Routing Table Report 08:00 +10GMT Thu 23 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 392246
Prefixes after maximum aggregation: 168044
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 193208
Total ASes present in the Internet Routing Table: 38036
Prefixes per ASN: 10.31
Origin-only ASes present in the Internet Routing Table: 32752
Origin ASes announcing only one prefix: 15541
Transit ASes present in the Internet Routing Table: 5284
Transit-only ASes present in the Internet Routing Table: 130
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1124
Unregistered ASNs in the Routing Table: 191
Number of 32-bit ASNs allocated by the RIRs: 2289
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4808
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 272
Number of addresses announced to Internet: 2538760960
Equivalent to 151 /8s, 82 /16s and 107 /24s
Percentage of available address space announced: 68.5
Percentage of allocated address space announced: 68.5
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: 165347
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92702
Total APNIC prefixes after maximum aggregation: 30343
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 90023
Unique aggregates announced from the APNIC address blocks: 39189
APNIC Region origin ASes present in the Internet Routing Table: 4607
APNIC Prefixes per ASN: 19.54
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 704
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 639840256
Equivalent to 38 /8s, 35 /16s and 48 /24s
Percentage of available APNIC address space announced: 81.1
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: 147309
Total ARIN prefixes after maximum aggregation: 74942
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119384
Unique aggregates announced from the ARIN address blocks: 49540
ARIN Region origin ASes present in the Internet Routing Table: 14849
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5669
ARIN Region transit ASes present in the Internet Routing Table: 1506
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805394944
Equivalent to 48 /8s, 1 /16s and 90 /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: 99836
Total RIPE prefixes after maximum aggregation: 52603
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91517
Unique aggregates announced from the RIPE address blocks: 56695
RIPE Region origin ASes present in the Internet Routing Table: 16316
RIPE Prefixes per ASN: 5.61
RIPE Region origin ASes announcing only one prefix: 8015
RIPE Region transit ASes present in the Internet Routing Table: 2595
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 501032448
Equivalent to 29 /8s, 221 /16s and 38 /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: 37921
Total LACNIC prefixes after maximum aggregation: 7984
LACNIC Deaggregation factor: 4.75
Prefixes being announced from the LACNIC address blocks: 37753
Unique aggregates announced from the LACNIC address blocks: 19508
LACNIC Region origin ASes present in the Internet Routing Table: 1564
LACNIC Prefixes per ASN: 24.14
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 96788480
Equivalent to 5 /8s, 196 /16s and 224 /24s
Percentage of available LACNIC address space announced: 64.1
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: 8945
Total AfriNIC prefixes after maximum aggregation: 2083
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6980
Unique aggregates announced from the AfriNIC address blocks: 2096
AfriNIC Region origin ASes present in the Internet Routing Table: 516
AfriNIC Prefixes per ASN: 13.53
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: 3.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 31492864
Equivalent to 1 /8s, 224 /16s and 139 /24s
Percentage of available AfriNIC address space announced: 46.9
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 1923 11104 677 Korea Telecom (KIX)
17974 1655 503 36 PT Telekomunikasi Indonesia
7545 1640 303 86 TPG Internet Pty Ltd
4755 1542 386 158 TATA Communications formerly
9829 1180 997 29 National Internet Backbone
9583 1126 84 483 Sify Limited
7552 1103 1062 11 Vietel Corporation
24560 1018 385 167 Bharti Airtel Ltd., Telemedia
4808 977 1947 279 CNCGROUP IP network China169
18101 951 131 156 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3445 1040 172 Windstream Communications Inc
6389 3439 3807 200 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
1785 1874 680 125 PaeTec Communications, Inc.
20115 1628 1551 630 Charter Communications
4323 1605 1059 380 tw telecom holdings, inc.
22773 1531 2910 110 Cox Communications Inc.
30036 1411 253 747 Mediacom Communications Corp
19262 1389 4703 399 Verizon Online LLC
7018 1315 7013 856 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1754 480 15 Corbina telecom
2118 1398 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2184 60 NEUF CEGETEL (formerly LDCOM
34984 657 188 171 BILISIM TELEKOM
6830 644 1927 413 UPC Broadband
20940 610 197 474 Akamai Technologies European
12479 604 644 55 France Telecom Espana SA
8551 568 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
31148 541 37 9 FreeNet ISP
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1749 324 171 Types of queries are: POCs, o
28573 1670 1086 66 Types of queries are: POCs, o
8151 1337 2988 342 Uninet S.A. de C.V.
7303 1296 790 185 Telecom Argentina S.A.
26615 852 672 33 Tim Celular S.A.
27947 639 67 108 Telconet S.A
11172 635 107 74 Alestra, S. de R.L. de C.V.
22047 581 322 17 Types of queries are: POCs, o
3816 554 238 91 Types of queries are: POCs, o
7738 550 1050 31 Telecomunicacoes da Bahia S.A
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1229 958 13 TEDATA
24863 831 274 34 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
33776 242 13 8 Starcomms Nigeria Limited
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
16637 157 664 86 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3445 1040 172 Windstream Communications Inc
6389 3439 3807 200 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
4766 1923 11104 677 Korea Telecom (KIX)
1785 1874 680 125 PaeTec Communications, Inc.
8402 1754 480 15 Corbina telecom
10620 1749 324 171 Types of queries are: POCs, o
28573 1670 1086 66 Types of queries are: POCs, o
17974 1655 503 36 PT Telekomunikasi Indonesia
7545 1640 303 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3439 3239 BellSouth.net Inc.
18566 2092 1915 Covad Communications Co.
1785 1874 1749 PaeTec Communications, Inc.
8402 1754 1739 Corbina telecom
17974 1655 1619 PT Telekomunikasi Indonesia
28573 1670 1604 Types of queries are: POCs, o
10620 1749 1578 Types of queries are: POCs, o
7545 1640 1554 TPG Internet Pty Ltd
22773 1531 1421 Cox Communications Inc.
2118 1398 1385 EUnet/RELCOM Autonomous Syste
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/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/london/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 /8:20 /9:12 /10:28 /11:81 /12:233
/13:459 /14:809 /15:1472 /16:12097 /17:6197 /18:10326
/19:20487 /20:28234 /21:28935 /22:39401 /23:36741 /24:206165
/25:11 /26:21 /27:20 /28:152 /29:138 /30:67
/31:0 /32:140
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3084 3445 Windstream Communications Inc
6389 2110 3439 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
8402 1733 1754 Corbina telecom
10620 1646 1749 Types of queries are: POCs, o
30036 1361 1411 Mediacom Communications Corp
11492 1122 1159 CABLE ONE, INC.
1785 1063 1874 PaeTec Communications, Inc.
15557 1046 1099 NEUF CEGETEL (formerly LDCOM
8452 1039 1229 TEDATA
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:501 2:720 4:14 6:3 8:386 12:1961
13:1 14:595 15:11 16:3 17:7 20:8
23:136 24:1731 27:1192 31:939 32:60 33:2
34:2 36:9 37:184 38:777 40:116 41:3134
42:96 44:3 46:1323 47:3 49:332 50:508
52:13 54:2 55:10 56:3 57:35 58:919
59:484 60:341 61:1088 62:968 63:2001 64:4086
65:2280 66:4444 67:2035 68:1175 69:3163 70:907
71:407 72:1791 74:2656 75:470 76:320 77:966
78:965 79:506 80:1222 81:879 82:635 83:526
84:584 85:1144 86:734 87:913 88:334 89:1562
90:282 91:4496 92:513 93:1354 94:1386 95:1115
96:414 97:312 98:831 99:38 100:4 101:153
103:810 106:65 107:160 108:171 109:1541 110:703
111:855 112:426 113:530 114:603 115:758 116:855
117:700 118:901 119:1243 120:363 121:656 122:1588
123:1075 124:1303 125:1319 128:506 129:182 130:210
131:585 132:154 133:21 134:224 135:62 136:213
137:179 138:287 139:144 140:464 141:260 142:375
143:398 144:513 145:69 146:480 147:236 148:713
149:300 150:156 151:198 152:445 153:172 154:6
155:409 156:210 157:338 158:162 159:444 160:319
161:223 162:339 163:177 164:527 165:394 166:558
167:458 168:760 169:147 170:838 171:116 172:4
173:1718 174:598 175:421 176:509 177:496 178:1275
180:1184 181:68 182:716 183:280 184:431 185:1
186:2007 187:854 188:1083 189:1180 190:5450 192:5942
193:5541 194:4344 195:3392 196:1262 197:167 198:3571
199:4372 200:5608 201:1737 202:8189 203:8547 204:4287
205:2421 206:2659 207:2725 208:4059 209:3533 210:2684
211:1448 212:2031 213:1841 214:854 215:99 216:5017
217:1504 218:536 219:336 220:1223 221:545 222:297
223:300
End of report