[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu Jul 24 20:16:36 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Thu 24 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: 281309
Prefixes after maximum aggregation (per Origin AS): 121161
Deaggregation factor: 2.32
Unique aggregates announced (without unneeded subnets): 143813
Number of IPv4 prefixes with a valid ROA: 131247
Number of IPv4 prefixes with an invalid ROA: 213
Number of IPv4 prefixes with no ROA: 149849
Total ASes present in the Internet Routing Table: 20968
Prefixes per ASN: 13.42
Origin-only ASes present in the Internet Routing Table: 18057
Origin ASes announcing only one prefix: 8099
Transit ASes present in the Internet Routing Table: 2911
Transit-only ASes present in the Internet Routing Table: 723
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: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 351
Number of instances of unregistered ASNs: 383
Number of 32-bit ASNs allocated by the RIRs: 46895
Number of 32-bit ASNs visible in the Routing Table: 8385
Prefixes from 32-bit ASNs in the Routing Table: 33463
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: 107
Number of addresses announced to Internet: 1651064581
Equivalent to 98 /8s, 105 /16s and 63 /24s
Percentage of available address space announced: 44.6
Percentage of allocated address space announced: 44.6
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: 89905
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35178
Total APNIC prefixes after maximum aggregation: 7683
APNIC Deaggregation factor: 4.58
Prefixes being announced from the APNIC address blocks: 34164
Unique aggregates announced from the APNIC address blocks: 8085
APNIC Region origin ASes present in the Internet Routing Table: 1240
APNIC Prefixes per ASN: 27.55
APNIC Region origin ASes announcing only one prefix: 497
APNIC Region transit ASes present in the Internet Routing Table: 194
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: 577
Number of APNIC addresses announced to Internet: 173364588
Equivalent to 10 /8s, 85 /16s and 85 /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: 126646
Total ARIN prefixes after maximum aggregation: 66703
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 125227
Unique aggregates announced from the ARIN address blocks: 68243
ARIN Region origin ASes present in the Internet Routing Table: 9367
ARIN Prefixes per ASN: 13.37
ARIN Region origin ASes announcing only one prefix: 3900
ARIN Region transit ASes present in the Internet Routing Table: 885
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: 2206
Number of ARIN addresses announced to Internet: 1029652233
Equivalent to 61 /8s, 95 /16s and 63 /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: 51510
Total RIPE prefixes after maximum aggregation: 27627
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 52873
Unique aggregates announced from the RIPE address blocks: 38527
RIPE Region origin ASes present in the Internet Routing Table: 4674
RIPE Prefixes per ASN: 11.31
RIPE Region origin ASes announcing only one prefix: 1962
RIPE Region transit ASes present in the Internet Routing Table: 706
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1927
Number of RIPE addresses announced to Internet: 292447568
Equivalent to 17 /8s, 110 /16s and 101 /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: 56521
Total LACNIC prefixes after maximum aggregation: 16578
LACNIC Deaggregation factor: 3.41
Prefixes being announced from the LACNIC address blocks: 54784
Unique aggregates announced from the LACNIC address blocks: 24522
LACNIC Region origin ASes present in the Internet Routing Table: 4539
LACNIC Prefixes per ASN: 12.07
LACNIC Region origin ASes announcing only one prefix: 1629
LACNIC Region transit ASes present in the Internet Routing Table: 913
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: 3522
Number of LACNIC addresses announced to Internet: 109605440
Equivalent to 6 /8s, 136 /16s and 114 /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: 11103
Total AfriNIC prefixes after maximum aggregation: 2306
AfriNIC Deaggregation factor: 4.81
Prefixes being announced from the AfriNIC address blocks: 14154
Unique aggregates announced from the AfriNIC address blocks: 4333
AfriNIC Region origin ASes present in the Internet Routing Table: 290
AfriNIC Prefixes per ASN: 48.81
AfriNIC Region origin ASes announcing only one prefix: 111
AfriNIC Region transit ASes present in the Internet Routing Table: 73
Average AfriNIC Region AS path length visible: 6.4
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 153
Number of AfriNIC addresses announced to Internet: 45868032
Equivalent to 2 /8s, 187 /16s and 228 /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 11850 8761 115 CHINAMOBILE-CN China Mobile Communication
56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati
56041 1642 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1641 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 468 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 13688 40976 5290 AMAZON-02, US
22773 3336 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3223 54766 2474 DNIC-AS-00749, US
4155 2845 216 1733 USDA-1, US
36352 2554 209 1144 AS-COLOCROSSING, US
367 2487 3043 1169 DNIC-ASBLK-00306-00371, US
6167 1934 4020 520 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
7018 1656 22847 1245 ATT-INTERNET4, US
209 1654 4889 267 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 1169 91 952 AKAMAI-ASN1, NL
3257 1050 2083 814 GTT-BACKBONE GTT, US
34984 926 116 597 TELLCOM-AS, TR
3215 887 4818 291 France Telecom - Orange, FR
8452 838 1841 16 TE-AS TE-AS, EG
25019 805 1301 130 SAUDINETSTC-AS, SA
212238 657 46 581 CDNEXT, GB
8376 570 52 24 Jordan Data Communications, JO
51167 564 113 248 CONTABO, DE
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 7404 1992 896 UNINET, MX
11830 1984 369 64 Instituto Costarricense de Electricidad y
10620 1691 242 1219 Telmex Colombia S.A., CO
3816 1348 787 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1196 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 727 124 69 Alestra, S. de R.L. de C.V., MX
27651 650 92 46 ENTEL CHILE S.A., CL
28006 643 76 296 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 1432 572 23 RAYA-AS, EG
29571 1157 101 66 ORANGE-COTE-IVOIRE, CI
24863 1047 388 19 LINKdotNET-AS, EG
37069 953 1112 11 MOBINIL, EG
36914 582 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
36935 549 518 29 Vodafone-, EG
36903 456 204 330 MT-MPLS, MA
36992 395 954 202 ETISALAT-MISR, EG
2018 374 318 69 TENET-1, ZA
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 13688 40976 5290 AMAZON-02, US
9808 11850 8761 115 CHINAMOBILE-CN China Mobile Communication
8151 7404 1992 896 UNINET, MX
22773 3336 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3223 54766 2474 DNIC-AS-00749, US
4155 2845 216 1733 USDA-1, US
56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati
36352 2554 209 1144 AS-COLOCROSSING, US
367 2487 3043 1169 DNIC-ASBLK-00306-00371, US
11830 1984 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 11850 11735 CHINAMOBILE-CN China Mobile Communications Grou
8151 7404 6508 UNINET, MX
22773 3336 3173 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2755 2566 CMNET-JIANGSU-AP China Mobile communications co
11830 1984 1920 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1902 1687 ATLANTICBB-JOHNSTOWN, US
56047 1641 1591 CMNET-HUNAN-AP China Mobile communications corp
56041 1642 1564 CMNET-ZHEJIANG-AP China Mobile communications c
6167 1934 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 /12:161
/13:216 /14:595 /15:1118 /16:7811 /17:3516 /18:4247
/19:7817 /20:13340 /21:15951 /22:28930 /23:29449 /24:167817
/25:65 /26:81 /27:40 /28:18 /29:14 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3983 7404 UNINET, MX
22773 2492 3336 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2358 13688 AMAZON-02, US
11830 1688 1984 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
19901 1025 1350 BRSPD-PUBLIC, US
36352 1016 2554 AS-COLOCROSSING, US
10620 996 1691 Telmex Colombia S.A., CO
209 962 1654 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 2:440 3:854 4:5 5:811 6:145
7:5 8:658 11:171 12:968 13:406 14:137
15:308 16:247 17:3 18:890 20:189 21:4
22:188 23:2678 24:685 27:37 29:19 31:522
32:18 33:1 34:10 35:175 36:2616 37:748
38:2660 39:585 40:84 41:1086 42:21 43:225
44:33 45:4278 46:1018 47:110 49:26 50:481
51:387 52:1379 54:317 55:1111 56:11 57:22
58:18 59:34 60:29 61:61 62:551 63:784
64:1950 65:1136 66:1611 67:1090 68:371 69:1263
70:458 71:190 72:712 74:967 75:319 76:240
77:452 78:367 79:240 80:308 81:398 82:739
83:304 84:341 85:500 86:243 87:236 88:307
89:697 90:114 91:997 92:698 93:486 94:1027
95:754 96:275 97:53 98:498 99:192 100:40
101:61 102:393 103:1297 104:1699 105:176 106:40
107:1541 108:520 109:457 110:46 111:2005 112:688
113:38 114:63 115:23 116:56 117:1139 118:78
119:82 120:1457 121:51 122:70 123:130 124:64
125:25 126:1 128:524 129:399 130:683 131:1022
132:560 133:212 134:496 135:127 136:681 137:574
138:1030 139:444 140:768 141:371 142:1050 143:816
144:436 145:122 146:683 147:507 148:1008 149:737
150:204 151:806 152:608 153:131 154:1182 155:902
156:948 157:408 158:574 159:766 160:860 161:683
162:1066 163:444 164:732 165:582 166:812 167:711
168:1529 169:164 170:1768 171:105 172:1347 173:842
174:359 175:83 176:838 177:1079 178:608 179:879
180:45 181:2282 182:47 183:1091 184:460 185:3481
186:2869 187:1647 188:838 189:1994 190:5953 191:553
192:5299 193:1884 194:1233 195:959 196:720 197:1186
198:2755 199:5071 200:4667 201:3848 202:1079 203:730
204:2300 205:1835 206:1593 207:1632 208:1533 209:2022
210:363 211:467 212:1017 213:796 214:937 215:37
216:2602 217:437 218:558 219:18 220:32 221:461
222:24 223:1134
End of report
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