[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Mon Apr 7 20:17:12 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Mon 07 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: 265515
Prefixes after maximum aggregation (per Origin AS): 116056
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 138114
Number of IPv4 prefixes with a valid ROA: 119437
Number of IPv4 prefixes with an invalid ROA: 17
Number of IPv4 prefixes with no ROA: 146061
Total ASes present in the Internet Routing Table: 20473
Prefixes per ASN: 12.97
Origin-only ASes present in the Internet Routing Table: 17619
Origin ASes announcing only one prefix: 7886
Transit ASes present in the Internet Routing Table: 2854
Transit-only ASes present in the Internet Routing Table: 760
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: 283
Number of instances of unregistered ASNs: 284
Number of 32-bit ASNs allocated by the RIRs: 46166
Number of 32-bit ASNs visible in the Routing Table: 7985
Prefixes from 32-bit ASNs in the Routing Table: 30228
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: 121
Number of addresses announced to Internet: 1558763997
Equivalent to 92 /8s, 232 /16s and 217 /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: 85022
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31936
Total APNIC prefixes after maximum aggregation: 7531
APNIC Deaggregation factor: 4.24
Prefixes being announced from the APNIC address blocks: 30698
Unique aggregates announced from the APNIC address blocks: 8076
APNIC Region origin ASes present in the Internet Routing Table: 1228
APNIC Prefixes per ASN: 25.00
APNIC Region origin ASes announcing only one prefix: 494
APNIC Region transit ASes present in the Internet Routing Table: 209
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: 569
Number of APNIC addresses announced to Internet: 168834924
Equivalent to 10 /8s, 16 /16s and 55 /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: 125361
Total ARIN prefixes after maximum aggregation: 64444
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122698
Unique aggregates announced from the ARIN address blocks: 65941
ARIN Region origin ASes present in the Internet Routing Table: 9376
ARIN Prefixes per ASN: 13.09
ARIN Region origin ASes announcing only one prefix: 3900
ARIN Region transit ASes present in the Internet Routing Table: 872
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: 965808353
Equivalent to 57 /8s, 145 /16s and 16 /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: 49878
Total RIPE prefixes after maximum aggregation: 27189
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 51600
Unique aggregates announced from the RIPE address blocks: 37954
RIPE Region origin ASes present in the Internet Routing Table: 4661
RIPE Prefixes per ASN: 11.07
RIPE Region origin ASes announcing only one prefix: 1959
RIPE Region transit ASes present in the Internet Routing Table: 708
Average RIPE Region AS path length visible: 5.6
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: 281815632
Equivalent to 16 /8s, 204 /16s and 42 /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: 47678
Total LACNIC prefixes after maximum aggregation: 14452
LACNIC Deaggregation factor: 3.30
Prefixes being announced from the LACNIC address blocks: 46602
Unique aggregates announced from the LACNIC address blocks: 21800
LACNIC Region origin ASes present in the Internet Routing Table: 4047
LACNIC Prefixes per ASN: 11.52
LACNIC Region origin ASes announcing only one prefix: 1426
LACNIC Region transit ASes present in the Internet Routing Table: 838
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3179
Number of LACNIC addresses announced to Internet: 98748992
Equivalent to 5 /8s, 226 /16s and 202 /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: 10379
Total AfriNIC prefixes after maximum aggregation: 2233
AfriNIC Deaggregation factor: 4.65
Prefixes being announced from the AfriNIC address blocks: 13796
Unique aggregates announced from the AfriNIC address blocks: 4227
AfriNIC Region origin ASes present in the Internet Routing Table: 278
AfriNIC Prefixes per ASN: 49.63
AfriNIC Region origin ASes announcing only one prefix: 107
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: 154
Number of AfriNIC addresses announced to Internet: 43505408
Equivalent to 2 /8s, 151 /16s and 215 /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 10123 8753 88 CHINAMOBILE-CN China Mobile Communication
56046 1584 811 187 CMNET-JIANGSU-AP China Mobile communicati
56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1480 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 503 32 214 LCS-AS-AP LARUS Limited, HK
45102 475 762 134 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 12985 39639 3965 AMAZON-02, US
22773 3397 3017 180 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2599 195 1588 USDA-1, US
367 2472 2876 1197 DNIC-ASBLK-00306-00371, US
36352 2388 198 1070 AS-COLOCROSSING, US
7018 2214 22907 1579 ATT-INTERNET4, US
11776 1892 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1830 3621 458 CELLCO-PART, US
209 1668 4890 276 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 1253 98 1012 AKAMAI-ASN1, NL
3215 926 4886 285 France Telecom - Orange, FR
3257 926 2075 747 GTT-BACKBONE GTT, US
25019 846 1299 129 SAUDINETSTC-AS, SA
34984 647 72 468 TELLCOM-AS, TR
8452 618 1842 17 TE-AS TE-AS, EG
203214 578 43 348 HULUMTELE, IQ
8376 570 53 22 Jordan Data Communications, JO
51167 567 113 250 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 7350 2020 1003 UNINET, MX
11830 1993 369 64 Instituto Costarricense de Electricidad y
10620 1876 282 1276 Telmex Colombia S.A., CO
3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1193 371 22 Telefonica del Peru S.A.A., PE
26615 987 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 545 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 1482 389 16 LINKdotNET-AS, EG
29571 1013 101 73 ORANGE-COTE-IVOIRE, CI
20011 981 185 285 INTERNET-SOLUTIONS, ZA
24835 807 504 37 RAYA-AS, EG
36935 687 520 41 Vodafone-, EG
36992 604 1229 126 ETISALAT-MISR, EG
36914 548 82 3 KENET-AS, KE
37069 465 1046 15 MOBINIL, EG
36903 413 193 302 MT-MPLS, MA
2018 373 318 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 12985 39639 3965 AMAZON-02, US
9808 10123 8753 88 CHINAMOBILE-CN China Mobile Communication
8151 7350 2020 1003 UNINET, MX
22773 3397 3017 180 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2599 195 1588 USDA-1, US
367 2472 2876 1197 DNIC-ASBLK-00306-00371, US
36352 2388 198 1070 AS-COLOCROSSING, US
7018 2214 22907 1579 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 10123 10035 CHINAMOBILE-CN China Mobile Communications Grou
8151 7350 6347 UNINET, MX
22773 3397 3217 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1993 1929 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1892 1676 ATLANTICBB-JOHNSTOWN, US
24863 1482 1466 LINKdotNET-AS, EG
56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c
56047 1480 1427 CMNET-HUNAN-AP China Mobile communications corp
56046 1584 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 RESERVED, ZZ
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 /12:151
/13:216 /14:577 /15:1100 /16:7586 /17:3452 /18:4215
/19:7723 /20:12442 /21:15549 /22:28104 /23:27830 /24:156260
/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 3869 7350 UNINET, MX
22773 2536 3397 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2331 12985 AMAZON-02, US
11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
10620 1036 1876 Telmex Colombia S.A., CO
36352 978 2388 AS-COLOCROSSING, US
209 966 1668 CENTURYLINK-US-LEGACY-QWEST, US
19901 943 1194 BRSPD-PUBLIC, US
11776 881 1892 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 2:477 3:609 4:5 5:832 6:149
7:5 8:638 11:171 12:998 13:293 14:137
15:301 16:241 17:5 18:884 20:166 21:4
22:188 23:2497 24:773 27:26 29:19 31:553
32:18 34:10 35:133 36:1228 37:1084 38:2087
39:543 40:54 41:933 42:221 43:200 44:33
45:4042 46:933 47:83 49:44 50:375 51:383
52:1383 54:276 55:877 56:11 57:18 58:45
59:27 60:16 61:74 62:553 63:778 64:1912
65:1081 66:1586 67:999 68:424 69:1200 70:428
71:209 72:759 74:984 75:435 76:247 77:461
78:336 79:275 80:304 81:332 82:767 83:234
84:363 85:483 86:236 87:253 88:286 89:855
90:105 91:998 92:684 93:453 94:961 95:759
96:314 97:66 98:472 99:160 100:35 101:24
102:439 103:1236 104:1479 105:135 106:58 107:1502
108:536 109:404 110:57 111:1907 112:463 113:41
114:59 115:18 116:56 117:1036 118:165 119:130
120:1163 121:42 122:131 123:153 124:57 125:25
128:468 129:284 130:662 131:936 132:567 133:213
134:484 135:117 136:580 137:497 138:958 139:435
140:714 141:431 142:971 143:679 144:425 145:109
146:684 147:479 148:861 149:749 150:378 151:639
152:509 153:127 154:1519 155:810 156:1228 157:368
158:536 159:751 160:821 161:706 162:992 163:353
164:725 165:830 166:748 167:640 168:1199 169:153
170:1639 171:120 172:1398 173:855 174:253 175:51
176:604 177:1060 178:532 179:734 180:50 181:1764
182:29 183:855 184:500 185:3436 186:2151 187:1457
188:822 189:1780 190:4404 191:437 192:5147 193:1854
194:1247 195:945 196:794 197:1551 198:2701 199:4898
200:3682 201:3350 202:984 203:719 204:2166 205:1933
206:1563 207:1506 208:1364 209:2000 210:311 211:431
212:1105 213:868 214:1003 215:42 216:2508 217:430
218:524 219:19 220:20 221:301 222:32 223:726
End of report
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