Routing Table Report 04:00 +10GMT Tue 31 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 394546
Prefixes after maximum aggregation: 169060
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191627
Total ASes present in the Internet Routing Table: 39938
Prefixes per ASN: 9.88
Origin-only ASes present in the Internet Routing Table: 32643
Origin ASes announcing only one prefix: 15499
Transit ASes present in the Internet Routing Table: 5394
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 34
Max AS path prepend of ASN (38964) 31
Prefixes from unregistered ASNs in the Routing Table: 314
Unregistered ASNs in the Routing Table: 120
Number of 32-bit ASNs allocated by the RIRs: 2237
Number of 32-bit ASNs visible in the Routing Table: 1901
Prefixes from 32-bit ASNs in the Routing Table: 4621
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 113
Number of addresses announced to Internet: 2512408784
Equivalent to 149 /8s, 192 /16s and 80 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 167132
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97677
Total APNIC prefixes after maximum aggregation: 31503
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 93970
Unique aggregates announced from the APNIC address blocks: 39007
APNIC Region origin ASes present in the Internet Routing Table: 4645
APNIC Prefixes per ASN: 20.23
APNIC Region origin ASes announcing only one prefix: 1241
APNIC Region transit ASes present in the Internet Routing Table: 732
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 138
Number of APNIC addresses announced to Internet: 635190624
Equivalent to 37 /8s, 220 /16s and 61 /24s
Percentage of available APNIC address space announced: 80.6
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: 147924
Total ARIN prefixes after maximum aggregation: 75128
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119976
Unique aggregates announced from the ARIN address blocks: 49246
ARIN Region origin ASes present in the Internet Routing Table: 14845
ARIN Prefixes per ASN: 8.08
ARIN Region origin ASes announcing only one prefix: 5669
ARIN Region transit ASes present in the Internet Routing Table: 1581
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 805233984
Equivalent to 47 /8s, 254 /16s and 229 /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: 97497
Total RIPE prefixes after maximum aggregation: 52177
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 89432
Unique aggregates announced from the RIPE address blocks: 55965
RIPE Region origin ASes present in the Internet Routing Table: 16289
RIPE Prefixes per ASN: 5.49
RIPE Region origin ASes announcing only one prefix: 7991
RIPE Region transit ASes present in the Internet Routing Table: 2597
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1314
Number of RIPE addresses announced to Internet: 498519304
Equivalent to 29 /8s, 182 /16s and 205 /24s
Percentage of available RIPE address space announced: 80.3
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: 37617
Total LACNIC prefixes after maximum aggregation: 8087
LACNIC Deaggregation factor: 4.65
Prefixes being announced from the LACNIC address blocks: 37237
Unique aggregates announced from the LACNIC address blocks: 19296
LACNIC Region origin ASes present in the Internet Routing Table: 1566
LACNIC Prefixes per ASN: 23.78
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 290
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 431
Number of LACNIC addresses announced to Internet: 95789192
Equivalent to 5 /8s, 181 /16s and 160 /24s
Percentage of available LACNIC address space announced: 63.4
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: 9049
Total AfriNIC prefixes after maximum aggregation: 2093
AfriNIC Deaggregation factor: 4.32
Prefixes being announced from the AfriNIC address blocks: 7074
Unique aggregates announced from the AfriNIC address blocks: 2161
AfriNIC Region origin ASes present in the Internet Routing Table: 508
AfriNIC Prefixes per ASN: 13.93
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 118
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: 30916608
Equivalent to 1 /8s, 215 /16s and 192 /24s
Percentage of available AfriNIC address space announced: 46.1
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 2476 11102 982 Korea Telecom (KIX)
17974 1714 503 35 PT TELEKOMUNIKASI INDONESIA
7545 1643 303 87 TPG Internet Pty Ltd
4755 1527 385 154 TATA Communications formerly
7552 1423 1064 7 Vietel Corporation
9829 1162 989 28 BSNL National Internet Backbo
9583 1118 81 483 Sify Limited
4808 1101 2051 313 CNCGROUP IP network: China169
24560 1014 385 167 Bharti Airtel Ltd., Telemedia
18101 948 130 155 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 3445 3807 201 bellsouth.net, inc.
7029 3209 1017 200 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1866 680 125 PaeTec Communications, Inc.
20115 1624 1552 628 Charter Communications
4323 1608 1062 384 Time Warner Telecom
22773 1521 2910 109 Cox Communications, Inc.
30036 1457 256 730 Mediacom Communications Corp
19262 1386 4683 400 Verizon Global Networks
7018 1301 7008 848 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 1752 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 64 LDCOM NETWORKS
6830 642 1927 412 UPC Distribution Services
34984 641 188 172 BILISIM TELEKOM
20940 589 193 463 Akamai Technologies European
12479 559 641 56 Uni2 Autonomous System
3320 531 8162 397 Deutsche Telekom AG
8551 530 360 81 Bezeq International
31148 529 37 9 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 1723 321 175 TVCABLE BOGOTA
28573 1637 1069 71 NET Servicos de Comunicao S.A
8151 1458 2999 347 UniNet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
11172 661 94 69 Servicios Alestra S.A de C.V
27947 648 73 98 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
7738 550 1050 31 Telecomunicacoes da Bahia S.A
6503 539 434 68 AVANTEL, S.A.
3816 523 232 121 Empresa Nacional de Telecomun
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 1237 958 13 TEDATA
24863 833 155 43 LINKdotNET AS number
6713 486 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 238 32 6 Sudatel Internet Exchange Aut
33776 232 12 18 Starcomms Nigeria Limited
29571 214 17 12 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 190 80 8 RAYA Telecom - Egypt
16637 163 664 82 MTN Network Solutions
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 3445 3807 201 bellsouth.net, inc.
7029 3209 1017 200 Windstream Communications Inc
4766 2476 11102 982 Korea Telecom (KIX)
18566 2093 382 177 Covad Communications
1785 1866 680 125 PaeTec Communications, Inc.
8402 1752 480 15 Corbina telecom
10620 1723 321 175 TVCABLE BOGOTA
17974 1714 503 35 PT TELEKOMUNIKASI INDONESIA
7545 1643 303 87 TPG Internet Pty Ltd
28573 1637 1069 71 NET Servicos de Comunicao S.A
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 3209 3009 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1866 1741 PaeTec Communications, Inc.
8402 1752 1737 Corbina telecom
17974 1714 1679 PT TELEKOMUNIKASI INDONESIA
28573 1637 1566 NET Servicos de Comunicao S.A
7545 1643 1556 TPG Internet Pty Ltd
10620 1723 1548 TVCABLE BOGOTA
4766 2476 1494 Korea Telecom (KIX)
7552 1423 1416 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
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
41.222.79.0/24 36938 >>UNKNOWN<<
62.61.220.0/24 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 /11:80 /12:232
/13:458 /14:818 /15:1461 /16:12132 /17:6157 /18:10282
/19:20325 /20:28141 /21:29117 /22:39475 /23:36826 /24:205322
/25:1186 /26:1427 /27:786 /28:171 /29:60 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2839 3209 Windstream Communications Inc
6389 2115 3445 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1731 1752 Corbina telecom
10620 1618 1723 TVCABLE BOGOTA
30036 1416 1457 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1064 1866 PaeTec Communications, Inc.
15557 1046 1095 LDCOM NETWORKS
8452 1040 1237 TEDATA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:512 2:478 4:14 5:1 6:3 8:376
12:1954 13:1 14:590 15:11 16:3 17:6
20:9 23:120 24:1721 27:1188 31:826 32:65
33:2 34:2 36:8 37:116 38:790 40:114
41:3197 42:88 43:1 44:3 46:1268 47:3
49:320 50:517 52:13 54:2 55:5 56:3
57:38 58:955 59:491 60:345 61:1187 62:924
63:1992 64:4147 65:2288 66:4424 67:2047 68:1168
69:3156 70:915 71:431 72:1801 74:2647 75:452
76:321 77:973 78:914 79:497 80:1207 81:874
82:562 83:531 84:578 85:1159 86:742 87:911
88:340 89:1541 90:258 91:4465 92:536 93:1560
94:1331 95:1137 96:414 97:305 98:799 99:38
100:20 101:131 103:697 106:4 107:139 108:129
109:1462 110:685 111:838 112:428 113:527 114:597
115:757 116:868 117:723 118:902 119:1246 120:355
121:682 122:1626 123:1060 124:1339 125:1360 128:543
129:189 130:213 131:589 132:154 133:21 134:233
135:59 136:213 137:152 138:284 139:145 140:488
141:260 142:378 143:371 144:503 145:68 146:487
147:226 148:693 149:271 150:167 151:193 152:446
153:163 154:7 155:397 156:210 157:366 158:156
159:510 160:329 161:238 162:339 163:188 164:532
165:391 166:562 167:457 168:767 169:147 170:834
171:116 172:4 173:1778 174:577 175:414 176:388
177:493 178:1236 180:1168 181:43 182:701 183:276
184:441 185:1 186:1516 187:832 188:979 189:1177
190:5412 192:5971 193:5486 194:4212 195:3387 196:1293
197:179 198:3605 199:4344 200:5684 201:1694 202:8407
203:8604 204:4345 205:2428 206:2745 207:2806 208:4071
209:3552 210:2742 211:1478 212:1973 213:1826 214:836
215:92 216:4981 217:1476 218:556 219:342 220:1255
221:558 222:324 223:273
End of report
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