Routing Table Report 04:00 +10GMT Mon 31 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 379645
Prefixes after maximum aggregation: 166241
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 186109
Total ASes present in the Internet Routing Table: 39162
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 32333
Origin ASes announcing only one prefix: 15481
Transit ASes present in the Internet Routing Table: 5264
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1604
Unregistered ASNs in the Routing Table: 848
Number of 32-bit ASNs allocated by the RIRs: 1917
Number of 32-bit ASNs visible in the Routing Table: 1565
Prefixes from 32-bit ASNs in the Routing Table: 3630
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2488701024
Equivalent to 148 /8s, 86 /16s and 144 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 159767
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94728
Total APNIC prefixes after maximum aggregation: 30996
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91171
Unique aggregates announced from the APNIC address blocks: 38112
APNIC Region origin ASes present in the Internet Routing Table: 4591
APNIC Prefixes per ASN: 19.86
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 720
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 98
Number of APNIC addresses announced to Internet: 629413984
Equivalent to 37 /8s, 132 /16s and 24 /24s
Percentage of available APNIC address space announced: 79.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 145768
Total ARIN prefixes after maximum aggregation: 74383
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117713
Unique aggregates announced from the ARIN address blocks: 48179
ARIN Region origin ASes present in the Internet Routing Table: 14713
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5637
ARIN Region transit ASes present in the Internet Routing Table: 1554
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804684032
Equivalent to 47 /8s, 246 /16s and 129 /24s
Percentage of available ARIN address space announced: 64.0
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, 393216-394239
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,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 173/8,
174/8, 184/8, 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: 91207
Total RIPE prefixes after maximum aggregation: 50863
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 83832
Unique aggregates announced from the RIPE address blocks: 54299
RIPE Region origin ASes present in the Internet Routing Table: 16081
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7973
RIPE Region transit ASes present in the Internet Routing Table: 2529
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1094
Number of RIPE addresses announced to Internet: 491179456
Equivalent to 29 /8s, 70 /16s and 205 /24s
Percentage of available RIPE address space announced: 79.1
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
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 35394
Total LACNIC prefixes after maximum aggregation: 7898
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 34938
Unique aggregates announced from the LACNIC address blocks: 18146
LACNIC Region origin ASes present in the Internet Routing Table: 1540
LACNIC Prefixes per ASN: 22.69
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 283
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 357
Number of LACNIC addresses announced to Internet: 92681920
Equivalent to 5 /8s, 134 /16s and 54 /24s
Percentage of available LACNIC address space announced: 61.4
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8728
Total AfriNIC prefixes after maximum aggregation: 2025
AfriNIC Deaggregation factor: 4.31
Prefixes being announced from the AfriNIC address blocks: 6850
Unique aggregates announced from the AfriNIC address blocks: 1979
AfriNIC Region origin ASes present in the Internet Routing Table: 495
AfriNIC Prefixes per ASN: 13.84
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 109
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27907328
Equivalent to 1 /8s, 169 /16s and 213 /24s
Percentage of available AfriNIC address space announced: 41.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2507 11096 967 Korea Telecom (KIX)
17974 1747 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1613 303 86 TPG Internet Pty Ltd
4755 1539 637 174 TATA Communications formerly
7552 1393 1064 8 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1091 80 499 Sify Limited
4808 1090 2103 312 CNCGROUP IP network: China169
24560 964 342 218 Bharti Airtel Ltd., Telemedia
18101 954 166 150 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3543 3814 220 bellsouth.net, inc.
7029 2332 1016 197 Windstream Communications Inc
18566 2096 383 177 Covad Communications
1785 1841 680 122 PaeTec Communications, Inc.
4323 1623 1078 388 Time Warner Telecom
20115 1589 1544 622 Charter Communications
22773 1459 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1395 253 668 Mediacom Communications Corp
7018 1311 7029 855 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1523 352 13 Corbina telecom
6830 653 1927 415 UPC Distribution Services
34984 590 108 180 BILISIM TELEKOM
20940 547 182 422 Akamai Technologies European
3320 506 8169 386 Deutsche Telekom AG
12479 479 596 9 Uni2 Autonomous System
3292 478 2074 405 TDC Tele Danmark
8866 461 133 26 Bulgarian Telecommunication C
8551 403 354 44 Bezeq International
31148 402 22 111 FreeNet ISP
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1699 314 156 TVCABLE BOGOTA
28573 1463 1040 72 NET Servicos de Comunicao S.A
8151 1414 2927 346 UniNet S.A. de C.V.
7303 1231 748 177 Telecom Argentina Stet-France
27947 589 72 83 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 567 434 68 AVANTEL, S.A.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 537 233 95 Empresa Nacional de Telecomun
11172 525 86 96 Servicios Alestra S.A de C.V
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 827 446 12 TEDATA
24863 802 146 36 LINKdotNET AS number
15475 442 74 8 Nile Online
36992 298 415 19 Etisalat MISR
3741 280 939 229 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 219 18 14 Ci Telecom Autonomous system
12258 196 28 57 Vodacom Internet Company
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3543 3814 220 bellsouth.net, inc.
4766 2507 11096 967 Korea Telecom (KIX)
7029 2332 1016 197 Windstream Communications Inc
18566 2096 383 177 Covad Communications
1785 1841 680 122 PaeTec Communications, Inc.
17974 1747 511 36 PT TELEKOMUNIKASI INDONESIA
10620 1699 314 156 TVCABLE BOGOTA
4323 1623 1078 388 Time Warner Telecom
7545 1613 303 86 TPG Internet Pty Ltd
20115 1589 1544 622 Charter Communications
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2332 2135 Windstream Communications Inc
18566 2096 1919 Covad Communications
1785 1841 1719 PaeTec Communications, Inc.
17974 1747 1711 PT TELEKOMUNIKASI INDONESIA
10620 1699 1543 TVCABLE BOGOTA
4766 2507 1540 Korea Telecom (KIX)
7545 1613 1527 TPG Internet Pty Ltd
8402 1523 1510 Corbina telecom
28573 1463 1391 NET Servicos de Comunicao S.A
7552 1393 1385 Vietel Corporation
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.0.0/16 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/current/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 /8:19 /9:12 /10:27 /11:81 /12:236
/13:465 /14:809 /15:1426 /16:12025 /17:6068 /18:10085
/19:19946 /20:27549 /21:27525 /22:37195 /23:35260 /24:197525
/25:1148 /26:1336 /27:743 /28:156 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2183 3543 bellsouth.net, inc.
18566 2045 2096 Covad Communications
7029 2002 2332 Windstream Communications Inc
10620 1594 1699 TVCABLE BOGOTA
8402 1499 1523 Corbina telecom
30036 1356 1395 Mediacom Communications Corp
11492 1118 1156 Cable One
1785 1056 1841 PaeTec Communications, Inc.
7011 1050 1168 Citizens Utilities
22773 947 1459 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:412 2:492 4:15 5:1 6:3 8:360
12:1945 13:1 14:541 15:11 16:3 17:7
20:9 23:60 24:1681 27:973 31:652 32:61
33:2 34:2 36:4 38:757 40:110 41:2845
42:53 44:3 46:1016 47:3 49:296 50:442
52:13 55:5 56:2 57:40 58:883 59:490
60:363 61:1118 62:1089 63:1954 64:4060 65:2304
66:4276 67:1988 68:1153 69:3202 70:882 71:383
72:1801 74:2606 75:393 76:317 77:879 78:871
79:472 80:1138 81:840 82:520 83:527 84:617
85:1131 86:403 87:888 88:354 89:1609 90:237
91:4243 92:530 93:1537 94:1302 95:1083 96:434
97:284 98:928 99:37 101:220 103:412 106:70
107:78 108:72 109:1052 110:664 111:795 112:334
113:487 114:617 115:710 116:882 117:721 118:863
119:1266 120:339 121:693 122:1569 123:1017 124:1354
125:1361 128:243 129:179 130:159 131:627 132:148
133:21 134:220 135:51 136:213 137:140 138:286
139:123 140:483 141:311 142:389 143:421 144:494
145:63 146:461 147:218 148:637 149:266 150:166
151:194 152:446 153:178 154:7 155:389 156:208
157:328 158:154 159:484 160:328 161:214 162:371
163:173 164:511 165:369 166:538 167:434 168:739
169:146 170:880 171:86 172:4 173:1718 174:675
175:423 176:288 177:365 178:1083 180:1124 181:36
182:654 183:221 184:383 185:1 186:1298 187:707
188:950 189:871 190:5138 192:5913 193:5042 194:3557
195:3116 196:1240 197:166 198:3618 199:4167 200:5512
201:1693 202:8558 203:8491 204:4296 205:2367 206:2673
207:2831 208:4023 209:3571 210:2716 211:1458 212:2085
213:1778 214:796 215:95 216:4915 217:1602 218:564
219:342 220:1253 221:515 222:343 223:272
End of report
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