Routing Table Report 04:00 +10GMT Mon 27 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 398271
Prefixes after maximum aggregation: 170120
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 193576
Total ASes present in the Internet Routing Table: 40214
Prefixes per ASN: 9.90
Origin-only ASes present in the Internet Routing Table: 32800
Origin ASes announcing only one prefix: 15525
Transit ASes present in the Internet Routing Table: 5404
Transit-only ASes present in the Internet Routing Table: 145
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: 323
Unregistered ASNs in the Routing Table: 133
Number of 32-bit ASNs allocated by the RIRs: 2294
Number of 32-bit ASNs visible in the Routing Table: 2010
Prefixes from 32-bit ASNs in the Routing Table: 4838
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 313
Number of addresses announced to Internet: 2521818768
Equivalent to 150 /8s, 79 /16s and 230 /24s
Percentage of available address space announced: 68.0
Percentage of allocated address space announced: 68.0
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: 169410
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97707
Total APNIC prefixes after maximum aggregation: 31790
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 94181
Unique aggregates announced from the APNIC address blocks: 39281
APNIC Region origin ASes present in the Internet Routing Table: 4665
APNIC Prefixes per ASN: 20.19
APNIC Region origin ASes announcing only one prefix: 1234
APNIC Region transit ASes present in the Internet Routing Table: 734
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 151
Number of APNIC addresses announced to Internet: 639959136
Equivalent to 38 /8s, 37 /16s and 0 /24s
Percentage of available APNIC address space announced: 81.2
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: 148508
Total ARIN prefixes after maximum aggregation: 75372
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120307
Unique aggregates announced from the ARIN address blocks: 49605
ARIN Region origin ASes present in the Internet Routing Table: 14920
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5680
ARIN Region transit ASes present in the Internet Routing Table: 1573
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: 15
Number of ARIN addresses announced to Internet: 805439488
Equivalent to 48 /8s, 2 /16s and 8 /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: 99561
Total RIPE prefixes after maximum aggregation: 52664
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 91271
Unique aggregates announced from the RIPE address blocks: 56696
RIPE Region origin ASes present in the Internet Routing Table: 16331
RIPE Prefixes per ASN: 5.59
RIPE Region origin ASes announcing only one prefix: 8006
RIPE Region transit ASes present in the Internet Routing Table: 2606
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: 1383
Number of RIPE addresses announced to Internet: 501212424
Equivalent to 29 /8s, 223 /16s and 229 /24s
Percentage of available RIPE address space announced: 80.7
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: 38734
Total LACNIC prefixes after maximum aggregation: 8096
LACNIC Deaggregation factor: 4.78
Prefixes being announced from the LACNIC address blocks: 38423
Unique aggregates announced from the LACNIC address blocks: 19574
LACNIC Region origin ASes present in the Internet Routing Table: 1573
LACNIC Prefixes per ASN: 24.43
LACNIC Region origin ASes announcing only one prefix: 441
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: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 457
Number of LACNIC addresses announced to Internet: 97407368
Equivalent to 5 /8s, 206 /16s and 81 /24s
Percentage of available LACNIC address space announced: 64.5
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: 8749
Total AfriNIC prefixes after maximum aggregation: 2103
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6761
Unique aggregates announced from the AfriNIC address blocks: 2129
AfriNIC Region origin ASes present in the Internet Routing Table: 512
AfriNIC Prefixes per ASN: 13.21
AfriNIC Region origin ASes announcing only one prefix: 164
AfriNIC Region transit ASes present in the Internet Routing Table: 119
Average AfriNIC Region AS path length visible: 4.4
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: 31355648
Equivalent to 1 /8s, 222 /16s and 115 /24s
Percentage of available AfriNIC address space announced: 46.7
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 2485 11107 991 Korea Telecom (KIX)
17974 1725 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1643 303 87 TPG Internet Pty Ltd
4755 1559 386 157 TATA Communications formerly
9829 1182 997 29 BSNL National Internet Backbo
4808 1148 2112 319 CNCGROUP IP network: China169
9583 1129 84 483 Sify Limited
7552 1104 1062 11 Vietel Corporation
24560 1011 385 167 Bharti Airtel Ltd., Telemedia
18101 950 130 155 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 3433 3807 199 bellsouth.net, inc.
7029 3417 1014 159 Windstream Communications Inc
18566 2091 382 177 Covad Communications
1785 1873 680 126 PaeTec Communications, Inc.
20115 1629 1551 630 Charter Communications
4323 1609 1059 383 Time Warner Telecom
22773 1536 2910 110 Cox Communications, Inc.
30036 1416 254 744 Mediacom Communications Corp
19262 1388 4703 398 Verizon Global Networks
7018 1301 6963 846 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 1800 480 15 Corbina telecom
2118 1398 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2184 60 LDCOM NETWORKS
34984 656 188 173 BILISIM TELEKOM
6830 644 1927 413 UPC Distribution Services
20940 627 203 480 Akamai Technologies European
12479 608 644 55 Uni2 Autonomous System
8551 597 360 81 Bezeq International
31148 541 37 9 FreeNet ISP
3320 533 8450 399 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 1751 324 171 TVCABLE BOGOTA
28573 1668 1088 62 NET Servicos de Comunicao S.A
8151 1481 3011 349 UniNet S.A. de C.V.
7303 1328 822 186 Telecom Argentina Stet-France
26615 854 664 33 Tim Brasil S.A.
27947 662 67 108 Telconet S.A
11172 632 91 72 Servicios Alestra S.A de C.V
22047 581 322 17 VTR PUNTO NET S.A.
6503 571 418 66 AVANTEL, S.A.
3816 557 239 93 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 1253 958 13 TEDATA
24863 833 274 37 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
33776 183 12 20 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
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 3433 3807 199 bellsouth.net, inc.
7029 3417 1014 159 Windstream Communications Inc
4766 2485 11107 991 Korea Telecom (KIX)
18566 2091 382 177 Covad Communications
1785 1873 680 126 PaeTec Communications, Inc.
8402 1800 480 15 Corbina telecom
10620 1751 324 171 TVCABLE BOGOTA
17974 1725 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1668 1088 62 NET Servicos de Comunicao S.A
7545 1643 303 87 TPG Internet Pty Ltd
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 3417 3258 Windstream Communications Inc
18566 2091 1914 Covad Communications
8402 1800 1785 Corbina telecom
1785 1873 1747 PaeTec Communications, Inc.
17974 1725 1689 PT TELEKOMUNIKASI INDONESIA
28573 1668 1606 NET Servicos de Comunicao S.A
10620 1751 1580 TVCABLE BOGOTA
7545 1643 1556 TPG Internet Pty Ltd
4766 2485 1494 Korea Telecom (KIX)
22773 1536 1426 Cox Communications, Inc.
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
23.27.0.0/16 18779 Guru.com
27.112.114.0/24 23884 Proimage Engineering and Comm
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 /10:28 /11:81 /12:232
/13:459 /14:816 /15:1471 /16:12157 /17:6209 /18:10373
/19:20445 /20:28335 /21:29225 /22:39742 /23:37057 /24:207912
/25:1207 /26:1451 /27:781 /28:169 /29:57 /30:14
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3071 3417 Windstream Communications Inc
6389 2107 3433 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1779 1800 Corbina telecom
10620 1648 1751 TVCABLE BOGOTA
30036 1366 1416 Mediacom Communications Corp
11492 1122 1159 Cable One
1785 1064 1873 PaeTec Communications, Inc.
8452 1061 1253 TEDATA
15557 1046 1099 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:510 2:758 4:14 6:3 8:389 12:1965
13:1 14:601 15:11 16:3 17:7 20:8
23:134 24:1736 27:1189 31:942 32:65 33:2
34:2 36:9 37:205 38:779 40:116 41:2961
42:113 43:1 44:3 46:1344 47:3 49:334
50:510 52:13 54:2 55:7 56:3 57:38
58:966 59:494 60:339 61:1191 62:962 63:2010
64:4125 65:2283 66:4469 67:2032 68:1173 69:3169
70:909 71:406 72:1792 74:2647 75:470 76:318
77:968 78:968 79:507 80:1219 81:876 82:629
83:528 84:589 85:1154 86:729 87:913 88:334
89:1562 90:282 91:4511 92:510 93:1353 94:1385
95:1120 96:422 97:311 98:823 99:38 100:4
101:153 103:833 106:66 107:162 108:176 109:1542
110:704 111:856 112:435 113:531 114:595 115:783
116:872 117:711 118:905 119:1263 120:364 121:690
122:1628 123:1081 124:1340 125:1317 128:536 129:190
130:217 131:590 132:156 133:21 134:234 135:62
136:214 137:183 138:268 139:145 140:468 141:261
142:394 143:414 144:511 145:69 146:485 147:240
148:733 149:300 150:164 151:198 152:448 153:171
154:7 155:401 156:213 157:369 158:164 159:514
160:321 161:245 162:342 163:182 164:527 165:393
166:559 167:457 168:763 169:148 170:838 171:118
172:4 173:1726 174:598 175:421 176:513 177:512
178:1280 180:1186 181:68 182:737 183:283 184:434
185:1 186:2015 187:857 188:1082 189:1204 190:5504
192:5977 193:5543 194:4343 195:3393 196:1280 197:165
198:3617 199:4413 200:5687 201:1729 202:8380 203:8637
204:4358 205:2442 206:2745 207:2790 208:4065 209:3548
210:2754 211:1479 212:2017 213:1842 214:834 215:100
216:5023 217:1500 218:549 219:337 220:1229 221:562
222:324 223:314
End of report