[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Apr 29 20:17:03 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Tue 29 Apr, 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: 263261
Prefixes after maximum aggregation (per Origin AS): 114839
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 136013
Number of IPv4 prefixes with a valid ROA: 118382
Number of IPv4 prefixes with an invalid ROA: 20
Number of IPv4 prefixes with no ROA: 144859
Total ASes present in the Internet Routing Table: 19892
Prefixes per ASN: 13.23
Origin-only ASes present in the Internet Routing Table: 17157
Origin ASes announcing only one prefix: 7795
Transit ASes present in the Internet Routing Table: 2735
Transit-only ASes present in the Internet Routing Table: 721
Paths with bogon ASNs present in the IPv4 Routing Table: 6
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: 314
Number of instances of unregistered ASNs: 315
Number of 32-bit ASNs allocated by the RIRs: 46298
Number of 32-bit ASNs visible in the Routing Table: 7603
Prefixes from 32-bit ASNs in the Routing Table: 28215
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 139
Number of addresses announced to Internet: 1557227484
Equivalent to 92 /8s, 209 /16s and 103 /24s
Percentage of available address space announced: 42.1
Percentage of allocated address space announced: 42.1
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: 83920
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32044
Total APNIC prefixes after maximum aggregation: 7516
APNIC Deaggregation factor: 4.26
Prefixes being announced from the APNIC address blocks: 30516
Unique aggregates announced from the APNIC address blocks: 8091
APNIC Region origin ASes present in the Internet Routing Table: 1208
APNIC Prefixes per ASN: 25.26
APNIC Region origin ASes announcing only one prefix: 474
APNIC Region transit ASes present in the Internet Routing Table: 205
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 550
Number of APNIC addresses announced to Internet: 175125868
Equivalent to 10 /8s, 112 /16s and 53 /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: 125279
Total ARIN prefixes after maximum aggregation: 64554
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122359
Unique aggregates announced from the ARIN address blocks: 65843
ARIN Region origin ASes present in the Internet Routing Table: 9308
ARIN Prefixes per ASN: 13.15
ARIN Region origin ASes announcing only one prefix: 3891
ARIN Region transit ASes present in the Internet Routing Table: 867
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2172
Number of ARIN addresses announced to Internet: 961445856
Equivalent to 57 /8s, 78 /16s and 127 /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: 50185
Total RIPE prefixes after maximum aggregation: 26457
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 51744
Unique aggregates announced from the RIPE address blocks: 36834
RIPE Region origin ASes present in the Internet Routing Table: 4606
RIPE Prefixes per ASN: 11.23
RIPE Region origin ASes announcing only one prefix: 1954
RIPE Region transit ASes present in the Internet Routing Table: 700
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1892
Number of RIPE addresses announced to Internet: 281903952
Equivalent to 16 /8s, 205 /16s and 131 /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: 45124
Total LACNIC prefixes after maximum aggregation: 13720
LACNIC Deaggregation factor: 3.29
Prefixes being announced from the LACNIC address blocks: 44256
Unique aggregates announced from the LACNIC address blocks: 20476
LACNIC Region origin ASes present in the Internet Routing Table: 3664
LACNIC Prefixes per ASN: 12.08
LACNIC Region origin ASes announcing only one prefix: 1370
LACNIC Region transit ASes present in the Internet Routing Table: 755
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 23
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2847
Number of LACNIC addresses announced to Internet: 96986944
Equivalent to 5 /8s, 199 /16s and 231 /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: 10315
Total AfriNIC prefixes after maximum aggregation: 2381
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 14247
Unique aggregates announced from the AfriNIC address blocks: 4648
AfriNIC Region origin ASes present in the Internet Routing Table: 262
AfriNIC Prefixes per ASN: 54.38
AfriNIC Region origin ASes announcing only one prefix: 106
AfriNIC Region transit ASes present in the Internet Routing Table: 71
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 142
Number of AfriNIC addresses announced to Internet: 41712128
Equivalent to 2 /8s, 124 /16s and 122 /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 10270 8754 92 CHINAMOBILE-CN China Mobile Communication
56046 1622 811 186 CMNET-JIANGSU-AP China Mobile communicati
56041 1569 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication
17561 858 54 350 LCS-AS-AP LARUS Limited, HK
24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 771 500 72 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 494 796 137 ALIBABA-CN-NET Alibaba US Technology Co.,
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 13227 39701 4091 AMAZON-02, US
22773 3382 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54879 2505 DNIC-AS-00749, US
4155 2682 204 1642 USDA-1, US
36352 2477 205 1101 AS-COLOCROSSING, US
367 2450 2890 1191 DNIC-ASBLK-00306-00371, US
7018 2110 22892 1557 ATT-INTERNET4, US
11776 1894 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1846 3687 467 CELLCO-PART, US
209 1665 4890 275 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 3251 197 64 ALJAWWALSTC-AS, SA
20940 1243 97 1015 AKAMAI-ASN1, NL
3257 926 2075 745 GTT-BACKBONE GTT, US
3215 889 4810 291 France Telecom - Orange, FR
25019 787 1301 129 SAUDINETSTC-AS, SA
34984 674 75 397 TELLCOM-AS, TR
8452 658 1842 17 TE-AS TE-AS, EG
203214 597 46 359 HULUMTELE, IQ
8376 576 53 23 Jordan Data Communications, JO
51167 568 113 251 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 2025 1016 UNINET, MX
11830 1993 369 64 Instituto Costarricense de Electricidad y
10620 1929 286 1300 Telmex Colombia S.A., CO
3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1192 371 22 Telefonica del Peru S.A.A., PE
26615 997 2503 52 TIM SA, BR
18881 882 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 645 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 547 2884 69 TELEFONICA BRASIL S.A, BR
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
24863 1491 389 16 LINKdotNET-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
29571 972 100 75 ORANGE-COTE-IVOIRE, CI
24835 879 552 38 RAYA-AS, EG
36935 699 135 175 Vodafone-, EG
36992 603 1228 124 ETISALAT-MISR, EG
36914 538 82 3 KENET-AS, KE
37069 465 1046 15 MOBINIL, EG
36903 458 216 328 MT-MPLS, MA
2018 372 318 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 13227 39701 4091 AMAZON-02, US
9808 10270 8754 92 CHINAMOBILE-CN China Mobile Communication
8151 7404 2025 1016 UNINET, MX
22773 3382 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54879 2505 DNIC-AS-00749, US
39891 3251 197 64 ALJAWWALSTC-AS, SA
4155 2682 204 1642 USDA-1, US
36352 2477 205 1101 AS-COLOCROSSING, US
367 2450 2890 1191 DNIC-ASBLK-00306-00371, US
7018 2110 22892 1557 ATT-INTERNET4, US
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 10270 10178 CHINAMOBILE-CN China Mobile Communications Grou
8151 7404 6388 UNINET, MX
22773 3382 3207 ASN-CXA-ALL-CCI-22773-RDC, US
39891 3251 3187 ALJAWWALSTC-AS, SA
11830 1993 1929 Instituto Costarricense de Electricidad y Telec
11776 1894 1678 ATLANTICBB-JOHNSTOWN, US
56041 1569 1491 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1491 1475 LINKdotNET-AS, EG
56046 1622 1436 CMNET-JIANGSU-AP China Mobile communications co
56047 1486 1433 CMNET-HUNAN-AP China Mobile communications corp
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
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
396831 UNALLOCATED 12.23.198.0/24 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
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.158.216.0/24 Origin: 204535 RESERVED, ZZ
23.158.216.0/24 Transit: 22427 GNET-AS, US
23.166.120.0/24 Origin: 59993 UILLLC-20230328, US
23.166.120.0/24 Transit: 30456 COSMIC-GLOBAL, 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 /8:13 /9:10 /10:29 /11:41 /12:153
/13:214 /14:579 /15:1095 /16:7631 /17:3441 /18:4203
/19:7700 /20:12411 /21:15336 /22:27766 /23:27783 /24:154643
/25:60 /26:76 /27:35 /28:12 /29:16 /30:10
/31:0 /32:4
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3911 7404 UNINET, MX
22773 2526 3382 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2368 3251 ALJAWWALSTC-AS, SA
16509 2352 13227 AMAZON-02, US
11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR
10620 1088 1929 Telmex Colombia S.A., CO
36352 1000 2477 AS-COLOCROSSING, US
209 964 1665 CENTURYLINK-US-LEGACY-QWEST, US
19901 948 1216 BRSPD-PUBLIC, US
11776 883 1894 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:66 2:466 3:622 4:5 5:1094 6:151
7:5 8:633 11:171 12:987 13:291 14:110
15:301 16:244 17:5 18:889 20:175 21:4
22:188 23:2626 24:648 27:21 29:19 31:459
32:9 34:10 35:135 36:1317 37:1059 38:1923
39:551 40:62 41:932 42:213 43:189 44:35
45:3710 46:958 47:87 49:19 50:355 51:385
52:1383 54:294 55:1024 56:11 57:16 58:18
59:43 60:16 61:72 62:551 63:760 64:1926
65:1097 66:1554 67:953 68:401 69:1114 70:417
71:206 72:759 74:959 75:426 76:248 77:476
78:584 79:288 80:295 81:354 82:743 83:242
84:342 85:460 86:231 87:242 88:276 89:840
90:103 91:945 92:586 93:841 94:938 95:812
96:294 97:63 98:469 99:161 100:35 101:20
102:369 103:1213 104:1428 105:132 106:16 107:1481
108:548 109:391 110:36 111:1916 112:449 113:35
114:43 115:13 116:58 117:1036 118:63 119:130
120:1174 121:46 122:65 123:71 124:57 125:25
128:473 129:285 130:698 131:886 132:557 133:212
134:488 135:110 136:581 137:509 138:873 139:441
140:705 141:446 142:1031 143:648 144:429 145:112
146:670 147:517 148:864 149:779 150:380 151:637
152:474 153:131 154:1801 155:803 156:1388 157:379
158:534 159:688 160:834 161:699 162:966 163:353
164:714 165:801 166:769 167:625 168:1149 169:149
170:1621 171:123 172:1389 173:852 174:259 175:53
176:738 177:891 178:510 179:697 180:47 181:1737
182:27 183:866 184:480 185:3340 186:2024 187:1392
188:784 189:1723 190:4210 191:417 192:5121 193:1816
194:1217 195:917 196:804 197:1544 198:2672 199:4860
200:3562 201:3264 202:995 203:729 204:2151 205:1913
206:1537 207:1502 208:1403 209:1925 210:308 211:430
212:938 213:857 214:973 215:42 216:2520 217:403
218:515 219:19 220:26 221:305 222:32 223:763
End of report
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