The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Monday, November 4, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Tue 05 Nov, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/hk/

Analysis Summary
----------------

BGP routing table entries examined: 466755
Prefixes after maximum aggregation: 188003
Deaggregation factor: 2.48
Unique aggregates announced to Internet: 233277
Total ASes present in the Internet Routing Table: 45308
Prefixes per ASN: 10.30
Origin-only ASes present in the Internet Routing Table: 35363
Origin ASes announcing only one prefix: 16306
Transit ASes present in the Internet Routing Table: 5844
Transit-only ASes present in the Internet Routing Table: 157
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 809
Unregistered ASNs in the Routing Table: 216
Number of 32-bit ASNs allocated by the RIRs: 5301
Number of 32-bit ASNs visible in the Routing Table: 4101
Prefixes from 32-bit ASNs in the Routing Table: 12698
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 928
Number of addresses announced to Internet: 2646693888
Equivalent to 157 /8s, 193 /16s and 88 /24s
Percentage of available address space announced: 71.5
Percentage of allocated address space announced: 71.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.1
Total number of prefixes smaller than registry allocations: 161994

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 109090
Total APNIC prefixes after maximum aggregation: 33129
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 111194
Unique aggregates announced from the APNIC address blocks: 47280
APNIC Region origin ASes present in the Internet Routing Table: 4855
APNIC Prefixes per ASN: 22.90
APNIC Region origin ASes announcing only one prefix: 1235
APNIC Region transit ASes present in the Internet Routing Table: 808
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 728
Number of APNIC addresses announced to Internet: 723749376
Equivalent to 43 /8s, 35 /16s and 138 /24s
Percentage of available APNIC address space announced: 84.6

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 161950
Total ARIN prefixes after maximum aggregation: 81236
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162980
Unique aggregates announced from the ARIN address blocks: 75777
ARIN Region origin ASes present in the Internet Routing Table: 15900
ARIN Prefixes per ASN: 10.25
ARIN Region origin ASes announcing only one prefix: 6019
ARIN Region transit ASes present in the Internet Routing Table: 1627
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 33
Number of ARIN addresses announced to Internet: 1072770560
Equivalent to 63 /8s, 241 /16s and 46 /24s
Percentage of available ARIN address space announced: 56.8

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 118697
Total RIPE prefixes after maximum aggregation: 61060
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 122312
Unique aggregates announced from the RIPE address blocks: 78870
RIPE Region origin ASes present in the Internet Routing Table: 17498
RIPE Prefixes per ASN: 6.99
RIPE Region origin ASes announcing only one prefix: 8299
RIPE Region transit ASes present in the Internet Routing Table: 2821
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2455
Number of RIPE addresses announced to Internet: 656556800
Equivalent to 39 /8s, 34 /16s and 67 /24s
Percentage of available RIPE address space announced: 95.4

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52041
Total LACNIC prefixes after maximum aggregation: 9864
LACNIC Deaggregation factor: 5.28
Prefixes being announced from the LACNIC address blocks: 57085
Unique aggregates announced from the LACNIC address blocks: 26569
LACNIC Region origin ASes present in the Internet Routing Table: 2031
LACNIC Prefixes per ASN: 28.11
LACNIC Region origin ASes announcing only one prefix: 555
LACNIC Region transit ASes present in the Internet Routing Table: 386
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 879
Number of LACNIC addresses announced to Internet: 142099968
Equivalent to 8 /8s, 120 /16s and 70 /24s
Percentage of available LACNIC address space announced: 84.7

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11612
Total AfriNIC prefixes after maximum aggregation: 2581
AfriNIC Deaggregation factor: 4.50
Prefixes being announced from the AfriNIC address blocks: 12255
Unique aggregates announced from the AfriNIC address blocks: 4033
AfriNIC Region origin ASes present in the Internet Routing Table: 674
AfriNIC Prefixes per ASN: 18.18
AfriNIC Region origin ASes announcing only one prefix: 198
AfriNIC Region transit ASes present in the Internet Routing Table: 130
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 48059392
Equivalent to 2 /8s, 221 /16s and 84 /24s
Percentage of available AfriNIC address space announced: 47.7

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2712 903 89 PT TELEKOMUNIKASI INDONESIA
4766 2138 11550 644 Korea Telecom (KIX)
7545 2100 319 109 TPG Internet Pty Ltd
4755 1787 391 188 TATA Communications formerly
9829 1552 1242 48 BSNL National Internet Backbo
4808 1289 2193 367 CNCGROUP IP network: China169
9498 1210 309 74 BHARTI Airtel Ltd.
9583 1189 91 512 Sify Limited
7552 1157 1080 13 Vietel Corporation
24560 1093 380 166 Bharti Airtel Ltd., Telemedia

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3056 3688 56 BellSouth.net Inc.
22773 2188 2939 138 Cox Communications, Inc.
18566 2057 379 179 MegaPath Corporation
1785 2029 682 126 PaeTec Communications, Inc.
20115 1681 1654 607 Charter Communications
4323 1638 1102 421 Time Warner Telecom
701 1503 11145 781 MCI Communications Services,
30036 1388 313 578 Mediacom Communications Corp
7018 1348 17812 883 AT&T WorldNet Services
6983 1294 756 579 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1814 544 17 OJSC "Vimpelcom"
34984 1363 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1117 409 853 Akamai Technologies European
31148 1005 44 18 FreeNet ISP
13188 887 99 49 TOV "Bank-Inform"
6849 861 356 30 JSC UKRTELECOM,
6830 775 2328 427 UPC Distribution Services
8551 759 370 41 Bezeq International
12479 675 798 55 Uni2 Autonomous System
35228 540 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3434 1784 85 NET Servicos de Comunicao S.A
10620 2642 428 237 TVCABLE BOGOTA
7303 1550 1086 259 Telecom Argentina Stet-France
18881 1538 844 20 Global Village Telecom
8151 1347 2848 410 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 814 93 91 Telconet S.A
6147 791 373 27 Telefonica Del Peru
6503 785 434 61 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 884 338 30 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 410 956 9 TEDATA
24835 294 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
36992 227 501 29 Etisalat MISR
29571 223 17 12 Ci Telecom Autonomous system
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3434 1784 85 NET Servicos de Comunicao S.A
6389 3056 3688 56 BellSouth.net Inc.
17974 2712 903 89 PT TELEKOMUNIKASI INDONESIA
10620 2642 428 237 TVCABLE BOGOTA
22773 2188 2939 138 Cox Communications, Inc.
4766 2138 11550 644 Korea Telecom (KIX)
7545 2100 319 109 TPG Internet Pty Ltd
18566 2057 379 179 MegaPath Corporation
1785 2029 682 126 PaeTec Communications, Inc.
36998 1854 112 5 Sudanese Mobile Telephone (ZA

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3056 3000 BellSouth.net Inc.
17974 2712 2623 PT TELEKOMUNIKASI INDONESIA
10620 2642 2405 TVCABLE BOGOTA
22773 2188 2050 Cox Communications, Inc.
7545 2100 1991 TPG Internet Pty Ltd
1785 2029 1903 PaeTec Communications, Inc.
18566 2057 1878 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
8402 1814 1797 OJSC "Vimpelcom"
4755 1787 1599 TATA Communications formerly

Complete listing at http://thyme.rand.apnic.net/hk/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
62828 UNALLOCATED 8.21.130.0/24 3356 Level 3 Communicatio
62734 UNALLOCATED 8.31.128.0/24 3356 Level 3 Communicatio

Complete listing at http://thyme.rand.apnic.net/hk/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon

Complete listing at http://thyme.rand.apnic.net/hk/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.90.192.0/18 36086 Broad Communications Technolo
23.91.0.0/19 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 40676 Psychz Networks
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c
23.91.160.0/22 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:30 /11:92 /12:254
/13:473 /14:914 /15:1604 /16:12771 /17:6696 /18:11164
/19:22920 /20:32650 /21:35356 /22:49869 /23:43577 /24:248327
/25:3 /26:5 /27:8 /28:7 /29:6 /30:0
/31:0 /32:1

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2011 2057 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1709 3056 BellSouth.net Inc.
8402 1500 1814 OJSC "Vimpelcom"
22773 1454 2188 Cox Communications, Inc.
30036 1235 1388 Mediacom Communications Corp
11492 1199 1240 Cable One
1785 1080 2029 PaeTec Communications, Inc.
6983 1034 1294 ITC^Deltacom
22561 968 1245 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/hk/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:881 2:845 3:3 4:17 5:1011 6:21
8:616 12:1892 13:3 14:890 15:11 16:3
17:18 18:19 20:21 23:508 24:1741 27:1607
31:1491 32:45 33:2 34:5 36:81 37:1882
38:922 39:4 40:178 41:3181 42:225 44:14
46:2021 47:10 49:681 50:829 52:12 54:42
55:5 56:2 57:26 58:1080 59:573 60:373
61:1462 62:1216 63:1983 64:4354 65:2343 66:4133
67:2096 68:1104 69:3286 70:870 71:489 72:2037
74:2555 75:326 76:295 77:1172 78:1038 79:643
80:1293 81:1018 82:652 83:632 84:583 85:1251
86:421 87:1008 88:562 89:1588 90:150 91:5649
92:611 93:1597 94:2025 95:1586 96:510 97:344
98:1040 99:39 100:30 101:623 103:3506 105:527
106:131 107:211 108:533 109:1912 110:958 111:1078
112:592 113:808 114:749 115:1044 116:1001 117:829
118:1174 119:1288 120:359 121:749 122:1828 123:1251
124:1358 125:1431 128:656 129:229 130:327 131:666
132:365 133:157 134:552 135:67 136:279 137:268
138:350 139:177 140:192 141:333 142:539 143:404
144:490 145:87 146:523 147:391 148:778 149:366
150:152 151:587 152:412 153:204 154:51 155:491
156:290 157:424 158:278 159:686 160:359 161:452
162:823 163:224 164:631 165:583 166:257 167:630
168:1045 169:128 170:1117 171:182 172:25 173:1601
174:684 175:513 176:1274 177:2399 178:1955 179:201
180:1575 181:793 182:1312 183:463 184:666 185:989
186:2611 187:1471 188:1826 189:1268 190:7167 192:7072
193:5407 194:4030 195:3359 196:1322 197:1023 198:4732
199:5472 200:6054 201:2526 202:8929 203:8907 204:4529
205:2644 206:2839 207:2832 208:3989 209:3651 210:2962
211:1559 212:2137 213:1976 214:884 215:91 216:5381
217:1683 218:626 219:321 220:1274 221:566 222:326
223:507

End of report
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