[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sat Mar 29 20:17:03 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Sat 29 Mar, 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: 270071
Prefixes after maximum aggregation (per Origin AS): 117542
Deaggregation factor: 2.30
Unique aggregates announced (without unneeded subnets): 141047
Number of IPv4 prefixes with a valid ROA: 122777
Number of IPv4 prefixes with an invalid ROA: 16
Number of IPv4 prefixes with no ROA: 147278
Total ASes present in the Internet Routing Table: 20705
Prefixes per ASN: 13.04
Origin-only ASes present in the Internet Routing Table: 17803
Origin ASes announcing only one prefix: 7971
Transit ASes present in the Internet Routing Table: 2902
Transit-only ASes present in the Internet Routing Table: 777
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: 272
Number of instances of unregistered ASNs: 273
Number of 32-bit ASNs allocated by the RIRs: 46117
Number of 32-bit ASNs visible in the Routing Table: 8133
Prefixes from 32-bit ASNs in the Routing Table: 31338
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: 111
Number of addresses announced to Internet: 1560595805
Equivalent to 93 /8s, 4 /16s and 205 /24s
Percentage of available address space announced: 42.2
Percentage of allocated address space announced: 42.2
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: 86699
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32101
Total APNIC prefixes after maximum aggregation: 7662
APNIC Deaggregation factor: 4.19
Prefixes being announced from the APNIC address blocks: 30840
Unique aggregates announced from the APNIC address blocks: 8201
APNIC Region origin ASes present in the Internet Routing Table: 1241
APNIC Prefixes per ASN: 24.85
APNIC Region origin ASes announcing only one prefix: 506
APNIC Region transit ASes present in the Internet Routing Table: 222
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: 581
Number of APNIC addresses announced to Internet: 169125740
Equivalent to 10 /8s, 20 /16s and 167 /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: 126024
Total ARIN prefixes after maximum aggregation: 64819
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 123603
Unique aggregates announced from the ARIN address blocks: 66722
ARIN Region origin ASes present in the Internet Routing Table: 9376
ARIN Prefixes per ASN: 13.18
ARIN Region origin ASes announcing only one prefix: 3907
ARIN Region transit ASes present in the Internet Routing Table: 876
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: 2162
Number of ARIN addresses announced to Internet: 965032673
Equivalent to 57 /8s, 133 /16s and 58 /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: 49556
Total RIPE prefixes after maximum aggregation: 27067
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 51308
Unique aggregates announced from the RIPE address blocks: 37807
RIPE Region origin ASes present in the Internet Routing Table: 4659
RIPE Prefixes per ASN: 11.01
RIPE Region origin ASes announcing only one prefix: 1955
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: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1906
Number of RIPE addresses announced to Internet: 281382096
Equivalent to 16 /8s, 197 /16s and 140 /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: 51562
Total LACNIC prefixes after maximum aggregation: 15546
LACNIC Deaggregation factor: 3.32
Prefixes being announced from the LACNIC address blocks: 50177
Unique aggregates announced from the LACNIC address blocks: 24058
LACNIC Region origin ASes present in the Internet Routing Table: 4251
LACNIC Prefixes per ASN: 11.80
LACNIC Region origin ASes announcing only one prefix: 1491
LACNIC Region transit ASes present in the Internet Routing Table: 863
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: 3337
Number of LACNIC addresses announced to Internet: 101186624
Equivalent to 6 /8s, 7 /16s and 252 /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: 10556
Total AfriNIC prefixes after maximum aggregation: 2244
AfriNIC Deaggregation factor: 4.70
Prefixes being announced from the AfriNIC address blocks: 14032
Unique aggregates announced from the AfriNIC address blocks: 4150
AfriNIC Region origin ASes present in the Internet Routing Table: 279
AfriNIC Prefixes per ASN: 50.29
AfriNIC Region origin ASes announcing only one prefix: 112
AfriNIC Region transit ASes present in the Internet Routing Table: 79
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: 147
Number of AfriNIC addresses announced to Internet: 43819776
Equivalent to 2 /8s, 156 /16s and 163 /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 10125 8753 88 CHINAMOBILE-CN China Mobile Communication
56046 1576 803 179 CMNET-JIANGSU-AP China Mobile communicati
56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1482 192 53 CMNET-HUNAN-AP China Mobile communication
24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 777 501 74 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
24445 520 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
17561 518 33 208 LCS-AS-AP LARUS Limited, HK
45102 478 779 138 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 12948 39645 3979 AMAZON-02, US
22773 3374 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2559 189 1551 USDA-1, US
367 2430 2886 1169 DNIC-ASBLK-00306-00371, US
36352 2349 196 1061 AS-COLOCROSSING, US
7018 2218 22907 1581 ATT-INTERNET4, US
11776 1879 257 217 ATLANTICBB-JOHNSTOWN, US
6167 1819 3570 457 CELLCO-PART, US
209 1670 4890 277 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 1254 98 1012 AKAMAI-ASN1, NL
3215 927 4886 286 France Telecom - Orange, FR
3257 927 2075 749 GTT-BACKBONE GTT, US
25019 901 1299 129 SAUDINETSTC-AS, SA
34984 653 73 474 TELLCOM-AS, TR
8452 602 1842 17 TE-AS TE-AS, EG
8376 570 53 25 Jordan Data Communications, JO
51167 568 113 251 CONTABO, DE
212238 567 41 500 CDNEXT, GB
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 7468 2050 937 UNINET, MX
10620 2042 305 1336 Telmex Colombia S.A., CO
11830 1991 369 64 Instituto Costarricense de Electricidad y
3816 1332 783 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1193 371 22 Telefonica del Peru S.A.A., PE
26615 1014 2503 53 TIM SA, BR
18881 883 1127 31 TELEFONICA BRASIL S.A, BR
27651 656 95 43 ENTEL CHILE S.A., CL
28006 643 77 295 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 544 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 1443 389 18 LINKdotNET-AS, EG
29571 1209 101 70 ORANGE-COTE-IVOIRE, CI
20011 980 183 284 INTERNET-SOLUTIONS, ZA
24835 805 504 37 RAYA-AS, EG
36935 687 520 41 Vodafone-, EG
36992 604 1229 126 ETISALAT-MISR, EG
36914 553 82 3 KENET-AS, KE
37069 519 1047 18 MOBINIL, EG
36903 417 195 306 MT-MPLS, MA
2018 373 318 68 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 12948 39645 3979 AMAZON-02, US
9808 10125 8753 88 CHINAMOBILE-CN China Mobile Communication
8151 7468 2050 937 UNINET, MX
22773 3374 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2559 189 1551 USDA-1, US
367 2430 2886 1169 DNIC-ASBLK-00306-00371, US
36352 2349 196 1061 AS-COLOCROSSING, US
7018 2218 22907 1581 ATT-INTERNET4, US
10620 2042 305 1336 Telmex Colombia S.A., CO
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 10125 10037 CHINAMOBILE-CN China Mobile Communications Grou
8151 7468 6531 UNINET, MX
22773 3374 3199 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1991 1927 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1879 1662 ATLANTICBB-JOHNSTOWN, US
56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c
56047 1482 1429 CMNET-HUNAN-AP China Mobile communications corp
24863 1443 1425 LINKdotNET-AS, EG
56046 1576 1397 CMNET-JIANGSU-AP China Mobile communications co
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
53966 UNALLOCATED 8.39.98.0/24 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
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 PIGGYTARO-DATA, CA
23.158.216.0/24 Transit: 22427 GNET-AS, US
41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A
41.78.60.0/22 Transit: 2914 NTT-DATA-2914, 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 /11:42 /12:150
/13:218 /14:578 /15:1100 /16:7625 /17:3478 /18:4239
/19:7809 /20:12602 /21:15666 /22:28350 /23:28145 /24:159801
/25:61 /26:76 /27:35 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3839 7468 UNINET, MX
22773 2515 3374 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2332 12948 AMAZON-02, US
11830 1692 1991 Instituto Costarricense de Electricidad y Telecom., CR
10620 1143 2042 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
209 966 1670 CENTURYLINK-US-LEGACY-QWEST, US
36352 939 2349 AS-COLOCROSSING, US
19901 937 1183 BRSPD-PUBLIC, US
11776 881 1879 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:65 2:479 3:597 4:5 5:833 6:150
7:5 8:641 11:171 12:998 13:296 14:138
15:301 16:241 17:5 18:881 20:158 21:4
22:188 23:2511 24:959 27:24 29:19 31:529
32:18 34:10 35:131 36:1224 37:1074 38:2327
39:543 40:54 41:974 42:221 43:216 44:32
45:4123 46:945 47:84 49:54 50:355 51:381
52:1386 54:276 55:1089 56:11 57:18 58:45
59:40 60:16 61:67 62:539 63:777 64:1884
65:1088 66:1606 67:974 68:419 69:1206 70:439
71:213 72:860 74:980 75:436 76:248 77:474
78:320 79:275 80:302 81:348 82:712 83:238
84:360 85:523 86:238 87:255 88:288 89:837
90:106 91:986 92:686 93:454 94:969 95:685
96:281 97:64 98:474 99:162 100:35 101:25
102:394 103:1258 104:1481 105:135 106:62 107:1487
108:542 109:386 110:57 111:1919 112:462 113:40
114:67 115:16 116:55 117:1038 118:167 119:130
120:1163 121:44 122:105 123:146 124:57 125:20
128:491 129:309 130:665 131:951 132:557 133:213
134:556 135:117 136:563 137:508 138:1036 139:441
140:711 141:451 142:973 143:707 144:419 145:113
146:697 147:501 148:859 149:750 150:376 151:704
152:527 153:127 154:1548 155:804 156:1354 157:376
158:507 159:746 160:927 161:718 162:1006 163:351
164:725 165:843 166:735 167:653 168:1517 169:145
170:1664 171:122 172:1416 173:821 174:253 175:53
176:522 177:1121 178:530 179:787 180:50 181:1968
182:43 183:857 184:506 185:3435 186:2484 187:1505
188:803 189:1708 190:5243 191:499 192:5155 193:1837
194:1241 195:934 196:836 197:1551 198:2712 199:4898
200:4052 201:3385 202:989 203:711 204:2179 205:1977
206:1573 207:1512 208:1370 209:1985 210:309 211:426
212:1098 213:869 214:1006 215:42 216:2503 217:447
218:522 219:20 220:20 221:301 222:32 223:733
End of report
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