[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Jul 18 20:16:37 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Fri 18 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: 277947
Prefixes after maximum aggregation (per Origin AS): 120871
Deaggregation factor: 2.30
Unique aggregates announced (without unneeded subnets): 143618
Number of IPv4 prefixes with a valid ROA: 130700
Number of IPv4 prefixes with an invalid ROA: 209
Number of IPv4 prefixes with no ROA: 147038
Total ASes present in the Internet Routing Table: 20996
Prefixes per ASN: 13.24
Origin-only ASes present in the Internet Routing Table: 18065
Origin ASes announcing only one prefix: 8091
Transit ASes present in the Internet Routing Table: 2931
Transit-only ASes present in the Internet Routing Table: 718
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: 358
Number of instances of unregistered ASNs: 390
Number of 32-bit ASNs allocated by the RIRs: 46864
Number of 32-bit ASNs visible in the Routing Table: 8450
Prefixes from 32-bit ASNs in the Routing Table: 33298
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: 106
Number of addresses announced to Internet: 1643133701
Equivalent to 97 /8s, 240 /16s and 59 /24s
Percentage of available address space announced: 44.4
Percentage of allocated address space announced: 44.4
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: 88513
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34667
Total APNIC prefixes after maximum aggregation: 7576
APNIC Deaggregation factor: 4.58
Prefixes being announced from the APNIC address blocks: 33569
Unique aggregates announced from the APNIC address blocks: 7954
APNIC Region origin ASes present in the Internet Routing Table: 1242
APNIC Prefixes per ASN: 27.03
APNIC Region origin ASes announcing only one prefix: 492
APNIC Region transit ASes present in the Internet Routing Table: 202
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: 584
Number of APNIC addresses announced to Internet: 173097580
Equivalent to 10 /8s, 81 /16s and 66 /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: 126295
Total ARIN prefixes after maximum aggregation: 66492
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 124887
Unique aggregates announced from the ARIN address blocks: 67960
ARIN Region origin ASes present in the Internet Routing Table: 9349
ARIN Prefixes per ASN: 13.36
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: 1028331785
Equivalent to 61 /8s, 75 /16s and 25 /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: 49745
Total RIPE prefixes after maximum aggregation: 27403
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 51250
Unique aggregates announced from the RIPE address blocks: 38180
RIPE Region origin ASes present in the Internet Routing Table: 4647
RIPE Prefixes per ASN: 11.03
RIPE Region origin ASes announcing only one prefix: 1953
RIPE Region transit ASes present in the Internet Routing Table: 699
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1912
Number of RIPE addresses announced to Internet: 286817104
Equivalent to 17 /8s, 24 /16s and 123 /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: 56919
Total LACNIC prefixes after maximum aggregation: 16800
LACNIC Deaggregation factor: 3.39
Prefixes being announced from the LACNIC address blocks: 55228
Unique aggregates announced from the LACNIC address blocks: 24978
LACNIC Region origin ASes present in the Internet Routing Table: 4610
LACNIC Prefixes per ASN: 11.98
LACNIC Region origin ASes announcing only one prefix: 1650
LACNIC Region transit ASes present in the Internet Routing Table: 930
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: 3592
Number of LACNIC addresses announced to Internet: 109071936
Equivalent to 6 /8s, 128 /16s and 78 /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: 9963
Total AfriNIC prefixes after maximum aggregation: 2335
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 12907
Unique aggregates announced from the AfriNIC address blocks: 4443
AfriNIC Region origin ASes present in the Internet Routing Table: 295
AfriNIC Prefixes per ASN: 43.75
AfriNIC Region origin ASes announcing only one prefix: 112
AfriNIC Region transit ASes present in the Internet Routing Table: 75
Average AfriNIC Region AS path length visible: 6.4
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 161
Number of AfriNIC addresses announced to Internet: 45697024
Equivalent to 2 /8s, 185 /16s and 72 /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 11632 8761 115 CHINAMOBILE-CN China Mobile Communication
56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati
56047 1629 192 50 CMNET-HUNAN-AP China Mobile communication
56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
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 13671 40973 5264 AMAZON-02, US
22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3223 54766 2474 DNIC-AS-00749, US
4155 2871 218 1735 USDA-1, US
36352 2552 209 1140 AS-COLOCROSSING, US
367 2488 3071 1167 DNIC-ASBLK-00306-00371, US
6167 1930 4018 516 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
7018 1672 22850 1259 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 1170 91 953 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 814 1301 130 SAUDINETSTC-AS, SA
8452 719 1841 16 TE-AS TE-AS, EG
58224 658 427 474 TCI, IR
212238 655 46 579 CDNEXT, GB
8376 571 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 7485 2011 898 UNINET, MX
11830 1987 369 64 Instituto Costarricense de Electricidad y
10620 1713 248 1233 Telmex Colombia S.A., CO
3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1195 371 22 Telefonica del Peru S.A.A., PE
26615 1017 2487 55 TIM SA, BR
18881 886 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
24835 1205 544 23 RAYA-AS, EG
29571 1157 101 66 ORANGE-COTE-IVOIRE, CI
37069 702 1112 11 MOBINIL, EG
36914 574 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
24863 517 389 22 LINKdotNET-AS, EG
36992 491 1027 213 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 13671 40973 5264 AMAZON-02, US
9808 11632 8761 115 CHINAMOBILE-CN China Mobile Communication
8151 7485 2011 898 UNINET, MX
22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3223 54766 2474 DNIC-AS-00749, US
4155 2871 218 1735 USDA-1, US
56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati
36352 2552 209 1140 AS-COLOCROSSING, US
367 2488 3071 1167 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 11632 11517 CHINAMOBILE-CN China Mobile Communications Grou
8151 7485 6587 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
56047 1629 1579 CMNET-HUNAN-AP China Mobile communications corp
56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c
6167 1930 1414 CELLCO-PART, 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 /12:159
/13:216 /14:591 /15:1116 /16:7724 /17:3485 /18:4221
/19:7739 /20:12982 /21:15905 /22:27625 /23:29453 /24:166389
/25:65 /26:82 /27:39 /28:18 /29:15 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 4025 7485 UNINET, MX
22773 2493 3338 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2336 13671 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 1021 2552 AS-COLOCROSSING, US
10620 995 1713 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 2:446 3:850 4:5 5:709 6:150
7:5 8:653 11:171 12:967 13:398 14:135
15:307 16:247 17:3 18:888 20:189 21:4
22:188 23:2661 24:685 27:43 29:19 31:519
32:18 33:1 34:10 35:177 36:2417 37:711
38:2630 39:556 40:84 41:1051 42:21 43:223
44:32 45:4391 46:995 47:109 49:26 50:414
51:387 52:1382 54:321 55:1113 56:11 57:24
58:18 59:35 60:31 61:63 62:512 63:786
64:1959 65:1131 66:1615 67:1097 68:370 69:1278
70:459 71:189 72:711 74:967 75:319 76:251
77:453 78:366 79:237 80:286 81:352 82:726
83:225 84:357 85:479 86:245 87:217 88:303
89:718 90:107 91:936 92:661 93:486 94:992
95:745 96:276 97:53 98:508 99:193 100:40
101:66 102:395 103:1303 104:1709 105:178 106:40
107:1530 108:440 109:437 110:44 111:1978 112:639
113:38 114:65 115:25 116:56 117:1100 118:69
119:82 120:1440 121:50 122:70 123:131 124:65
125:25 126:1 128:527 129:351 130:677 131:1016
132:559 133:212 134:474 135:127 136:675 137:531
138:1035 139:441 140:775 141:368 142:1024 143:815
144:439 145:118 146:686 147:519 148:1004 149:725
150:178 151:816 152:624 153:131 154:1209 155:911
156:1006 157:406 158:564 159:762 160:855 161:684
162:1060 163:442 164:720 165:580 166:817 167:702
168:1572 169:166 170:1767 171:111 172:1334 173:833
174:361 175:84 176:788 177:1055 178:485 179:880
180:41 181:2280 182:47 183:1059 184:457 185:3497
186:2863 187:1721 188:818 189:1994 190:6006 191:553
192:5286 193:1828 194:1245 195:951 196:708 197:1195
198:2754 199:5066 200:4698 201:3856 202:1001 203:725
204:2287 205:1847 206:1548 207:1616 208:1524 209:2021
210:362 211:465 212:1007 213:787 214:939 215:35
216:2561 217:447 218:550 219:18 220:36 221:455
222:24 223:1100
End of report
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