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.

Thursday, November 28, 2013

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

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Fri 29 Nov, 2013

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

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

BGP routing table entries examined: 470989
Prefixes after maximum aggregation: 188681
Deaggregation factor: 2.50
Unique aggregates announced to Internet: 234762
Total ASes present in the Internet Routing Table: 41305
Prefixes per ASN: 11.40
Origin-only ASes present in the Internet Routing Table: 35488
Origin ASes announcing only one prefix: 16315
Transit ASes present in the Internet Routing Table: 5817
Transit-only ASes present in the Internet Routing Table: 156
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 1054
Unregistered ASNs in the Routing Table: 288
Number of 32-bit ASNs allocated by the RIRs: 5411
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 13269
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1240
Number of addresses announced to Internet: 2655819520
Equivalent to 158 /8s, 76 /16s and 151 /24s
Percentage of available address space announced: 71.7
Percentage of allocated address space announced: 71.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 163673

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

Prefixes being announced by APNIC Region ASes: 110250
Total APNIC prefixes after maximum aggregation: 33495
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 112502
Unique aggregates announced from the APNIC address blocks: 47831
APNIC Region origin ASes present in the Internet Routing Table: 4851
APNIC Prefixes per ASN: 23.19
APNIC Region origin ASes announcing only one prefix: 1237
APNIC Region transit ASes present in the Internet Routing Table: 810
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 728919040
Equivalent to 43 /8s, 114 /16s and 108 /24s
Percentage of available APNIC address space announced: 85.2

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 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: 163208
Total ARIN prefixes after maximum aggregation: 81456
ARIN Deaggregation factor: 2.00
Prefixes being announced from the ARIN address blocks: 164132
Unique aggregates announced from the ARIN address blocks: 75785
ARIN Region origin ASes present in the Internet Routing Table: 15919
ARIN Prefixes per ASN: 10.31
ARIN Region origin ASes announcing only one prefix: 6011
ARIN Region transit ASes present in the Internet Routing Table: 1609
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 1073382656
Equivalent to 63 /8s, 250 /16s and 133 /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: 119007
Total RIPE prefixes after maximum aggregation: 61044
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122724
Unique aggregates announced from the RIPE address blocks: 78961
RIPE Region origin ASes present in the Internet Routing Table: 17526
RIPE Prefixes per ASN: 7.00
RIPE Region origin ASes announcing only one prefix: 8309
RIPE Region transit ASes present in the Internet Routing Table: 2790
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 656209664
Equivalent to 39 /8s, 28 /16s and 247 /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: 52780
Total LACNIC prefixes after maximum aggregation: 9888
LACNIC Deaggregation factor: 5.34
Prefixes being announced from the LACNIC address blocks: 58029
Unique aggregates announced from the LACNIC address blocks: 27176
LACNIC Region origin ASes present in the Internet Routing Table: 2041
LACNIC Prefixes per ASN: 28.43
LACNIC Region origin ASes announcing only one prefix: 550
LACNIC Region transit ASes present in the Internet Routing Table: 395
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: 0
Number of LACNIC addresses announced to Internet: 144595712
Equivalent to 8 /8s, 158 /16s and 91 /24s
Percentage of available LACNIC address space announced: 86.2

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: 11719
Total AfriNIC prefixes after maximum aggregation: 2590
AfriNIC Deaggregation factor: 4.52
Prefixes being announced from the AfriNIC address blocks: 12361
Unique aggregates announced from the AfriNIC address blocks: 4010
AfriNIC Region origin ASes present in the Internet Routing Table: 689
AfriNIC Prefixes per ASN: 17.94
AfriNIC Region origin ASes announcing only one prefix: 208
AfriNIC Region transit ASes present in the Internet Routing Table: 138
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: 0
Number of AfriNIC addresses announced to Internet: 48521216
Equivalent to 2 /8s, 228 /16s and 96 /24s
Percentage of available AfriNIC address space announced: 48.2

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 2715 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2137 11550 641 Korea Telecom (KIX)
7545 2100 319 111 TPG Internet Pty Ltd
4755 1793 392 190 TATA Communications formerly
9829 1544 1245 45 BSNL National Internet Backbo
4808 1292 2194 369 CNCGROUP IP network: China169
9583 1251 95 510 Sify Limited
9498 1213 309 73 BHARTI Airtel Ltd.
7552 1164 1080 13 Vietel Corporation
24560 1096 382 166 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 3042 3688 53 BellSouth.net Inc.
22773 2208 2939 136 Cox Communications, Inc.
18566 2052 379 178 MegaPath Corporation
1785 2042 685 131 PaeTec Communications, Inc.
20115 1682 1653 602 Charter Communications
4323 1653 1098 421 Time Warner Telecom
701 1507 11144 783 MCI Communications Services,
7029 1470 1257 164 Windstream Communications Inc
30036 1388 313 582 Mediacom Communications Corp
7018 1343 17798 882 AT&T WorldNet Services

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 1894 544 16 OJSC "Vimpelcom"
34984 1367 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1193 452 900 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 894 99 48 TOV "Bank-Inform"
6849 856 363 39 JSC UKRTELECOM,
8551 784 370 41 Bezeq International
6830 774 2328 426 UPC Distribution Services
12479 680 798 53 Uni2 Autonomous System
35228 547 246 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 3399 1807 90 NET Servicos de Comunicao S.A
10620 2671 433 213 Telmex Colombia S.A.
7303 1729 1151 232 Telecom Argentina Stet-France
18881 1706 908 20 Global Village Telecom
8151 1352 2852 419 UniNet S.A. de C.V.
11830 867 364 15 Instituto Costarricense de El
27947 814 93 89 Telconet S.A
6147 791 373 27 Telefonica Del Peru
6503 782 434 59 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 1864 112 5 Sudanese Mobile Telephone (ZA
24863 869 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 411 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 255 921 213 The Internet Solution
29571 227 17 14 Ci Telecom Autonomous system
36992 222 501 29 Etisalat MISR
15706 221 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 3399 1807 90 NET Servicos de Comunicao S.A
6389 3042 3688 53 BellSouth.net Inc.
17974 2715 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2671 433 213 Telmex Colombia S.A.
22773 2208 2939 136 Cox Communications, Inc.
4766 2137 11550 641 Korea Telecom (KIX)
7545 2100 319 111 TPG Internet Pty Ltd
18566 2052 379 178 MegaPath Corporation
1785 2042 685 131 PaeTec Communications, Inc.
8402 1894 544 16 OJSC "Vimpelcom"

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 3042 2989 BellSouth.net Inc.
17974 2715 2627 PT TELEKOMUNIKASI INDONESIA
10620 2671 2458 Telmex Colombia S.A.
22773 2208 2072 Cox Communications, Inc.
7545 2100 1989 TPG Internet Pty Ltd
1785 2042 1911 PaeTec Communications, Inc.
8402 1894 1878 OJSC "Vimpelcom"
18566 2052 1874 MegaPath Corporation
36998 1864 1859 Sudanese Mobile Telephone (ZA
18881 1706 1686 Global Village Telecom

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.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 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.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 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 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 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 /10:31 /11:92 /12:253
/13:475 /14:920 /15:1625 /16:12823 /17:6740 /18:11174
/19:23123 /20:32986 /21:35611 /22:50107 /23:43938 /24:251032
/25:3 /26:5 /27:9 /28:7 /29:6 /30:0
/31:0 /32:1

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

ASN No of nets Total ann. Description
18566 2007 2052 MegaPath Corporation
36998 1829 1864 Sudanese Mobile Telephone (ZA
6389 1700 3042 BellSouth.net Inc.
8402 1581 1894 OJSC "Vimpelcom"
22773 1462 2208 Cox Communications, Inc.
30036 1230 1388 Mediacom Communications Corp
11492 1195 1233 Cable One
1785 1086 2042 PaeTec Communications, Inc.
7029 1047 1470 Windstream Communications Inc
6983 1035 1294 ITC^Deltacom

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

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

1:907 2:853 3:3 4:17 5:1021 6:21
8:610 12:1874 13:3 14:898 15:11 16:3
17:18 18:19 20:25 23:603 24:1760 27:1704
31:1517 32:45 33:2 34:5 36:87 37:1939
38:918 39:5 40:185 41:3252 42:301 44:14
46:2033 47:10 49:689 50:849 52:12 54:44
55:5 56:4 57:26 58:1097 59:578 60:368
61:1480 62:1248 63:1976 64:4402 65:2355 66:4248
67:2100 68:1103 69:3305 70:946 71:515 72:2024
74:2627 75:394 76:293 77:1215 78:1062 79:665
80:1275 81:1048 82:628 83:682 84:587 85:1248
86:380 87:1019 88:552 89:1550 90:153 91:5690
92:612 93:1604 94:2078 95:1517 96:515 97:347
98:1081 99:41 100:29 101:655 103:3702 105:530
106:143 107:216 108:535 109:2000 110:980 111:1091
112:586 113:801 114:764 115:1059 116:1002 117:825
118:1209 119:1290 120:341 121:755 122:1866 123:1270
124:1411 125:1430 128:652 129:232 130:351 131:654
132:353 133:158 134:304 135:72 136:278 137:249
138:351 139:181 140:199 141:336 142:550 143:395
144:495 145:90 146:550 147:410 148:775 149:370
150:153 151:664 152:412 153:207 154:53 155:501
156:306 157:420 158:284 159:694 160:360 161:456
162:915 163:227 164:617 165:586 166:282 167:636
168:1043 169:125 170:1108 171:185 172:11 173:1661
174:716 175:530 176:1329 177:2538 178:1871 179:291
180:1583 181:871 182:1404 183:460 184:640 185:1075
186:2678 187:1459 188:1853 189:1254 190:7300 192:7075
193:5438 194:4027 195:3357 196:1332 197:1037 198:4738
199:5501 200:6054 201:2509 202:8941 203:8882 204:4539
205:2650 206:2851 207:2812 208:3958 209:3678 210:3012
211:1575 212:2152 213:1999 214:892 215:86 216:5435
217:1698 218:628 219:319 220:1276 221:585 222:328
223:515

End of report
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