 107:2583 108:1042 109:4415 110:2116 111:3158
112:2037 113:1778 114:1652 115:1979 116:1917 117:2532
118:2616 119:2015 120:1826 121:1130 122:2600 123:2179
124:1610 125:2500 128:1403 129:1026 130:1024 131:1984
132:811 133:422 134:1928 135:305 136:877 137:951
138:2560 139:1565 140:1248 141:1436 142:1458 143:1509
144:1153 145:346 146:1933 147:1586 148:2383 149:2245
150:875 151:1157 152:1826 153:487 154:4404 155:1442
156:1787 157:1317 158:1077 159:2235 160:2540 161:1541
162:3516 163:1526 164:1613 165:1740 166:1076 167:1730
168:3882 169:939 170:4585 171:877 172:3562 173:2958
174:1077 175:1180 176:3716 177:4622 178:3598 179:2212
180:2589 181:3493 182:3392 183:2102 184:2352 185:20272
186:4744 187:4012 188:4120 189:3634 190:9172 191:1444
192:10937 193:8872 194:7308 195:5195 196:3094 197:2378
198:5959 199:6085 200:8055 201:5905 202:10686 203:10304
204:4578 205:3702 206:4292 207:3460 208:4103 209:4901
210:4447 211:2511 212:4174 213:3620 214:1090 215:59
216:6651 217:2697 218:1298 219:578 220:1991 221:976
222:883 223:2183
End of report
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