[afnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri May 30 18:02:16 UTC 2025
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
UKNOF, 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 31 May, 2025
IPv4 BGP Table (Global) as seen at Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 985921
Prefixes after maximum aggregation (per Origin AS): 380656
Deaggregation factor: 2.59
Unique aggregates announced (without unneeded subnets): 482972
Number of IPv4 prefixes with a valid ROA: 543024
Number of IPv4 prefixes with an invalid ROA: 1315
Number of IPv4 prefixes with no ROA: 441582
Total ASes present in the Internet Routing Table: 76950
Prefixes per ASN: 12.81
Origin-only ASes present in the Internet Routing Table: 65862
Origin ASes announcing only one prefix: 26966
Transit ASes present in the Internet Routing Table: 11088
Transit-only ASes present in the Internet Routing Table: 557
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 152
Max AS path prepend of ASN (150261) 150
Prefixes from unregistered ASNs in the Routing Table: 1016
Number of instances of unregistered ASNs: 1029
Number of 32-bit ASNs allocated by the RIRs: 46546
Number of 32-bit ASNs visible in the Routing Table: 38337
Prefixes from 32-bit ASNs in the Routing Table: 204194
Number of bogon 32-bit ASNs visible in the Routing Table: 46
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 443
Number of addresses announced to Internet: 3111182720
Equivalent to 185 /8s, 112 /16s and 225 /24s
Percentage of available address space announced: 84.0
Percentage of allocated address space announced: 84.0
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: 322389
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 259242
Total APNIC prefixes after maximum aggregation: 77989
APNIC Deaggregation factor: 3.32
Prefixes being announced from the APNIC address blocks: 250277
Unique aggregates announced from the APNIC address blocks: 104342
APNIC Region origin ASes present in the Internet Routing Table: 14645
APNIC Prefixes per ASN: 17.09
APNIC Region origin ASes announcing only one prefix: 4455
APNIC Region transit ASes present in the Internet Routing Table: 1955
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 152
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10140
Number of APNIC addresses announced to Internet: 749584384
Equivalent to 44 /8s, 173 /16s and 192 /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, 131072-155961
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: 291365
Total ARIN prefixes after maximum aggregation: 131338
ARIN Deaggregation factor: 2.22
Prefixes being announced from the ARIN address blocks: 291962
Unique aggregates announced from the ARIN address blocks: 139565
ARIN Region origin ASes present in the Internet Routing Table: 19248
ARIN Prefixes per ASN: 15.17
ARIN Region origin ASes announcing only one prefix: 7042
ARIN Region transit ASes present in the Internet Routing Table: 1999
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5227
Number of ARIN addresses announced to Internet: 1352670464
Equivalent to 80 /8s, 160 /16s and 29 /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, 393216-402332
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, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 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: 274531
Total RIPE prefixes after maximum aggregation: 134444
RIPE Deaggregation factor: 2.04
Prefixes being announced from the RIPE address blocks: 272807
Unique aggregates announced from the RIPE address blocks: 175202
RIPE Region origin ASes present in the Internet Routing Table: 28956
RIPE Prefixes per ASN: 9.42
RIPE Region origin ASes announcing only one prefix: 12096
RIPE Region transit ASes present in the Internet Routing Table: 4017
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 69
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12469
Number of RIPE addresses announced to Internet: 731677312
Equivalent to 43 /8s, 156 /16s and 130 /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
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 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: 124239
Total LACNIC prefixes after maximum aggregation: 29552
LACNIC Deaggregation factor: 4.20
Prefixes being announced from the LACNIC address blocks: 120623
Unique aggregates announced from the LACNIC address blocks: 48961
LACNIC Region origin ASes present in the Internet Routing Table: 11264
LACNIC Prefixes per ASN: 10.71
LACNIC Region origin ASes announcing only one prefix: 2682
LACNIC Region transit ASes present in the Internet Routing Table: 2540
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 75
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9223
Number of LACNIC addresses announced to Internet: 171972608
Equivalent to 10 /8s, 64 /16s and 24 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + 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: 35528
Total AfriNIC prefixes after maximum aggregation: 6700
AfriNIC Deaggregation factor: 5.30
Prefixes being announced from the AfriNIC address blocks: 49809
Unique aggregates announced from the AfriNIC address blocks: 14496
AfriNIC Region origin ASes present in the Internet Routing Table: 1914
AfriNIC Prefixes per ASN: 26.02
AfriNIC Region origin ASes announcing only one prefix: 691
AfriNIC Region transit ASes present in the Internet Routing Table: 377
Average AfriNIC Region AS path length visible: 5.9
Max AfriNIC Region AS path length visible: 80
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1278
Number of AfriNIC addresses announced to Internet: 105083392
Equivalent to 6 /8s, 67 /16s and 114 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 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 11131 8757 102 CHINAMOBILE-CN China Mobile Communication
7545 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4778 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4390 534 305 BBIL-AP BHARTI Airtel Ltd., IN
7552 3921 1332 26 VIETEL-AS-AP Viettel Group, VN
7713 3696 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3287 1869 103 VNPT-AS-VN VNPT Corp, VN
24560 2879 854 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2371 11522 627 KIXS-AS-KR Korea Telecom, KR
45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer
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 13569 40828 5196 AMAZON-02, US
11492 4735 314 586 CABLEONE, US
7155 3864 286 85 VIASAT-SP-BACKBONE, US
6327 3631 1320 81 SHAW, CA
174 3365 8746 890 COGENT-174, US
22773 3348 3033 170 ASN-CXA-ALL-CCI-22773-RDC, US
749 3230 54783 2481 DNIC-AS-00749, US
396982 3175 3853 420 GOOGLE-CLOUD-PLATFORM, US
16625 3022 1258 2229 AKAMAI-AS, US
36352 2817 230 853 AS-COLOCROSSING, 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 7720 1714 148 UNI2-AS, ES
39891 4798 293 63 ALJAWWALSTC-AS, SA
20940 3963 3395 127 AKAMAI-ASN1, NL
9009 3898 356 2071 M247, RO
12389 3082 2306 890 ROSTELECOM-AS PJSC Rostelecom. Technical
34984 2391 360 580 TELLCOM-AS, TR
212238 2221 161 1635 CDNEXT, GB
8452 1611 1852 14 TE-AS TE-AS, EG
13188 1606 100 34 TRIOLAN, UA
62240 1425 95 740 CLOUVIDER Clouvider - Global ASN, GB
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 12169 3253 582 UNINET, MX
10620 3499 480 1017 Telmex Colombia S.A., CO
13999 2512 540 362 Mega Cable, S.A. de C.V., MX
11830 1990 369 64 Instituto Costarricense de Electricidad y
28573 1361 2438 262 Claro NXT Telecomunicacoes Ltda, BR
3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1198 371 22 Telefonica del Peru S.A.A., PE
11664 1190 278 33 Techtel LMDS Comunicaciones Interactivas
22884 1060 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
26615 1035 2503 52 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 1780 644 27 RAYA-AS, EG
24863 1652 389 16 LINKdotNET-AS, EG
29571 1610 102 33 ORANGE-COTE-IVOIRE, CI
36992 1431 1519 280 ETISALAT-MISR, EG
36903 1250 554 97 MT-MPLS, MA
37069 1107 1100 18 MOBINIL, EG
36935 1054 523 47 Vodafone-, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
36914 558 82 3 KENET-AS, KE
15399 541 57 59 WANANCHI-, KE
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
16509 13569 40828 5196 AMAZON-02, US
8151 12169 3253 582 UNINET, MX
9808 11131 8757 102 CHINAMOBILE-CN China Mobile Communication
12479 7720 1714 148 UNI2-AS, ES
7545 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4798 293 63 ALJAWWALSTC-AS, SA
4538 4778 4192 76 ERX-CERNET-BKB China Education and Resear
11492 4735 314 586 CABLEONE, US
9498 4390 534 305 BBIL-AP BHARTI Airtel Ltd., IN
20940 3963 3395 127 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
8151 12169 11587 UNINET, MX
9808 11131 11029 CHINAMOBILE-CN China Mobile Communications Grou
12479 7720 7572 UNI2-AS, ES
7545 6177 5528 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4798 4735 ALJAWWALSTC-AS, SA
4538 4778 4702 ERX-CERNET-BKB China Education and Research Net
11492 4735 4149 CABLEONE, US
9498 4390 4085 BBIL-AP BHARTI Airtel Ltd., IN
7552 3921 3895 VIETEL-AS-AP Viettel Group, VN
20940 3963 3836 AKAMAI-ASN1, NL
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
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US
396894 UNALLOCATED 8.28.201.0/24 46887 CROWNCASTLE-AS46887, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, 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
14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US
14.192.20.0/22 Transit: 6939 HURRICANE, US
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 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.147.240.0/24 Origin: 32302 RESERVED, ZZ
23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
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 /9:16 /10:41 /11:92 /12:299
/13:581 /14:1212 /15:2144 /16:13918 /17:8330 /18:13775
/19:24844 /20:44780 /21:52151 /22:112309 /23:102364 /24:608251
/25:798 /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 6635 7720 UNI2-AS, ES
8151 6362 12169 UNINET, MX
11492 3532 4735 CABLEONE, US
39891 3489 4798 ALJAWWALSTC-AS, SA
6327 3426 3631 SHAW, CA
7155 2823 3864 VIASAT-SP-BACKBONE, US
22773 2496 3348 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2389 13569 AMAZON-02, US
30036 2237 2578 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2186 3499 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1716 2:1504 3:797 4:9 5:4659 6:162
7:6 8:1599 9:1 11:172 12:1361 13:429
14:2559 15:358 16:285 17:377 18:918 20:542
21:4 22:188 23:7548 24:2750 25:2 27:2707
29:19 31:3283 32:39 33:1 34:83 35:214
36:3032 37:4632 38:9194 39:910 40:170 41:4225
42:955 43:2578 44:378 45:18590 46:5081 47:320
49:1938 50:1886 51:592 52:1568 54:321 55:1098
56:11 57:265 58:2146 59:1370 60:1168 61:2805
62:2931 63:1805 64:5445 65:2175 66:4628 67:3045
68:1129 69:3853 70:1078 71:631 72:2844 74:2784
75:1508 76:621 77:2700 78:1892 79:1692 80:2220
81:2063 82:3099 83:1453 84:1865 85:3428 86:1067
87:2383 88:1290 89:4398 90:776 91:8376 92:2714
93:2911 94:4061 95:4335 96:1418 97:316 98:978
99:689 100:72 101:1221 102:3862 103:32235 104:5056
105:764 106:1036 107:2650 108:1258 109:4059 110:2247
111:3342 112:2117 113:1532 114:1978 115:2119 116:2052
117:2535 118:2368 119:1934 120:1988 121:1432 122:2777
123:2181 124:1632 125:2889 126:91 128:1598 129:968
130:1316 131:1978 132:785 133:449 134:1535 135:333
136:1350 137:1176 138:2885 139:1583 140:1606 141:1505
142:1907 143:1788 144:1150 145:509 146:2191 147:2109
148:2702 149:2888 150:1245 151:1938 152:2090 153:503
154:8008 155:1986 156:3302 157:1907 158:1329 159:2482
160:3821 161:1844 162:3774 163:2180 164:1720 165:2221
166:1494 167:1927 168:4320 169:794 170:5082 171:1010
172:4432 173:3307 174:916 175:1294 176:3700 177:4715
178:3647 179:2315 180:2630 181:4088 182:3442 183:1855
184:2069 185:21589 186:5148 187:4502 188:4235 189:4288
190:9555 191:1471 192:11307 193:9467 194:7794 195:5550
196:3264 197:3661 198:6207 199:8534 200:8217 201:6342
202:10459 203:10572 204:4567 205:3636 206:4508 207:3579
208:4230 209:5174 210:4840 211:2638 212:4571 213:3734
214:1029 215:48 216:6735 217:3118 218:1406 219:545
220:2092 221:1105 222:855 223:2428
End of report
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