[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 17 20:16:40 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Thu 17 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: 277559
Prefixes after maximum aggregation (per Origin AS): 120999
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 143926
Number of IPv4 prefixes with a valid ROA: 130593
Number of IPv4 prefixes with an invalid ROA: 210
Number of IPv4 prefixes with no ROA: 146756
Total ASes present in the Internet Routing Table: 21099
Prefixes per ASN: 13.16
Origin-only ASes present in the Internet Routing Table: 18152
Origin ASes announcing only one prefix: 8131
Transit ASes present in the Internet Routing Table: 2947
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 (264930) 33
Prefixes from unregistered ASNs in the Routing Table: 355
Number of instances of unregistered ASNs: 387
Number of 32-bit ASNs allocated by the RIRs: 46856
Number of 32-bit ASNs visible in the Routing Table: 8537
Prefixes from 32-bit ASNs in the Routing Table: 33646
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: 102
Number of addresses announced to Internet: 1646715397
Equivalent to 98 /8s, 38 /16s and 226 /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: 88268
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34624
Total APNIC prefixes after maximum aggregation: 7573
APNIC Deaggregation factor: 4.57
Prefixes being announced from the APNIC address blocks: 33530
Unique aggregates announced from the APNIC address blocks: 7953
APNIC Region origin ASes present in the Internet Routing Table: 1249
APNIC Prefixes per ASN: 26.85
APNIC Region origin ASes announcing only one prefix: 499
APNIC Region transit ASes present in the Internet Routing Table: 203
Average APNIC Region AS path length visible: 7.4
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 591
Number of APNIC addresses announced to Internet: 173160812
Equivalent to 10 /8s, 82 /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: 126193
Total ARIN prefixes after maximum aggregation: 66413
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 124837
Unique aggregates announced from the ARIN address blocks: 67998
ARIN Region origin ASes present in the Internet Routing Table: 9342
ARIN Prefixes per ASN: 13.36
ARIN Region origin ASes announcing only one prefix: 3883
ARIN Region transit ASes present in the Internet Routing Table: 884
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: 1028172809
Equivalent to 61 /8s, 72 /16s and 172 /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: 49831
Total RIPE prefixes after maximum aggregation: 27436
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 51334
Unique aggregates announced from the RIPE address blocks: 38265
RIPE Region origin ASes present in the Internet Routing Table: 4648
RIPE Prefixes per ASN: 11.04
RIPE Region origin ASes announcing only one prefix: 1957
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: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1911
Number of RIPE addresses announced to Internet: 286732112
Equivalent to 17 /8s, 23 /16s and 47 /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: 56892
Total LACNIC prefixes after maximum aggregation: 16991
LACNIC Deaggregation factor: 3.35
Prefixes being announced from the LACNIC address blocks: 55162
Unique aggregates announced from the LACNIC address blocks: 25163
LACNIC Region origin ASes present in the Internet Routing Table: 4708
LACNIC Prefixes per ASN: 11.72
LACNIC Region origin ASes announcing only one prefix: 1684
LACNIC Region transit ASes present in the Internet Routing Table: 940
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 38
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3677
Number of LACNIC addresses announced to Internet: 108977216
Equivalent to 6 /8s, 126 /16s and 220 /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: 9664
Total AfriNIC prefixes after maximum aggregation: 2323
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 12594
Unique aggregates announced from the AfriNIC address blocks: 4447
AfriNIC Region origin ASes present in the Internet Routing Table: 295
AfriNIC Prefixes per ASN: 42.69
AfriNIC Region origin ASes announcing only one prefix: 108
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: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 157
Number of AfriNIC addresses announced to Internet: 49557248
Equivalent to 2 /8s, 244 /16s and 47 /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
56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1595 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 13678 40963 5270 AMAZON-02, US
22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3223 54766 2474 DNIC-AS-00749, US
4155 2865 217 1732 USDA-1, US
36352 2554 210 1142 AS-COLOCROSSING, US
367 2501 3072 1176 DNIC-ASBLK-00306-00371, US
6167 1930 4018 516 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
7018 1719 22853 1275 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 1176 92 955 AKAMAI-ASN1, NL
3257 1047 2083 810 GTT-BACKBONE GTT, US
34984 926 116 597 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 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 6983 1935 929 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 1195 371 21 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
29571 1154 101 66 ORANGE-COTE-IVOIRE, CI
24835 937 544 23 RAYA-AS, EG
37069 702 1112 11 MOBINIL, EG
36914 569 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
24863 525 389 22 LINKdotNET-AS, EG
36992 479 1024 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 13678 40963 5270 AMAZON-02, US
9808 11632 8761 115 CHINAMOBILE-CN China Mobile Communication
8151 6983 1935 929 UNINET, MX
22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3223 54766 2474 DNIC-AS-00749, US
4155 2865 217 1732 USDA-1, US
56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati
36352 2554 210 1142 AS-COLOCROSSING, US
367 2501 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 11632 11517 CHINAMOBILE-CN China Mobile Communications Grou
8151 6983 6054 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 1595 1545 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 /12:162
/13:218 /14:590 /15:1108 /16:7718 /17:3482 /18:4197
/19:7686 /20:12932 /21:15899 /22:27446 /23:29382 /24:166397
/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 3625 6983 UNINET, MX
22773 2493 3338 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2340 13678 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 2554 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 3:849 4:5 5:713 6:150
7:5 8:653 11:171 12:965 13:401 14:135
15:308 16:247 17:3 18:890 20:189 21:4
22:188 23:2671 24:688 27:44 29:19 31:520
32:18 33:1 34:10 35:175 36:2385 37:714
38:2627 39:555 40:84 41:1043 42:21 43:220
44:32 45:4451 46:997 47:110 49:26 50:418
51:390 52:1384 54:318 55:1108 56:11 57:23
58:18 59:35 60:31 61:62 62:543 63:786
64:1937 65:1133 66:1607 67:1096 68:370 69:1278
70:459 71:188 72:710 74:969 75:319 76:249
77:484 78:370 79:238 80:289 81:356 82:730
83:225 84:361 85:479 86:245 87:217 88:302
89:718 90:107 91:934 92:662 93:486 94:987
95:744 96:276 97:53 98:503 99:193 100:40
101:64 102:395 103:1302 104:1708 105:178 106:40
107:1530 108:440 109:438 110:44 111:1973 112:639
113:39 114:63 115:25 116:56 117:1099 118:69
119:82 120:1440 121:50 122:70 123:131 124:65
125:24 126:1 128:528 129:351 130:667 131:1012
132:558 133:212 134:476 135:127 136:675 137:532
138:1030 139:446 140:775 141:372 142:1023 143:808
144:439 145:118 146:684 147:520 148:1028 149:726
150:178 151:815 152:624 153:133 154:1203 155:907
156:1006 157:397 158:565 159:761 160:855 161:681
162:1070 163:442 164:727 165:580 166:816 167:704
168:1574 169:165 170:1785 171:110 172:1331 173:834
174:362 175:85 176:788 177:1080 178:484 179:880
180:41 181:2275 182:46 183:1059 184:458 185:3512
186:2869 187:1651 188:817 189:1900 190:6030 191:552
192:5291 193:1830 194:1254 195:960 196:715 197:1187
198:2752 199:5060 200:4728 201:3786 202:1001 203:725
204:2287 205:1850 206:1575 207:1618 208:1521 209:2023
210:362 211:465 212:996 213:790 214:936 215:35
216:2585 217:450 218:550 219:18 220:36 221:455
222:24 223:1099
End of report
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