[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Jul 22 20:16:38 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Tue 22 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: 278643
Prefixes after maximum aggregation (per Origin AS): 120393
Deaggregation factor: 2.31
Unique aggregates announced (without unneeded subnets): 142996
Number of IPv4 prefixes with a valid ROA: 130416
Number of IPv4 prefixes with an invalid ROA: 208
Number of IPv4 prefixes with no ROA: 148019
Total ASes present in the Internet Routing Table: 20877
Prefixes per ASN: 13.35
Origin-only ASes present in the Internet Routing Table: 17988
Origin ASes announcing only one prefix: 8067
Transit ASes present in the Internet Routing Table: 2889
Transit-only ASes present in the Internet Routing Table: 713
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: 348
Number of instances of unregistered ASNs: 380
Number of 32-bit ASNs allocated by the RIRs: 46908
Number of 32-bit ASNs visible in the Routing Table: 8353
Prefixes from 32-bit ASNs in the Routing Table: 33137
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: 100
Number of addresses announced to Internet: 1642740997
Equivalent to 97 /8s, 234 /16s and 61 /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: 88465
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34852
Total APNIC prefixes after maximum aggregation: 7534
APNIC Deaggregation factor: 4.63
Prefixes being announced from the APNIC address blocks: 33751
Unique aggregates announced from the APNIC address blocks: 7906
APNIC Region origin ASes present in the Internet Routing Table: 1236
APNIC Prefixes per ASN: 27.31
APNIC Region origin ASes announcing only one prefix: 492
APNIC Region transit ASes present in the Internet Routing Table: 199
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: 578
Number of APNIC addresses announced to Internet: 173301356
Equivalent to 10 /8s, 84 /16s and 94 /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: 126416
Total ARIN prefixes after maximum aggregation: 66518
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 124973
Unique aggregates announced from the ARIN address blocks: 67969
ARIN Region origin ASes present in the Internet Routing Table: 9342
ARIN Prefixes per ASN: 13.38
ARIN Region origin ASes announcing only one prefix: 3892
ARIN Region transit ASes present in the Internet Routing Table: 878
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: 2199
Number of ARIN addresses announced to Internet: 1028314633
Equivalent to 61 /8s, 74 /16s and 214 /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: 49650
Total RIPE prefixes after maximum aggregation: 27129
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 51041
Unique aggregates announced from the RIPE address blocks: 37900
RIPE Region origin ASes present in the Internet Routing Table: 4641
RIPE Prefixes per ASN: 11.00
RIPE Region origin ASes announcing only one prefix: 1955
RIPE Region transit ASes present in the Internet Routing Table: 698
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: 1915
Number of RIPE addresses announced to Internet: 286286160
Equivalent to 17 /8s, 16 /16s and 97 /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: 56525
Total LACNIC prefixes after maximum aggregation: 16641
LACNIC Deaggregation factor: 3.40
Prefixes being announced from the LACNIC address blocks: 54826
Unique aggregates announced from the LACNIC address blocks: 24741
LACNIC Region origin ASes present in the Internet Routing Table: 4528
LACNIC Prefixes per ASN: 12.11
LACNIC Region origin ASes announcing only one prefix: 1619
LACNIC Region transit ASes present in the Internet Routing Table: 907
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 35
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3512
Number of LACNIC addresses announced to Internet: 108845120
Equivalent to 6 /8s, 124 /16s and 216 /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: 10852
Total AfriNIC prefixes after maximum aggregation: 2308
AfriNIC Deaggregation factor: 4.70
Prefixes being announced from the AfriNIC address blocks: 13952
Unique aggregates announced from the AfriNIC address blocks: 4382
AfriNIC Region origin ASes present in the Internet Routing Table: 284
AfriNIC Prefixes per ASN: 49.13
AfriNIC Region origin ASes announcing only one prefix: 109
AfriNIC Region transit ASes present in the Internet Routing Table: 72
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: 149
Number of AfriNIC addresses announced to Internet: 45877248
Equivalent to 2 /8s, 188 /16s and 8 /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 11840 8761 115 CHINAMOBILE-CN China Mobile Communication
56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati
56047 1631 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 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 13677 40975 5282 AMAZON-02, US
22773 3337 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3223 54766 2474 DNIC-AS-00749, US
4155 2873 218 1732 USDA-1, US
36352 2553 209 1139 AS-COLOCROSSING, US
367 2499 3072 1176 DNIC-ASBLK-00306-00371, US
6167 1937 4026 519 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
7018 1666 22849 1254 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 1166 91 951 AKAMAI-ASN1, NL
3257 1046 2083 810 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 655 46 579 CDNEXT, GB
8376 569 52 23 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 7451 2003 894 UNINET, MX
11830 1987 369 64 Instituto Costarricense de Electricidad y
10620 1690 242 1218 Telmex Colombia S.A., CO
3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1196 371 22 Telefonica del Peru S.A.A., PE
26615 1016 2487 55 TIM SA, BR
18881 886 1127 31 TELEFONICA BRASIL S.A, BR
11172 724 124 68 Alestra, S. de R.L. de C.V., MX
27651 650 92 46 ENTEL CHILE S.A., CL
28006 639 76 295 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 1355 544 23 RAYA-AS, EG
29571 1157 101 66 ORANGE-COTE-IVOIRE, CI
24863 1048 388 19 LINKdotNET-AS, EG
37069 953 1112 11 MOBINIL, EG
36914 579 82 3 KENET-AS, KE
20011 545 152 218 INTERNET-SOLUTIONS, ZA
36903 456 204 330 MT-MPLS, MA
36992 449 962 238 ETISALAT-MISR, EG
2018 375 318 69 TENET-1, ZA
36935 361 515 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 13677 40975 5282 AMAZON-02, US
9808 11840 8761 115 CHINAMOBILE-CN China Mobile Communication
8151 7451 2003 894 UNINET, MX
22773 3337 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3223 54766 2474 DNIC-AS-00749, US
4155 2873 218 1732 USDA-1, US
56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati
36352 2553 209 1139 AS-COLOCROSSING, US
367 2499 3072 1176 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 11840 11725 CHINAMOBILE-CN China Mobile Communications Grou
8151 7451 6557 UNINET, MX
22773 3337 3173 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 1631 1581 CMNET-HUNAN-AP China Mobile communications corp
56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c
6167 1937 1418 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 /14:592 /15:1119 /16:7747 /17:3482 /18:4220
/19:7768 /20:13197 /21:15848 /22:28149 /23:29292 /24:166513
/25:65 /26:81 /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 4012 7451 UNINET, MX
22773 2492 3337 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2357 13677 AMAZON-02, US
11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
19901 1031 1356 BRSPD-PUBLIC, US
36352 1016 2553 AS-COLOCROSSING, US
10620 995 1690 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 2:442 3:850 4:5 5:704 6:150
7:5 8:653 11:171 12:967 13:406 14:134
15:307 16:247 17:3 18:890 20:162 21:4
22:188 23:2660 24:684 27:27 29:19 31:523
32:18 33:1 34:10 35:175 36:2543 37:709
38:2636 39:571 40:84 41:1083 42:21 43:223
44:33 45:4284 46:995 47:110 49:26 50:480
51:387 52:1378 54:317 55:1112 56:11 57:23
58:18 59:35 60:29 61:61 62:524 63:782
64:1953 65:1135 66:1613 67:1096 68:372 69:1261
70:459 71:189 72:712 74:961 75:319 76:242
77:432 78:367 79:238 80:284 81:355 82:723
83:234 84:354 85:476 86:243 87:218 88:303
89:701 90:107 91:973 92:668 93:484 94:1015
95:744 96:273 97:53 98:498 99:192 100:40
101:62 102:387 103:1286 104:1700 105:176 106:40
107:1530 108:519 109:442 110:46 111:1995 112:660
113:38 114:65 115:25 116:55 117:1112 118:60
119:83 120:1448 121:51 122:70 123:129 124:65
125:25 126:1 128:525 129:395 130:679 131:1023
132:560 133:212 134:470 135:127 136:620 137:528
138:1031 139:442 140:769 141:368 142:1026 143:809
144:440 145:120 146:684 147:517 148:1003 149:730
150:204 151:803 152:608 153:130 154:1258 155:915
156:963 157:407 158:575 159:760 160:860 161:686
162:1055 163:445 164:733 165:574 166:812 167:707
168:1544 169:163 170:1760 171:105 172:1340 173:838
174:356 175:86 176:802 177:1036 178:482 179:878
180:38 181:2277 182:46 183:1076 184:459 185:3464
186:2861 187:1690 188:811 189:1993 190:6030 191:548
192:5292 193:1870 194:1225 195:949 196:713 197:1145
198:2757 199:5063 200:4690 201:3819 202:1004 203:724
204:2284 205:1846 206:1586 207:1630 208:1530 209:2022
210:362 211:465 212:1020 213:794 214:938 215:37
216:2595 217:438 218:552 219:18 220:36 221:456
222:24 223:1100
End of report
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