[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Wed Jul 16 20:16:44 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Wed 16 Jul, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 277373
Prefixes after maximum aggregation (per Origin AS): 120786
Deaggregation factor: 2.30
Unique aggregates announced (without unneeded subnets): 143541
Number of IPv4 prefixes with a valid ROA: 130660
Number of IPv4 prefixes with an invalid ROA: 213
Number of IPv4 prefixes with no ROA: 146500
Total ASes present in the Internet Routing Table: 21044
Prefixes per ASN: 13.18
Origin-only ASes present in the Internet Routing Table: 18112
Origin ASes announcing only one prefix: 8113
Transit ASes present in the Internet Routing Table: 2932
Transit-only ASes present in the Internet Routing Table: 727
Paths with bogon ASNs present in the IPv4 Routing Table: 13
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 30
Max AS path prepend of ASN (265171) 25
Prefixes from unregistered ASNs in the Routing Table: 353
Number of instances of unregistered ASNs: 385
Number of 32-bit ASNs allocated by the RIRs: 46838
Number of 32-bit ASNs visible in the Routing Table: 8492
Prefixes from 32-bit ASNs in the Routing Table: 33624
Number of bogon 32-bit ASNs visible in the Routing Table: 74
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 104
Number of addresses announced to Internet: 1646631685
Equivalent to 98 /8s, 37 /16s and 155 /24s
Percentage of available address space announced: 44.5
Percentage of allocated address space announced: 44.5
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: 88506
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34622
Total APNIC prefixes after maximum aggregation: 7638
APNIC Deaggregation factor: 4.53
Prefixes being announced from the APNIC address blocks: 33465
Unique aggregates announced from the APNIC address blocks: 7966
APNIC Region origin ASes present in the Internet Routing Table: 1243
APNIC Prefixes per ASN: 26.92
APNIC Region origin ASes announcing only one prefix: 494
APNIC Region transit ASes present in the Internet Routing Table: 200
Average APNIC Region AS path length visible: 7.4
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 590
Number of APNIC addresses announced to Internet: 173095276
Equivalent to 10 /8s, 81 /16s and 57 /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: 125968
Total ARIN prefixes after maximum aggregation: 66309
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 124593
Unique aggregates announced from the ARIN address blocks: 67783
ARIN Region origin ASes present in the Internet Routing Table: 9342
ARIN Prefixes per ASN: 13.34
ARIN Region origin ASes announcing only one prefix: 3884
ARIN Region transit ASes present in the Internet Routing Table: 883
Average ARIN Region AS path length visible: 5.4
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2201
Number of ARIN addresses announced to Internet: 1028036873
Equivalent to 61 /8s, 70 /16s and 153 /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: 49802
Total RIPE prefixes after maximum aggregation: 27437
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 51306
Unique aggregates announced from the RIPE address blocks: 38221
RIPE Region origin ASes present in the Internet Routing Table: 4651
RIPE Prefixes per ASN: 11.03
RIPE Region origin ASes announcing only one prefix: 1956
RIPE Region transit ASes present in the Internet Routing Table: 701
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1917
Number of RIPE addresses announced to Internet: 286611280
Equivalent to 17 /8s, 21 /16s and 87 /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: 57134
Total LACNIC prefixes after maximum aggregation: 16884
LACNIC Deaggregation factor: 3.38
Prefixes being announced from the LACNIC address blocks: 55420
Unique aggregates announced from the LACNIC address blocks: 25111
LACNIC Region origin ASes present in the Internet Routing Table: 4659
LACNIC Prefixes per ASN: 11.90
LACNIC Region origin ASes announcing only one prefix: 1674
LACNIC Region transit ASes present in the Internet Routing Table: 931
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3630
Number of LACNIC addresses announced to Internet: 109155392
Equivalent to 6 /8s, 129 /16s and 148 /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: 9494
Total AfriNIC prefixes after maximum aggregation: 2257
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 12485
Unique aggregates announced from the AfriNIC address blocks: 4358
AfriNIC Region origin ASes present in the Internet Routing Table: 289
AfriNIC Prefixes per ASN: 43.20
AfriNIC Region origin ASes announcing only one prefix: 105
AfriNIC Region transit ASes present in the Internet Routing Table: 70
Average AfriNIC Region AS path length visible: 6.6
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 154
Number of AfriNIC addresses announced to Internet: 49619712
Equivalent to 2 /8s, 245 /16s and 35 /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 11627 8761 115 CHINAMOBILE-CN China Mobile Communication
56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati
56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1501 192 50 CMNET-HUNAN-AP China Mobile communication
24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 613 2169 463 SINET-AS Research Organization of Informa
45102 536 884 140 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic
132525 456 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13611 40955 5247 AMAZON-02, US
22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3224 54766 2475 DNIC-AS-00749, US
4155 2865 217 1731 USDA-1, US
36352 2555 210 1143 AS-COLOCROSSING, US
367 2503 3056 1179 DNIC-ASBLK-00306-00371, US
6167 1927 4012 517 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
7018 1728 22853 1280 ATT-INTERNET4, US
209 1657 4889 270 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1184 93 962 AKAMAI-ASN1, NL
3257 1047 2083 810 GTT-BACKBONE GTT, US
34984 925 116 596 TELLCOM-AS, TR
3215 887 4818 291 France Telecom - Orange, FR
25019 809 1301 130 SAUDINETSTC-AS, SA
8452 715 1841 16 TE-AS TE-AS, EG
58224 658 427 474 TCI, IR
212238 656 46 580 CDNEXT, GB
8376 569 52 23 Jordan Data Communications, JO
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7490 2012 899 UNINET, MX
11830 1987 369 64 Instituto Costarricense de Electricidad y
10620 1712 248 1232 Telmex Colombia S.A., CO
3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1196 371 21 Telefonica del Peru S.A.A., PE
26615 1017 2487 55 TIM SA, BR
18881 885 1127 31 TELEFONICA BRASIL S.A, BR
11172 725 124 69 Alestra, S. de R.L. de C.V., MX
27651 650 92 46 ENTEL CHILE S.A., CL
28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
29571 1154 101 66 ORANGE-COTE-IVOIRE, CI
24835 941 544 23 RAYA-AS, EG
37069 702 1112 11 MOBINIL, EG
36914 571 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
24863 509 389 22 LINKdotNET-AS, EG
36992 504 1064 220 ETISALAT-MISR, EG
36903 456 204 330 MT-MPLS, MA
2018 375 318 69 TENET-1, ZA
36935 357 515 9 Vodafone-, EG
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13611 40955 5247 AMAZON-02, US
9808 11627 8761 115 CHINAMOBILE-CN China Mobile Communication
8151 7490 2012 899 UNINET, MX
22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3224 54766 2475 DNIC-AS-00749, US
4155 2865 217 1731 USDA-1, US
56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati
36352 2555 210 1143 AS-COLOCROSSING, US
367 2503 3056 1179 DNIC-ASBLK-00306-00371, US
11830 1987 369 64 Instituto Costarricense de Electricidad y
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 11627 11512 CHINAMOBILE-CN China Mobile Communications Grou
8151 7490 6591 UNINET, MX
22773 3338 3174 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2677 2489 CMNET-JIANGSU-AP China Mobile communications co
11830 1987 1923 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1902 1687 ATLANTICBB-JOHNSTOWN, US
56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c
56047 1501 1451 CMNET-HUNAN-AP China Mobile communications corp
36352 2555 1412 AS-COLOCROSSING, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US
21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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://bgp.nsrc.org/REN/KREONet2/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
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
23.147.224.0/24 Origin: 27392 639-DATACENTERS, US
23.147.224.0/24 Transit: 3356 LEVEL3, US
23.147.225.0/24 Origin: 27392 639-DATACENTERS, US
23.147.225.0/24 Transit: 3356 LEVEL3, US
23.147.226.0/24 Origin: 27392 639-DATACENTERS, US
23.147.226.0/24 Transit: 3356 LEVEL3, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:14 /9:11 /10:31 /11:51 /12:162
/13:219 /14:590 /15:1108 /16:7713 /17:3480 /18:4217
/19:7703 /20:12970 /21:15878 /22:27426 /23:29365 /24:166200
/25:65 /26:82 /27:38 /28:18 /29:16 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 4030 7490 UNINET, MX
22773 2493 3338 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2329 13611 AMAZON-02, US
11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
19901 1028 1350 BRSPD-PUBLIC, US
36352 1022 2555 AS-COLOCROSSING, US
10620 994 1712 Telmex Colombia S.A., CO
209 962 1657 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1902 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:36 2:445 3:843 4:5 5:714 6:150
7:5 8:648 11:171 12:966 13:390 14:134
15:307 16:247 17:3 18:882 20:188 21:4
22:188 23:2667 24:689 27:43 29:19 31:518
32:18 33:1 34:10 35:175 36:2337 37:702
38:2611 39:554 40:84 41:1030 42:21 43:226
44:29 45:4414 46:995 47:110 49:26 50:417
51:390 52:1383 54:318 55:1108 56:11 57:24
58:18 59:35 60:31 61:62 62:543 63:784
64:1928 65:1126 66:1607 67:1095 68:370 69:1258
70:459 71:190 72:705 74:969 75:319 76:243
77:486 78:375 79:237 80:287 81:358 82:721
83:225 84:364 85:479 86:244 87:217 88:303
89:717 90:107 91:933 92:659 93:486 94:987
95:745 96:274 97:53 98:509 99:197 100:42
101:64 102:393 103:1332 104:1709 105:172 106:40
107:1531 108:518 109:436 110:44 111:1954 112:634
113:37 114:63 115:25 116:59 117:1098 118:69
119:80 120:1424 121:50 122:70 123:131 124:65
125:25 126:1 128:526 129:351 130:676 131:1021
132:558 133:212 134:475 135:127 136:676 137:532
138:1027 139:446 140:775 141:371 142:1024 143:806
144:439 145:120 146:689 147:521 148:988 149:727
150:180 151:816 152:627 153:134 154:1238 155:906
156:1016 157:396 158:564 159:757 160:855 161:658
162:1067 163:442 164:726 165:578 166:816 167:704
168:1574 169:165 170:1784 171:109 172:1330 173:834
174:360 175:85 176:788 177:1075 178:487 179:882
180:41 181:2272 182:47 183:1054 184:461 185:3502
186:2869 187:1717 188:812 189:2002 190:6021 191:553
192:5285 193:1826 194:1255 195:946 196:719 197:1083
198:2756 199:5045 200:4728 201:3879 202:1004 203:709
204:2226 205:1850 206:1541 207:1617 208:1517 209:2007
210:362 211:464 212:1000 213:785 214:938 215:35
216:2572 217:451 218:550 219:18 220:37 221:455
222:24 223:1098
End of report
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