[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 22 20:17:05 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Sat 22 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: 270180
Prefixes after maximum aggregation (per Origin AS): 117573
Deaggregation factor: 2.30
Unique aggregates announced (without unneeded subnets): 141200
Number of IPv4 prefixes with a valid ROA: 122541
Number of IPv4 prefixes with an invalid ROA: 22
Number of IPv4 prefixes with no ROA: 147617
Total ASes present in the Internet Routing Table: 20760
Prefixes per ASN: 13.01
Origin-only ASes present in the Internet Routing Table: 17834
Origin ASes announcing only one prefix: 7931
Transit ASes present in the Internet Routing Table: 2926
Transit-only ASes present in the Internet Routing Table: 753
Paths with bogon ASNs present in the IPv4 Routing Table: 9
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: 286
Number of instances of unregistered ASNs: 287
Number of 32-bit ASNs allocated by the RIRs: 46119
Number of 32-bit ASNs visible in the Routing Table: 8199
Prefixes from 32-bit ASNs in the Routing Table: 31815
Number of bogon 32-bit ASNs visible in the Routing Table: 10
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 122
Number of addresses announced to Internet: 1559520861
Equivalent to 92 /8s, 244 /16s and 102 /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: 86979
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32127
Total APNIC prefixes after maximum aggregation: 7652
APNIC Deaggregation factor: 4.20
Prefixes being announced from the APNIC address blocks: 30838
Unique aggregates announced from the APNIC address blocks: 8214
APNIC Region origin ASes present in the Internet Routing Table: 1199
APNIC Prefixes per ASN: 25.72
APNIC Region origin ASes announcing only one prefix: 473
APNIC Region transit ASes present in the Internet Routing Table: 212
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 547
Number of APNIC addresses announced to Internet: 169326188
Equivalent to 10 /8s, 23 /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: 125671
Total ARIN prefixes after maximum aggregation: 64687
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 123369
Unique aggregates announced from the ARIN address blocks: 66559
ARIN Region origin ASes present in the Internet Routing Table: 9333
ARIN Prefixes per ASN: 13.22
ARIN Region origin ASes announcing only one prefix: 3873
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: 2151
Number of ARIN addresses announced to Internet: 964594401
Equivalent to 57 /8s, 126 /16s and 138 /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: 49802
Total RIPE prefixes after maximum aggregation: 27085
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 51503
Unique aggregates announced from the RIPE address blocks: 37910
RIPE Region origin ASes present in the Internet Routing Table: 4712
RIPE Prefixes per ASN: 10.93
RIPE Region origin ASes announcing only one prefix: 1970
RIPE Region transit ASes present in the Internet Routing Table: 708
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1911
Number of RIPE addresses announced to Internet: 281219792
Equivalent to 16 /8s, 195 /16s and 18 /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: 51922
Total LACNIC prefixes after maximum aggregation: 15743
LACNIC Deaggregation factor: 3.30
Prefixes being announced from the LACNIC address blocks: 50536
Unique aggregates announced from the LACNIC address blocks: 24211
LACNIC Region origin ASes present in the Internet Routing Table: 4365
LACNIC Prefixes per ASN: 11.58
LACNIC Region origin ASes announcing only one prefix: 1506
LACNIC Region transit ASes present in the Internet Routing Table: 897
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: 3443
Number of LACNIC addresses announced to Internet: 101098560
Equivalent to 6 /8s, 6 /16s and 164 /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: 10372
Total AfriNIC prefixes after maximum aggregation: 2193
AfriNIC Deaggregation factor: 4.73
Prefixes being announced from the AfriNIC address blocks: 13812
Unique aggregates announced from the AfriNIC address blocks: 4187
AfriNIC Region origin ASes present in the Internet Routing Table: 272
AfriNIC Prefixes per ASN: 50.78
AfriNIC Region origin ASes announcing only one prefix: 109
AfriNIC Region transit ASes present in the Internet Routing Table: 74
Average AfriNIC Region AS path length visible: 6.6
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: 43229696
Equivalent to 2 /8s, 147 /16s and 162 /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 10140 8753 87 CHINAMOBILE-CN China Mobile Communication
56046 1572 803 179 CMNET-JIANGSU-AP China Mobile communicati
56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1491 192 53 CMNET-HUNAN-AP China Mobile communication
24547 849 177 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
17561 555 35 226 LCS-AS-AP LARUS Limited, HK
24445 511 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
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 12919 39638 3995 AMAZON-02, US
22773 3372 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3259 54879 2506 DNIC-AS-00749, US
4155 2524 187 1534 USDA-1, US
367 2423 2899 1169 DNIC-ASBLK-00306-00371, US
36352 2331 195 1069 AS-COLOCROSSING, US
7018 2222 22910 1588 ATT-INTERNET4, US
11776 1878 257 217 ATLANTICBB-JOHNSTOWN, US
6167 1804 3547 466 CELLCO-PART, US
209 1670 4890 278 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 1258 98 1018 AKAMAI-ASN1, NL
3257 928 2075 750 GTT-BACKBONE GTT, US
3215 927 4886 285 France Telecom - Orange, FR
25019 851 1290 134 SAUDINETSTC-AS, SA
34984 777 80 463 TELLCOM-AS, TR
203214 637 49 367 HULUMTELE, IQ
8452 602 1842 17 TE-AS TE-AS, EG
8376 570 53 22 Jordan Data Communications, JO
212238 570 41 503 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 7517 2077 1001 UNINET, MX
11830 1993 369 64 Instituto Costarricense de Electricidad y
10620 1735 256 1228 Telmex Colombia S.A., CO
3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1194 371 21 Telefonica del Peru S.A.A., PE
26615 1013 2503 53 TIM SA, BR
18881 878 1127 31 TELEFONICA BRASIL S.A, BR
28006 644 77 295 CORPORACION NACIONAL DE TELECOMUNICACIONE
27651 633 90 53 ENTEL CHILE S.A., CL
26599 541 2876 72 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 1459 389 16 LINKdotNET-AS, EG
29571 1128 101 73 ORANGE-COTE-IVOIRE, CI
20011 980 183 284 INTERNET-SOLUTIONS, ZA
24835 864 509 44 RAYA-AS, EG
36935 679 520 41 Vodafone-, EG
36992 604 1229 126 ETISALAT-MISR, EG
36914 541 82 3 KENET-AS, KE
37069 463 1030 15 MOBINIL, EG
36903 417 195 306 MT-MPLS, MA
2018 374 318 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 12919 39638 3995 AMAZON-02, US
9808 10140 8753 87 CHINAMOBILE-CN China Mobile Communication
8151 7517 2077 1001 UNINET, MX
22773 3372 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3259 54879 2506 DNIC-AS-00749, US
4155 2524 187 1534 USDA-1, US
367 2423 2899 1169 DNIC-ASBLK-00306-00371, US
36352 2331 195 1069 AS-COLOCROSSING, US
7018 2222 22910 1588 ATT-INTERNET4, US
11830 1993 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 10140 10053 CHINAMOBILE-CN China Mobile Communications Grou
8151 7517 6516 UNINET, MX
22773 3372 3197 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1993 1929 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1878 1661 ATLANTICBB-JOHNSTOWN, US
56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1459 1443 LINKdotNET-AS, EG
56047 1491 1438 CMNET-HUNAN-AP China Mobile communications corp
56046 1572 1393 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 /14:576 /15:1101 /16:7615 /17:3467 /18:4204
/19:7770 /20:12569 /21:15717 /22:28362 /23:28305 /24:159817
/25:60 /26:74 /27:35 /28:15 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3889 7517 UNINET, MX
22773 2514 3372 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2321 12919 AMAZON-02, US
11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
10620 980 1735 Telmex Colombia S.A., CO
209 965 1670 CENTURYLINK-US-LEGACY-QWEST, US
19901 933 1169 BRSPD-PUBLIC, US
36352 930 2331 AS-COLOCROSSING, US
11776 881 1878 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 2:476 3:594 4:5 5:835 6:150
7:5 8:641 11:171 12:999 13:286 14:141
15:301 16:241 17:5 18:883 20:165 21:4
22:188 23:2552 24:954 27:24 29:19 31:478
32:18 34:10 35:132 36:1225 37:1173 38:2313
39:542 40:54 41:948 42:218 43:207 44:25
45:4243 46:968 47:84 49:54 50:353 51:382
52:1387 54:276 55:1074 56:9 57:18 58:45
59:28 60:16 61:64 62:538 63:780 64:1883
65:1089 66:1624 67:968 68:417 69:1196 70:438
71:212 72:865 74:984 75:432 76:247 77:502
78:353 79:339 80:314 81:347 82:684 83:246
84:353 85:561 86:251 87:249 88:291 89:843
90:104 91:968 92:668 93:479 94:958 95:643
96:281 97:65 98:476 99:161 100:36 101:30
102:337 103:1235 104:1470 105:135 106:62 107:1486
108:543 109:387 110:57 111:1928 112:463 113:39
114:65 115:20 116:53 117:1046 118:173 119:133
120:1167 121:43 122:110 123:147 124:57 125:24
128:488 129:286 130:673 131:943 132:558 133:213
134:554 135:117 136:561 137:506 138:1038 139:424
140:711 141:427 142:975 143:699 144:417 145:76
146:699 147:495 148:857 149:739 150:368 151:704
152:531 153:125 154:1557 155:799 156:1387 157:373
158:484 159:671 160:880 161:740 162:1003 163:355
164:729 165:843 166:725 167:653 168:1511 169:145
170:1686 171:122 172:1416 173:813 174:254 175:64
176:689 177:1138 178:525 179:801 180:50 181:1915
182:45 183:880 184:505 185:3552 186:2493 187:1485
188:779 189:1796 190:5148 191:491 192:5125 193:1824
194:1248 195:943 196:806 197:1535 198:2694 199:4886
200:4049 201:3410 202:985 203:709 204:2150 205:1998
206:1570 207:1515 208:1373 209:1966 210:308 211:426
212:979 213:880 214:1004 215:42 216:2515 217:446
218:524 219:20 220:25 221:301 222:32 223:740
End of report
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