Routing Table Report 04:00 +10GMT Thu 26 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 395241
Prefixes after maximum aggregation: 173952
Deaggregation factor: 2.27
Unique aggregates announced to Internet: 191375
Total ASes present in the Internet Routing Table: 39920
Prefixes per ASN: 9.90
Origin-only ASes present in the Internet Routing Table: 32650
Origin ASes announcing only one prefix: 15501
Transit ASes present in the Internet Routing Table: 5387
Transit-only ASes present in the Internet Routing Table: 138
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: 304
Unregistered ASNs in the Routing Table: 121
Number of 32-bit ASNs allocated by the RIRs: 2213
Number of 32-bit ASNs visible in the Routing Table: 1883
Prefixes from 32-bit ASNs in the Routing Table: 4565
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2512161424
Equivalent to 149 /8s, 188 /16s and 138 /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: 167904
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97691
Total APNIC prefixes after maximum aggregation: 31603
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 93968
Unique aggregates announced from the APNIC address blocks: 38993
APNIC Region origin ASes present in the Internet Routing Table: 4642
APNIC Prefixes per ASN: 20.24
APNIC Region origin ASes announcing only one prefix: 1240
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: 136
Number of APNIC addresses announced to Internet: 635177312
Equivalent to 37 /8s, 220 /16s and 9 /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: 149176
Total ARIN prefixes after maximum aggregation: 75262
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 120739
Unique aggregates announced from the ARIN address blocks: 49140
ARIN Region origin ASes present in the Internet Routing Table: 14870
ARIN Prefixes per ASN: 8.12
ARIN Region origin ASes announcing only one prefix: 5682
ARIN Region transit ASes present in the Internet Routing Table: 1582
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: 14
Number of ARIN addresses announced to Internet: 805069632
Equivalent to 47 /8s, 252 /16s and 99 /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: 97324
Total RIPE prefixes after maximum aggregation: 52096
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 89309
Unique aggregates announced from the RIPE address blocks: 55788
RIPE Region origin ASes present in the Internet Routing Table: 16270
RIPE Prefixes per ASN: 5.49
RIPE Region origin ASes announcing only one prefix: 7977
RIPE Region transit ASes present in the Internet Routing Table: 2588
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: 1308
Number of RIPE addresses announced to Internet: 497976264
Equivalent to 29 /8s, 174 /16s and 131 /24s
Percentage of available RIPE address space announced: 80.2
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: 37416
Total LACNIC prefixes after maximum aggregation: 8048
LACNIC Deaggregation factor: 4.65
Prefixes being announced from the LACNIC address blocks: 37035
Unique aggregates announced from the LACNIC address blocks: 19364
LACNIC Region origin ASes present in the Internet Routing Table: 1567
LACNIC Prefixes per ASN: 23.63
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 288
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: 421
Number of LACNIC addresses announced to Internet: 95738248
Equivalent to 5 /8s, 180 /16s and 217 /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: 8915
Total AfriNIC prefixes after maximum aggregation: 2085
AfriNIC Deaggregation factor: 4.28
Prefixes being announced from the AfriNIC address blocks: 6922
Unique aggregates announced from the AfriNIC address blocks: 2144
AfriNIC Region origin ASes present in the Internet Routing Table: 508
AfriNIC Prefixes per ASN: 13.63
AfriNIC Region origin ASes announcing only one prefix: 161
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: 30871296
Equivalent to 1 /8s, 215 /16s and 15 /24s
Percentage of available AfriNIC address space announced: 46.0
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 2468 11101 975 Korea Telecom (KIX)
17974 1714 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1642 303 86 TPG Internet Pty Ltd
4755 1524 385 154 TATA Communications formerly
7552 1424 1064 7 Vietel Corporation
9829 1163 989 28 BSNL National Internet Backbo
9583 1120 82 484 Sify Limited
4808 1098 2050 311 CNCGROUP IP network: China169
24560 1015 385 167 Bharti Airtel Ltd., Telemedia
18101 947 130 155 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
7029 4598 1017 201 Windstream Communications Inc
6389 3446 3807 201 bellsouth.net, inc.
18566 2093 382 177 Covad Communications
1785 1863 679 122 PaeTec Communications, Inc.
20115 1628 1554 624 Charter Communications
4323 1607 1062 384 Time Warner Telecom
22773 1520 2910 109 Cox Communications, Inc.
30036 1441 252 736 Mediacom Communications Corp
19262 1386 4683 400 Verizon Global Networks
7018 1299 7008 847 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 1777 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 64 LDCOM NETWORKS
6830 645 1928 414 UPC Distribution Services
34984 639 188 172 BILISIM TELEKOM
20940 587 192 461 Akamai Technologies European
12479 559 641 56 Uni2 Autonomous System
8551 531 360 81 Bezeq International
31148 524 36 8 FreeNet ISP
3320 517 8157 393 Deutsche Telekom AG
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 1729 322 168 TVCABLE BOGOTA
28573 1622 1068 77 NET Servicos de Comunicao S.A
8151 1458 2999 341 UniNet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
27947 644 73 96 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
3816 550 238 92 Empresa Nacional de Telecomun
7738 550 1050 31 Telecomunicacoes da Bahia S.A
6503 539 434 68 AVANTEL, S.A.
11172 539 85 106 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 1157 958 13 TEDATA
24863 832 155 43 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 232 12 18 Starcomms Nigeria Limited
29571 215 17 12 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 189 80 8 RAYA Telecom - Egypt
16637 168 664 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
7029 4598 1017 201 Windstream Communications Inc
6389 3446 3807 201 bellsouth.net, inc.
4766 2468 11101 975 Korea Telecom (KIX)
18566 2093 382 177 Covad Communications
1785 1863 679 122 PaeTec Communications, Inc.
8402 1777 480 15 Corbina telecom
10620 1729 322 168 TVCABLE BOGOTA
17974 1714 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1642 303 86 TPG Internet Pty Ltd
20115 1628 1554 624 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
6389 3446 3245 bellsouth.net, inc.
18566 2093 1916 Covad Communications
8402 1777 1762 Corbina telecom
1785 1863 1741 PaeTec Communications, Inc.
17974 1714 1678 PT TELEKOMUNIKASI INDONESIA
10620 1729 1561 TVCABLE BOGOTA
7545 1642 1556 TPG Internet Pty Ltd
28573 1622 1545 NET Servicos de Comunicao S.A
4766 2468 1493 Korea Telecom (KIX)
7552 1424 1417 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
37.48.64.0/18 16265 LeaseWeb AS Macro
37.52.0.0/14 6849 JSC UKRTELECOM,
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
/13:459 /14:818 /15:1462 /16:12152 /17:6165 /18:10272
/19:20307 /20:28206 /21:29270 /22:39428 /23:36937 /24:205754
/25:1180 /26:1421 /27:784 /28:166 /29:58 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 4140 4598 Windstream Communications Inc
6389 2116 3446 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1756 1777 Corbina telecom
10620 1624 1729 TVCABLE BOGOTA
30036 1400 1441 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1064 1863 PaeTec Communications, Inc.
15557 1046 1095 LDCOM NETWORKS
7011 1033 1150 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:504 2:473 4:14 5:1 6:3 8:378
12:1958 13:1 14:591 15:11 16:3 17:6
20:9 23:119 24:1721 27:1186 31:829 32:65
33:2 34:2 36:8 37:104 38:795 40:114
41:3068 42:86 43:1 44:3 46:1256 47:3
49:320 50:514 52:13 54:1 55:5 56:3
57:41 58:952 59:491 60:345 61:1177 62:921
63:1975 64:4134 65:2277 66:4488 67:2072 68:1159
69:3164 70:917 71:517 72:1822 74:2644 75:506
76:320 77:989 78:919 79:513 80:1195 81:871
82:557 83:530 84:587 85:1154 86:740 87:907
88:342 89:1537 90:257 91:4461 92:531 93:1555
94:1319 95:1146 96:414 97:301 98:886 99:38
100:20 101:130 103:681 106:4 107:135 108:129
109:1467 110:692 111:840 112:428 113:525 114:597
115:757 116:870 117:728 118:903 119:1258 120:355
121:676 122:1623 123:1058 124:1335 125:1356 128:542
129:191 130:212 131:590 132:162 133:21 134:233
135:59 136:213 137:153 138:290 139:191 140:488
141:260 142:378 143:414 144:516 145:68 146:486
147:225 148:648 149:271 150:165 151:231 152:446
153:170 154:7 155:400 156:210 157:367 158:154
159:509 160:333 161:237 162:492 163:188 164:531
165:391 166:652 167:457 168:773 169:147 170:835
171:110 172:4 173:1862 174:575 175:415 176:380
177:467 178:1226 180:1221 181:43 182:701 183:269
184:437 185:1 186:1519 187:838 188:965 189:1169
190:5375 192:5985 193:5477 194:4209 195:3389 196:1285
197:170 198:3592 199:4333 200:5658 201:1696 202:8435
203:8597 204:4344 205:2436 206:2749 207:2807 208:4021
209:3554 210:2746 211:1475 212:1977 213:1829 214:850
215:96 216:4979 217:1474 218:557 219:341 220:1250
221:558 222:324 223:270
End of report
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