[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Mon Jul 21 20:16:46 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Mon 21 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: 280390
Prefixes after maximum aggregation (per Origin AS): 121077
Deaggregation factor: 2.32
Unique aggregates announced (without unneeded subnets): 143723
Number of IPv4 prefixes with a valid ROA: 130862
Number of IPv4 prefixes with an invalid ROA: 208
Number of IPv4 prefixes with no ROA: 149320
Total ASes present in the Internet Routing Table: 21027
Prefixes per ASN: 13.33
Origin-only ASes present in the Internet Routing Table: 18092
Origin ASes announcing only one prefix: 8120
Transit ASes present in the Internet Routing Table: 2935
Transit-only ASes present in the Internet Routing Table: 729
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: 349
Number of instances of unregistered ASNs: 381
Number of 32-bit ASNs allocated by the RIRs: 46911
Number of 32-bit ASNs visible in the Routing Table: 8444
Prefixes from 32-bit ASNs in the Routing Table: 33524
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: 1643989253
Equivalent to 97 /8s, 253 /16s and 73 /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: 89574
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34678
Total APNIC prefixes after maximum aggregation: 7584
APNIC Deaggregation factor: 4.57
Prefixes being announced from the APNIC address blocks: 33567
Unique aggregates announced from the APNIC address blocks: 7959
APNIC Region origin ASes present in the Internet Routing Table: 1241
APNIC Prefixes per ASN: 27.05
APNIC Region origin ASes announcing only one prefix: 495
APNIC Region transit ASes present in the Internet Routing Table: 201
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: 581
Number of APNIC addresses announced to Internet: 173192812
Equivalent to 10 /8s, 82 /16s and 182 /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: 126558
Total ARIN prefixes after maximum aggregation: 66596
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 125128
Unique aggregates announced from the ARIN address blocks: 68029
ARIN Region origin ASes present in the Internet Routing Table: 9363
ARIN Prefixes per ASN: 13.36
ARIN Region origin ASes announcing only one prefix: 3904
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: 2206
Number of ARIN addresses announced to Internet: 1028422153
Equivalent to 61 /8s, 76 /16s and 122 /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: 50961
Total RIPE prefixes after maximum aggregation: 27517
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 52348
Unique aggregates announced from the RIPE address blocks: 38276
RIPE Region origin ASes present in the Internet Routing Table: 4668
RIPE Prefixes per ASN: 11.21
RIPE Region origin ASes announcing only one prefix: 1964
RIPE Region transit ASes present in the Internet Routing Table: 700
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: 1916
Number of RIPE addresses announced to Internet: 287666512
Equivalent to 17 /8s, 37 /16s and 113 /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: 56886
Total LACNIC prefixes after maximum aggregation: 16784
LACNIC Deaggregation factor: 3.39
Prefixes being announced from the LACNIC address blocks: 55194
Unique aggregates announced from the LACNIC address blocks: 24918
LACNIC Region origin ASes present in the Internet Routing Table: 4599
LACNIC Prefixes per ASN: 12.00
LACNIC Region origin ASes announcing only one prefix: 1644
LACNIC Region transit ASes present in the Internet Routing Table: 929
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: 3583
Number of LACNIC addresses announced to Internet: 109070656
Equivalent to 6 /8s, 128 /16s and 73 /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: 10958
Total AfriNIC prefixes after maximum aggregation: 2332
AfriNIC Deaggregation factor: 4.70
Prefixes being announced from the AfriNIC address blocks: 14053
Unique aggregates announced from the AfriNIC address blocks: 4443
AfriNIC Region origin ASes present in the Internet Routing Table: 295
AfriNIC Prefixes per ASN: 47.64
AfriNIC Region origin ASes announcing only one prefix: 113
AfriNIC Region transit ASes present in the Internet Routing Table: 77
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 158
Number of AfriNIC addresses announced to Internet: 45520640
Equivalent to 2 /8s, 182 /16s and 151 /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 13684 40974 5288 AMAZON-02, US
22773 3337 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3223 54766 2474 DNIC-AS-00749, US
4155 2868 218 1735 USDA-1, US
36352 2544 209 1135 AS-COLOCROSSING, US
367 2505 3071 1174 DNIC-ASBLK-00306-00371, US
6167 1930 4018 516 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
7018 1663 22849 1251 ATT-INTERNET4, US
209 1655 4889 268 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 1048 2083 810 GTT-BACKBONE GTT, US
34984 926 116 597 TELLCOM-AS, TR
3215 887 4818 291 France Telecom - Orange, FR
8452 814 1841 16 TE-AS TE-AS, EG
25019 805 1301 130 SAUDINETSTC-AS, SA
212238 655 46 579 CDNEXT, GB
8376 572 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 7483 2012 898 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 1017 2487 55 TIM SA, BR
18881 885 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 1354 544 23 RAYA-AS, EG
29571 1157 101 66 ORANGE-COTE-IVOIRE, CI
24863 1056 388 20 LINKdotNET-AS, EG
37069 1024 1112 11 MOBINIL, EG
36914 580 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
36903 456 204 330 MT-MPLS, MA
36992 441 959 236 ETISALAT-MISR, EG
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 13684 40974 5288 AMAZON-02, US
9808 11632 8761 115 CHINAMOBILE-CN China Mobile Communication
8151 7483 2012 898 UNINET, MX
22773 3337 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3223 54766 2474 DNIC-AS-00749, US
4155 2868 218 1735 USDA-1, US
56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati
36352 2544 209 1135 AS-COLOCROSSING, US
367 2505 3071 1174 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 7483 6585 UNINET, MX
22773 3337 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 /16:7744 /17:3495 /18:4233
/19:7815 /20:13361 /21:15937 /22:28800 /23:29478 /24:167103
/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 4023 7483 UNINET, MX
22773 2493 3337 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2355 13684 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 1015 2544 AS-COLOCROSSING, US
10620 995 1690 Telmex Colombia S.A., CO
209 962 1655 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)
----------------------------------------------
1:35 2:441 3:850 4:5 5:809 6:150
7:5 8:653 11:171 12:965 13:403 14:134
15:308 16:247 17:3 18:890 20:189 21:4
22:188 23:2668 24:687 27:27 29:19 31:523
32:18 33:1 34:10 35:175 36:2414 37:708
38:2624 39:556 40:84 41:1063 42:21 43:224
44:32 45:4379 46:1011 47:110 49:26 50:413
51:387 52:1379 54:318 55:1107 56:11 57:24
58:18 59:35 60:29 61:63 62:522 63:785
64:1959 65:1135 66:1610 67:1099 68:371 69:1264
70:459 71:190 72:715 74:969 75:320 76:237
77:455 78:365 79:241 80:308 81:368 82:730
83:236 84:354 85:476 86:246 87:221 88:303
89:710 90:107 91:987 92:692 93:485 94:1030
95:747 96:273 97:52 98:500 99:192 100:40
101:66 102:401 103:1297 104:1698 105:176 106:40
107:1531 108:518 109:453 110:46 111:1977 112:639
113:38 114:65 115:25 116:56 117:1100 118:69
119:82 120:1440 121:51 122:70 123:131 124:65
125:25 126:1 128:528 129:396 130:678 131:1019
132:559 133:212 134:474 135:100 136:661 137:533
138:1040 139:440 140:774 141:366 142:1027 143:806
144:441 145:117 146:681 147:516 148:1004 149:724
150:212 151:802 152:623 153:131 154:1247 155:910
156:1014 157:405 158:574 159:763 160:860 161:684
162:1059 163:444 164:733 165:582 166:815 167:705
168:1586 169:165 170:1759 171:111 172:1341 173:841
174:360 175:79 176:812 177:1064 178:611 179:877
180:41 181:2280 182:47 183:1059 184:457 185:3478
186:2868 187:1699 188:830 189:1994 190:6015 191:546
192:5295 193:1874 194:1248 195:946 196:717 197:1186
198:2765 199:5062 200:4695 201:3855 202:1002 203:725
204:2287 205:1862 206:1581 207:1620 208:1530 209:2022
210:362 211:465 212:1019 213:797 214:941 215:35
216:2576 217:447 218:550 219:18 220:36 221:455
222:24 223:1100
End of report
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